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 0x5e3eebcbf29f47684dc0d762462d90943a1d11efb461a9e612c163ce63b2d5dd. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9af4d03-5a1e-4cf8-9d92-623ce3c1bf77.json and https://artists.proofprofile.net/proofs/artist/f9af4d03-5a1e-4cf8-9d92-623ce3c1bf77.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 0x0dc983208774f0a59b8e0ae47ed49036579efcc0376ead52ef47ba368f789434. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:43:53Z), 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/DGA072233701.
Keyfimiz Ellere Dert Oldu (Canlı Performans)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfaadc5e2ccd5ccd3e67ff0dce7d54d330a72091d20a791edcc5ef3ba6299cc2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR2X42315277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56c368fec9c09bfd4177dcadc8a343d697cc71050c3b82455f02023e280e34d. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/FR2X42315272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25903116c716ccd7ac4414c868b0543fe0562b70e1b2b61d7e7f51d09bad90f9. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:47:44Z), 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/FRX452480561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5958373cf369ccf9d3f72d5bc8782c46afe1a067739849e0518ba141132ecd. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRX762469207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5c8db4861ee3ac310d3b13533b9523260ce37e1af446b2da06ee86a6a58a26. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA0S2451543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0caf030e8ae70c61d73277c729eaef3341a34d943c62b3ae3ee58ced443a92ad. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/FR10S2524006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060546dad2993f897d1e731d81e1246e77b86c35ab5e34ca3912f0feae0bb115. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA062522451.