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 0x5875267dd3cb0148a30ff039bcf332e5d5bc10270664e8cffe85de135c1f1965. 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/2793e46a-7c79-4ee7-8c52-c751c8c527ec.json and https://artists.proofprofile.net/proofs/artist/2793e46a-7c79-4ee7-8c52-c751c8c527ec.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 0x51a7ed431f70f3ff85a183cd67c124a7ba9586b47aded3ffe711578a858c217b. 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/DEQ022390247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96928769c6bf3986dc7404c9adbbb7268a6a1c8479c3dd7ed65de1e11fad6597. 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/DEQ022151324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e789e3ef9b061c7c756b867fba848b08976142189236278c7aea1b5a8bc7d7d. 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/DEQ022151325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cabe055bc21ece6bee5b33fbeb572114d238ec2f10663391bb8fcf8b1f8c8a. 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/DEQ022151329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd084fbe40e735e4c804f84952a91484de5157dd8e216c448525f019a9103646b. 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/DEQ022110833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729235ccd27f3cafd6b5a0490869048a3e517c6546c20515f5d7ca00af410c27. 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/DEQ022110843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268c26470e565daa72d287a0afbb0bcc9490eea9c5045cdcf42a42de22c172c2. 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/DEQ022110845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430e9eb0fe63aa67403b7ffb66c4cf87a06bbd06b82d4f5964b16e55cc751e22. 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/DEQ022110846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151b2ff46b5af4007d66582ab60676a96276a4e1c8dcb0f3908dbbd9db4779df. 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/DEQ022110848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16ac88fc63531741bb7238bbb0c1171be781dbf5838241f727814101d17fbdc. 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/DEQ022110849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcedd84c0f261379e90cb58f754685d45684c2b95dca416ea8b8d73265825b80. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEQ022110853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f67b6621bfde9e01d418654d6192da3b3b85b2e24c3f8e6a46ded171850b80. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:02:44Z), 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/DEY471813102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e71276d4ed86b264f43e113dd3827fccbc09b28dc75525cbb90c4957b8c6f6d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEY471813108.
Dinner With The Beatz Vol. 1 - 2012 Re-Edits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17faa8109afe93654e0ac314a097a0932df76480572d7307f49d617af5af6804. 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/DEY470915170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28a0de4823a11627d8616a305e9617fe855a4a8d91223022191f938730ca535. 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/DEY470915176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5464a6160f740392ae32afc8b5bdd6e5d74e10178d72e109f897474b757e6d. 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/DEY470915179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7817b9ae01c6a558755cee29f3938b51b79f13b1cf5f4e297a81320121df9cb9. 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/DEY470915180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd08c9c0ec41ae180d90ec52ea6fcba6448d0826d441b9815503c55b78b71ed9. 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/DEY470915182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b28a96534efc0996dbeddde0308b6580da1e59a3767469839f96895d5a038b8. 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/DEY470915184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6390478f8a79d846e15d6dabf2e96e67d50a3819c2f9568babbe54e24cd83c00. 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/DEY470915188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25189fa73eb0b6ae23391d767c249e331711185252e674c59111de605d31d4cb. 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/DEY470915190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970e3707166ed27a7382c3e6e9c68de9fb7019980df825131dcd5f78a62aedee. 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/DEY470915192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1f16dc870ae72acbb4a1843637fcdb4ba95fcad40705ce251fbdb14796b552. 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/DEY470915200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bda81c7a390a7e0598691ad6dc56a8fd62c76be62b7315a0a063071cb3c789. 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/DEMA81100770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907334e48c0b3828cea92ccfcd3a142aa8518871082be8ddaa1ffd1311762b5c. 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/DEMA81100771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878f87674e7bba5a197a4eac1d3ba1dc36b86f753c7dba4fc0e8103226a20a96. 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/DEMA81100773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6859d68c7dbdd6e6208f30424f80dde8bdb13e15bc9e85656b04b4ee7ffc4cf. 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/DEMA81100779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3f24a8e903e1f92089997bfe90253ec1df8b6d5cedf2b282d2443cf392ef6e. 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/DEMA81100780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1804da13efcc0413d6d23865791ed427f78b0260373fca8c0b5a4c18dc6d17b9. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/DEMA81100788.