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 0x08e82c4d1bc7f91ec524c6d97e9ef94412d6f4e258450be1fa29c33cf6c27508. 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/9741c02b-5ed1-42cd-b034-97ffce32faed.json and https://artists.proofprofile.net/proofs/artist/9741c02b-5ed1-42cd-b034-97ffce32faed.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 0xc1b77e7d5e98eb156714030487250459821104970dce733de33654622383cc4c. 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/DEPI82453009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fd432293b3c4964a945c61283706e7d0cbb99d99f5c8cabc164c6f2d048223. 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/DEPI82453007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7b326a9b4b9ed367d4cb1da307d80d82d669a76b4132bcfb7a04ce3738d796. 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/DEPI82501769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a2f72a5ed26b4db26ca6b6c9612d024b64fad9e7caec3197b0115ad61c4f7a. 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/DEPI82501649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a14f6e1aa82a9d3b24278404e457df4a6dbcd0a8474b78a1537adc711fd126f. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:46:22Z), 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/DEPI82452987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01698deebd794c2d210dd2cb35494ef7d9c3cf5c04a1f5bf0cb93bb3159d2b9e. 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/DEPI82449587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4e1c2f6ff39c3492c3102cacbb471c8bd3fa53ee8be81d1653d2251e4f07c2. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:23:46Z), 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/DEPI82448715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd626f9058fa086c5d06166c481ce40030463250b0345b06b17669b35908d23. 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/DEPI82454426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d9d3d09ca20c1f2e663bc50d26659e03c69fc50872cc393fc7b8cfa4384d9a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEPI82450049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2370c335e2d36c852a8989d119f86c47f30a0d2bafc1a6945d89a7393e635bf. 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/DEPI82449367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7612ae78f7b18f3fef59b247c57aaec8421ae206778f5f5bd638ea5118846e97. 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/DEPI82320691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83f81caac16ac94275fb99b667993f75c7283b1d5ce2abca7e910bb12efdd51. 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/DEPI82439138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8656575fbd271c41496b908a6e20c6314b9a01d864a76ca58bd0c178123cbbe7. 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/DEPI82446658.
Another One Bites (Jackers Revenge Remix)
Another One Bites - Jackers Revenge Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f169daa5e753a54a9f567a46816521ff12d440d8c266b738d6d83bdb31024e2. 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/GBSCL2491013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad32785c0c59d47f96455fc9301c9f111e2601d1da7e3ef5e48ca0647e017639. 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/DEPI82445172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc87adf60bb9329d7de270501d3960d04c561b9320cf2d9f61eee60494ad458f. 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/DEPI82453905.
Jsweet Caroline - Ghostbusterz Summer Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b4a10922112e4678433294f1a7ef7bd87169f68e056e7e4ba4cd2f3c599bc5. 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/DEPI82409937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1756a9ec1210d168bf3d605d650defebce144048394481e6ef98a2b1577b9d. 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/DEPI82407200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d98c6fc208de15fc67d4558d48feaf7e3e3bdfda8324a29117860221d08296f. 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/DEPI82407568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cf79c1eaa3388cd11922b76a9b8e325cec1e53ee9c5127f81832953a0d5b2f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:04:40Z), 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/DEPI82403569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc22e76d4a29e0b5dfa399e283879f79781fbc3cdc970a3e647945b183d2fce. 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/DEPR32000088.