diff --git a/backend/backend/backend-src/lib/aws.ts b/backend/backend/backend-src/lib/aws.ts
index 1317654..0b7b8ab 100644
--- a/backend/backend/backend-src/lib/aws.ts
+++ b/backend/backend/backend-src/lib/aws.ts
@@ -1,5 +1,6 @@
 import fs from 'fs'
 import {
+  DeleteItemCommand,
   DynamoDBClient,
   GetItemCommand,
   PutItemCommand,
@@ -9,11 +10,14 @@ import {
   TransactGetItemsCommand,
   TransactWriteItem,
   TransactWriteItemsCommand,
+  UpdateItemCommand,
 } from '@aws-sdk/client-dynamodb'
 import {marshall, unmarshall} from '@aws-sdk/util-dynamodb'
 import {DeleteObjectCommand, PutObjectCommand, S3Client} from '@aws-sdk/client-s3'
 import {getSignedUrl} from '@aws-sdk/s3-request-presigner'
 
+import slug from 'slug'
+
 import * as IFace from './interfaces'
 
 const BUCKET = 's3m-contracts-dev'
@@ -368,83 +372,107 @@ export async function getAddressEventsDB(address: string) {
   else return response.Items?.map(item => unmarshall(item)) ?? []
 }
 
-export async function getRelatedDB(address: string): Promise<Record<string, string>[]> {
+export async function listRelatedDB(pkgaddress: string) {
+  const command = new QueryCommand({
+    TableName: RELATED_TABLE,
+    KeyConditionExpression: 'address = :address',
+    ExpressionAttributeValues: {
+      ':address': {S: pkgaddress},
+    },
+    ProjectionExpression: 'slug, label, wallet_address',
+  })
+
+  const response = await dbclient.send(command)
+
+  if (response.Items === undefined) return []
+  else return response.Items?.map(item => unmarshall(item)) ?? []
+}
+
+export async function getRelatedDB(pkgaddress: string, slug: string) {
   const command = new GetItemCommand({
     TableName: RELATED_TABLE,
     Key: {
-      address: {S: address},
+      address: {S: pkgaddress},
+      slug: {S: slug},
     },
-    ProjectionExpression: 'related',
   })
 
   const response = await dbclient.send(command)
-  if (response.Item === undefined) return []
+  if (response.Item === undefined) return null
 
-  return (unmarshall(response.Item) ?? {}).related
+  return unmarshall(response.Item)
 }
 
 export async function createRelatedDB(address: string, data: IFace.IRelatedCreate) {
   // get existing item, if any
-  const existing: Record<string, string>[] = await getRelatedDB(address)
-
-  const already = existing.filter(item => item.label == data.label)
-  if (already.length != 0) {
-    return {error: `label '${data.label}' already exists for address: ${already[0].address}`}
-  }
+  const label_slug = slug(data.label)
+  const existing = await getRelatedDB(address, label_slug)
+  if (existing !== null) return {error: `label '${data.label}' already exists for address: ${existing.address}`}
 
   const command = new PutItemCommand({
     TableName: RELATED_TABLE,
     Item: marshall({
       address: address,
-      related: existing.concat({label: data.label, address: data.address}),
+      slug: label_slug,
+      label: data.label,
+      wallet_address: data.address,
     }),
   })
 
   return await dbclient.send(command)
 }
 
-export async function deleteRelatedDB(address: string, data: IFace.IRelatedDelete) {
+export async function deleteRelatedDB(address: string, slug: string) {
   // get existing item, if any
-  const existing = await getRelatedDB(address)
-  if (existing.length == 0) return
-
-  const filtered = existing.filter(item => item.label != data.label)
+  const existing = await getRelatedDB(address, slug)
+  if (existing === null) return
 
-  const command = new PutItemCommand({
+  const command = new DeleteItemCommand({
     TableName: RELATED_TABLE,
-    Item: marshall({
-      address: address,
-      related: filtered,
-    }),
+    Key: {
+      address: {S: address},
+      slug: {S: slug},
+    },
   })
 
   return await dbclient.send(command)
 }
 
-export async function modifyRelatedDB(address: string, data: IFace.IRelatedModify) {
-  // get existing item, if any
-  const existing = await getRelatedDB(address)
-  if (existing.length == 0) return
-
-  let item_address = ''
-  let item_idx = 0
-  for (let idx = 0; idx < existing.length; idx++) {
-    if (existing[idx].label == data.label) {
-      item_address = existing[idx].address
-      item_idx = idx
-    } else if (existing[idx].label == data.new_label) {
-      return {error: `label '${data.new_label}' already exists for address: ${existing[idx].address}`}
-    }
-  }
-  existing[item_idx].label = data.new_label
+export async function modifyRelatedDB(address: string, existing_slug: string, data: IFace.IRelatedModify) {
+  // check if the new label already exists
+  const new_slug = slug(data.label)
+  const maybe = await getRelatedDB(address, new_slug)
+  if (maybe !== null) return {error: `label '${data.label}' already exists for address: ${address}`}
 
-  const command = new PutItemCommand({
-    TableName: RELATED_TABLE,
-    Item: marshall({
-      address: address,
-      related: existing,
-    }),
+  const existing = await getRelatedDB(address, existing_slug)
+  if (existing == null) return {error: `entry '${existing_slug}' does not exist for address: ${address}`}
+
+  let items: TransactWriteItem[] = [
+    {
+      Delete: {
+        TableName: RELATED_TABLE,
+        Key: {
+          address: {S: address},
+          slug: {S: existing_slug},
+        },
+      },
+    },
+    {
+      Put: {
+        TableName: RELATED_TABLE,
+        Item: marshall({
+          address: address,
+          slug: new_slug,
+          label: data.label,
+          wallet_address: existing.wallet_address,
+        }),
+      },
+    },
+  ]
+
+  const txWriteCommand = new TransactWriteItemsCommand({
+    TransactItems: items,
   })
 
-  return await dbclient.send(command)
+  await dbclient.send(txWriteCommand)
 }
diff --git a/backend/backend/backend-src/lib/checks.ts b/backend/backend/backend-src/lib/checks.ts
index 192ca72..54deaf7 100644
--- a/backend/backend/backend-src/lib/checks.ts
+++ b/backend/backend/backend-src/lib/checks.ts
@@ -268,19 +268,9 @@ export async function validRelatedDelete(data: IFace.IRelatedDelete): Promise<IF
 export async function validRelatedModify(data: IFace.IRelatedModify): Promise<IFace.IValid> {
   const stringFields = ['label', 'new_label']
 
-  for (const field of stringFields) {
-    if (!(field in data)) {
-      console.log(`missing field: ${field}`)
-      return {error: `missing field: ${field}`}
-    }
-  }
-
-  if (data.label.trim() == '' || data.new_label.trim() == '') {
-    console.log('missing field')
-    return {error: 'missing field'}
-  } else {
-    data.label = data.label.trim()
-    data.new_label = data.new_label.trim()
+  if (!('label' in data) || data.label.trim() == '') {
+    console.log(`missing field: label`)
+    return {error: `missing field: label`}
   }
 
   return {error: '', data: data}
diff --git a/backend/backend/backend-src/lib/interfaces.ts b/backend/backend/backend-src/lib/interfaces.ts
index c88f800..63af539 100644
--- a/backend/backend/backend-src/lib/interfaces.ts
+++ b/backend/backend/backend-src/lib/interfaces.ts
@@ -60,7 +60,6 @@ export interface IRelatedDelete {
 
 export interface IRelatedModify {
   label: string
-  new_label: string
 }
 
 export function reqToCreated(data: ICreatePackageRequest, s3key: string | undefined): IPackageCreated {
diff --git a/backend/backend/backend-src/server.ts b/backend/backend/backend-src/server.ts
index 6632a60..bbe45b1 100644
--- a/backend/backend/backend-src/server.ts
+++ b/backend/backend/backend-src/server.ts
@@ -145,26 +145,26 @@ app.get('/address-events/:address', async (req, res) => {
   }
 })
 
-app.get('/related/:address', async (req, res) => {
-  const {address} = req.params
-  if (Checks.isValidAddress(address)) {
+app.get('/related/:pkgaddress', async (req, res) => {
+  const {pkgaddress} = req.params
+  if (Checks.isValidPackage(pkgaddress)) {
     res.status(200).json({
       status: 'ok',
-      related: await AWS.getRelatedDB(address),
+      related: await AWS.listRelatedDB(pkgaddress),
     })
   } else {
     res.status(400).json({
       status: 'error',
-      message: `invalid address: ${address}`,
+      message: `invalid package address: ${pkgaddress}`,
     })
   }
 })
 
-app.post('/related/:address', async (req, res) => {
-  const {address} = req.params
+app.post('/related/:pkgaddress', async (req, res) => {
+  const {pkgaddress} = req.params
   const v = await Checks.validRelatedCreate(req.body)
-  if (Checks.isValidAddress(address) && v.error === '') {
-    const ret = await AWS.createRelatedDB(address, v.data as IFace.IRelatedCreate)
+  if (Checks.isValidPackage(pkgaddress) && v.error === '') {
+    const ret = await AWS.createRelatedDB(pkgaddress, v.data as IFace.IRelatedCreate)
     if (ret !== undefined && 'error' in ret) {
       res.status(400).json({
         status: 'error',
@@ -183,37 +183,31 @@ app.post('/related/:address', async (req, res) => {
   } else {
     res.status(400).json({
       status: 'error',
-      message: `invalid address: ${address}`,
+      message: `invalid address: ${pkgaddress}`,
     })
   }
 })
 
-app.post('/related/:address/delete', async (req, res) => {
-  const {address} = req.params
-  const v = await Checks.validRelatedDelete(req.body)
-  if (Checks.isValidAddress(address) && v.error === '') {
-    await AWS.deleteRelatedDB(address, v.data as IFace.IRelatedDelete)
+app.delete('/related/:pkgaddress/:slug', async (req, res) => {
+  const {pkgaddress, slug} = req.params
+  if (Checks.isValidPackage(pkgaddress) && slug.trim() != '') {
+    await AWS.deleteRelatedDB(pkgaddress, slug)
     res.status(200).json({
       status: 'ok',
     })
-  } else if (v.error != '') {
-    res.status(400).json({
-      status: 'error',
-      message: v.error,
-    })
   } else {
     res.status(400).json({
       status: 'error',
-      message: `invalid address: ${address}`,
+      message: `invalid address: ${pkgaddress}`,
     })
   }
 })
 
-app.post('/related/:address/modify', async (req, res) => {
-  const {address} = req.params
+app.patch('/related/:pkgaddress/:slug', async (req, res) => {
+  const {pkgaddress, slug} = req.params
   const v = await Checks.validRelatedModify(req.body)
-  if (Checks.isValidAddress(address) && v.error === '') {
-    const ret = await AWS.modifyRelatedDB(address, v.data as IFace.IRelatedModify)
+  if (Checks.isValidPackage(pkgaddress) && v.error === '') {
+    const ret = await AWS.modifyRelatedDB(pkgaddress, slug, v.data as IFace.IRelatedModify)
     if (ret !== undefined && 'error' in ret) {
       res.status(400).json({
         status: 'error',
@@ -232,7 +226,7 @@ app.post('/related/:address/modify', async (req, res) => {
   } else {
     res.status(400).json({
       status: 'error',
-      message: `invalid address: ${address}`,
+      message: `invalid address: ${pkgaddress}`,
     })
   }
 })
diff --git a/backend/backend/package.json b/backend/backend/package.json
index 85ce31d..a8408f2 100644
--- a/backend/backend/package.json
+++ b/backend/backend/package.json
@@ -21,6 +21,7 @@
     "cors": "^2.8.5",
     "ejs": "^3.1.9",
     "express": "^4.18.2",
+    "slug": "^9.0.0",
     "zip-lib": "^1.0.3"
   },
   "devDependencies": {
@@ -29,6 +30,7 @@
     "@types/ejs": "^3.1.5",
     "@types/express": "^4.17.21",
     "@types/node": "^20.11.17",
+    "@types/slug": "^5.0.8",
     "nodemon": "^3.0.3",
     "prettier": "^3.2.5",
     "ts-loader": "^9.5.1",
diff --git a/backend/backend/pnpm-lock.yaml b/backend/backend/pnpm-lock.yaml
index 073fd4b..5e07e88 100644
--- a/backend/backend/pnpm-lock.yaml
+++ b/backend/backend/pnpm-lock.yaml
@@ -29,6 +29,9 @@ dependencies:
   express:
     specifier: ^4.18.2
     version: 4.18.3
+  slug:
+    specifier: ^9.0.0
+    version: 9.0.0
   zip-lib:
     specifier: ^1.0.3
     version: 1.0.3
@@ -49,6 +52,9 @@ devDependencies:
   '@types/node':
     specifier: ^20.11.17
     version: 20.11.29
+  '@types/slug':
+    specifier: ^5.0.8
+    version: 5.0.8
   nodemon:
     specifier: ^3.0.3
     version: 3.1.0
@@ -1539,6 +1545,10 @@ packages:
       '@types/node': 20.11.29
     dev: true
 
+  /@types/slug@5.0.8:
+    resolution: {integrity: sha512-mblTWR1OST257k1gZ3QvqG+ERSr8Ea6dyM1FH6Jtm4jeXi0/r0/95VNctofuiywPxCVQuE8AuFoqmvJ4iVUlXQ==}
+    dev: true
+
   /@webassemblyjs/ast@1.12.1:
     resolution: {integrity: sha512-EKfMUOPRRUTy5UII4qJDGPpqfwjOmZ5jeGFwid9mnoqIFK+e0vqoi1qH56JpmZSzEL53jKnNzScdmftJyG5xWg==}
     dependencies:
@@ -2861,6 +2871,11 @@ packages:
       semver: 7.6.0
     dev: true
 
+  /slug@9.0.0:
+    resolution: {integrity: sha512-ixytnHlpHPWM56heaGgYe/M8tDAcpJcsg/zBuyElbFDOORzMGOeP3Te6iJBRVYu3WQEiWLQPb70Gh9ig/sZgGQ==}
+    hasBin: true
+    dev: false
+
   /source-map-support@0.5.21:
     resolution: {integrity: sha512-uBHU3L3czsIyYXKX88fdrGovxdSCoTGDRZ6SYXtSRxLZUzHg5P/66Ht6uoUlHu9EZod+inXhKo3qQgwXUT/y1w==}
     dependencies: