{"copyright_id":"0xd8de2cc3eb50c7537a5dad37a375e61927c71c4a9f8ba8c0b927d6e8a48cef16","name":"FEATHERED SUN","registered_at":"2026-06-11T10:57:50Z","symbol":"NIM0006505","token_address":"0xba2debbe0470f359a5deebeb968abcdabf06b5cc","type":"artist","uuid":"049381bc-edeb-4c2f-abe4-aea64de43771"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8de2cc3eb50c7537a5dad37a375e61927c71c4a9f8ba8c0b927d6e8a48cef16. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/049381bc-edeb-4c2f-abe4-aea64de43771.json and https://artists.proofprofile.net/proofs/artist/049381bc-edeb-4c2f-abe4-aea64de43771.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891eee27e133441e4a871be5b9d32866c0379c4b75bb6fa44b3351f1b4005d97. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2T01500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4688be9e52c1cabbfed37f6ed02dae09e98836dc274ea910dead140ee21e43. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T21:10:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2387724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195a00d680beafd834ea5be98132d0a26c966d594f9d78a15166110a65bec971. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1670483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c67582f5e8746be036da49706d6993261a413591026f5788444bb5cf8ff1347. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBE71600336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36141c5fc5ce3f7067ada55f61536b12748060c7dae539d15a798de9e5500e79. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2314016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ca956cead0f0078e0930dd28bd04739dcc7bbf93e041874f69bc31dd417f72. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1670482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075b76fb8f94642e16fad207ffcf9ecda35b91153be5adebf8452e56ff4ad06f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEH741921405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da55fc94410ced7d25525b82ea77adfb4985b625967db6b391e33d3f1c290fd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2T01500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2018dc3b522b4ef00f9f8126c1714164c6703b961f7193e359ed29623cd4239. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2331274.