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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab12492d4c4b690e83f7c18700db9c30735a14b4f7b6e9a557a0bfb28f8e911f. 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/d5873afa-a965-481b-a074-6278a15cdc22.json and https://artists.proofprofile.net/proofs/artist/d5873afa-a965-481b-a074-6278a15cdc22.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502c7278df4dd930fccf5ee82cee43d7230b6e225aff95138862283a66f774b9. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:33:46Z), 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/QMR6W1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdbef376d7dc3558db95f76e80bbfb48bcba577524c5d59a2008fc2be780262. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMR6W1200007.
Konsey (English Version) [feat. TonyMix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec70ff108af6116180127a8f84426af814cec4b10ebc9eee9b2bda20564e8b05. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/QMR6W1200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a69db63d53182cb818fb8690f1157ad101b33832dad5976d9c7602cb76053cd. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:00:55Z), 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/QMR6W1200023.
Aba blabla (Remix) [feat. Admiral T, Bic & Gardy Girault]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd37a1f6f643f673af0fb07b06b76db29be9b4f7e8c4ca8f560436a2e8cfd765. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:01:29Z), 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/QMR6W1200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd31e04ca64349c9e11457ea85fb7b88e0fa2425f60b3352b8f9d2ff53675d2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMR6W1200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f2359e8f100fffaaea2b30fcb249c31f0bc58208b199c3c7a6adfc6820ae2e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZFCJ2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ccab7544b50ce7258a309ec5876947c6446e49c3f5dbd44287ad0bcded58ba. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:16:47Z), 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/QZL382334162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399524c4db76871775134c050114a0e176d5421f6215570ef56e5e90ea5a6e0b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZNMX2478556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cc61f9ff8d9ed1c2864480bcce8e222b20f5b7032133bab3755f16971bd3b5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZNB82501940.
Shiver Down My Spine (Ao Vivo na Prainha da Claudinha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244f116fc244652a08a89761e8294cf23be2144dd06b9a8cc8cd8ccb7f1707a5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BCCIW2200043.
Jessica (with J Balvin, SAINt JHN, Charly Black & J Perry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfc6577f13eb15a3cd1faff07839d1c77fa1dddc826577894d9291e070ca12f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG12305494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b03800d8e086cef94b2212cab77593eb39d6fd3ab520ce5a92cbd435891e2e. 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/BCCIW2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6877b1d32ae92d21d7fa89b0e3e150d4106bad71d2b0c61c2c441c8eefe6869. 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/GBKPL1777419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8971249260dbbfb6c02b4cbe423d260d309d8c4eb318df13770603e93e3c503. 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/FR59R1710625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d0be3f92e979228af0742996d5041605ab2c674c34cf7157d3f135aaf9853f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USZ4V2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40e98f829f09ab1af227c931990a129d6c3d09a7dd759b2a66f777b7090e96c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLCQ61041311.
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 0x6408b439f6d71b255c64afad00c59d994c0cb825bdc6238d6ec200e6a4082e70. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/TCAFH2031502.