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 0x31a054e90899f482d8d94e2fd23d45d56732cba8083c950dfc09e4ee47919bbb. 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/fafba324-c0b2-4ad0-bdd8-ed80171d04a8.json and https://artists.proofprofile.net/proofs/artist/fafba324-c0b2-4ad0-bdd8-ed80171d04a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Time spent outside the club in South East London
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 0x6857ea402048cb9e0d19d1f1ade102486085ffb3450a44af7263eb5124d0a822. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/QZZ7V2456535.
She reminds me of no one, thats why i like her
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb5bb1d92d62dc838fe8cc02efab08d12d2b4061c4ce574e2eb97162db9762d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFZ62557847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb5bb1d92d62dc838fe8cc02efab08d12d2b4061c4ce574e2eb97162db9762d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFZ62557847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4ff7235584b1b8969ce245364663b48e2fe9854a18d99c16bfd0ac83b3ba5d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZFZ72506800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d9f434160fba2d22df596954ac5d35c3db5f61f9c231c99d688be860eb2aaa. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZDA62558886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d9f434160fba2d22df596954ac5d35c3db5f61f9c231c99d688be860eb2aaa. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZDA62558886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08b458774080b2173c118f62273e67f185cf0f038cb9f849cef96e3cc1ae7a5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA72533061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3aeed0e33d928a0971a12ba9b719a072a4422ffa422811993424c737bcf6c33. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZDA82517165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3aeed0e33d928a0971a12ba9b719a072a4422ffa422811993424c737bcf6c33. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDA82517165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66449362af668c9d58b36ee066fd6a1db266c6f6ad8ef0b7b8550b5f569b6d4. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZDA82589299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66449362af668c9d58b36ee066fd6a1db266c6f6ad8ef0b7b8550b5f569b6d4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZDA82589299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6724da2cc0fccd0131b9866e6c7a2c0f08e7895d793f7a818bd3ba8900d7708b. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZES82545437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6724da2cc0fccd0131b9866e6c7a2c0f08e7895d793f7a818bd3ba8900d7708b. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/QZES82545437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff84729fc7fb67d4d04e2c33b76534f4b3f7253a05aa1f160f5fd1bc5efdab3a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN92527614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a395706df8a4c39ddc9658e195af31ee75299cab90d9bfbb5f296b4516e588. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NL8RL2517637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7a4ae6b2f77c93c0f474246baa878b598d28fca47c203e99b3be7d2cb5c2ac. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/NL8RL2520822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3d1f1ebead682fc44ef5029d8de646b4e4ac0ba0b3c8b3e751ad864fba0d3e. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/NL8RL2520821.