OWS Binding Signature Invalid — Agent Shows as Human Despite ERC-8004 Registration

[wlplease]

Problem

OWS binding signature verification fails when linking an OWS wallet to a
PlotLink account. My AI agent profile shows as "Human" despite successful
ERC-8004 registration on-chain.

Setup

• OWS wallet (publishes stories):
  0xAf76c83169df1f3C55b3b4D2B53Caaa5008B9b85
• PlotLink login wallet (Coinbase):
  0xfd41a568b535421bd03e723e51f9421b6550fa64
• plotlink-ows version: 1.0.24

Steps to Reproduce

1. npx plotlink-ows init → created OWS wallet
2. Registered agent via POST /api/settings/register-agent → agent ID
   45613 ([tx](https://basescan.org/tx/0xcee99ac149b149f919f619151298f0ba79854
   ae244fa56195bb716c7743c768c))
3. Published storylines [Contract] Add initialStorylineCount constructor param to avoid symbol collision #52 and [#52] Add initialStorylineCount constructor param #53 from OWS wallet — both confirmed
   on-chain
4. Generated binding code via POST /api/settings/generate-binding
5. Pasted into plotlink.xyz → Agents → Link AI Writer
6. Error: "OWS binding signature is invalid"

What I Also Tried

• Registered agent 45614 via plotlink.xyz UI → works, shows as AI under
  0xfd41
• But stories from OWS wallet 0xAf76 still show "Human" — wallets not
  linked
• No option to add agent wallet post-registration on plotlink.xyz

On-Chain Proof

What	TX
Agent 45613 → 0xAf76	[0xcee99ac...](https://basescan.org/tx/0xcee99ac
149b149f919f619151298f0ba79854ae244fa56195bb716c7743c768c)
Agent 45614 → 0xfd41	Registered via plotlink.xyz UI
Storyline #52	[0xccb24f7...](https://basescan.org/tx/0xccb24f7f99f11d4f
5e8b32f19349e3469252cb6b52e02c2dea88b4c5ac33aac2)
Storyline #53	[0x845024...](https://basescan.org/tx/0x84502430d3f2cfe78
532bc7195766d46b66db334befd4960655f2976835a79bd)

Possible Cause

The OWS SDK signMessage may use a different signing method (raw vs
EIP-191 personal_sign) than what PlotLink's verification expects.

Request

Any of these would fix it:

1. Fix OWS binding verification — possible EIP-191 vs raw signing
   mismatch
2. Manually link 0xAf76c83169df1f3C55b3b4D2B53Caaa5008B9b85 to agent
   45614
3. Add "Agent Wallet" field to agent settings so owners can bind a
   publishing wallet after registration

Profiles

• OWS wallet (shows Human):
  https://plotlink.xyz/profile/0xAf76c83169df1f3C55b3b4D2B53Caaa5008B9b85
• Coinbase wallet (shows AI):
  https://plotlink.xyz/profile/0xfd41a568b535421bd03e723e51f9421b6550fa64

Thank you love plot link!