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 0xdb8f6d732608bb988542dfe9f5bed205c6c30961f11cd97af6a3100318f55edd. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00ef57f4-e0de-4131-818d-687eb36e158a.json and https://artists.proofprofile.net/proofs/artist/00ef57f4-e0de-4131-818d-687eb36e158a.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 0x1657029f1fefa24b78c065cce8ae7f46d9761fc9448b25112a87ec32ed35f6c8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USDHM1112862.
Tribute To Chano Pozo / Dancing With The Gods
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3467fd687b21b2d4fda95cee9f8542df0e67cafbea8c0e0cfb3a6ed6bba9ab9c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USDHM1200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb835971a691c59248ef41a39496a2d5b69cc2018cf2f611c7ad57ed62e40f4. 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/USDHM1200224.
Tribute To Chano Pozo, Vol. 2 / Dancing With The Gods
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e2900dd55d27c5082b8535c4aa18dabff5ab7809810e91c0f2a4b7de8fa6d5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USDHM1112302.
Maquino Landera (Tributo a Cortijo y Ismael Rivera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0fde67f1d2492b906b005e5af5cda674ff1b0a44198380841af13efe62bd30. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/USDHM1113184.
Severa (Tributo a Cortijo Y Ismael Rivera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9af6d8dca55c47665eb1a9e877c8496d248edbda0375bd1892ca08d401d80d. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:06:53Z), 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/USDHM1113188.
Vamonos Pal Monte (Tributo A Eddie Palmieri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689b1f5d740268cf2d0edfac9c549ee5489571bcc944577bd945c88b7e074f78. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USDHM1113190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaff0467b2cecb9d2d8d3ec86878f126a57012a58556803c90fe37339acb3098. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USDHM1113191.
Tribute To Chano Pozo / Pa' Bailar y Gozar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce149a5a8433e35705c57380f03e9b84ff95547078244bc6147f713c9122afc. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:09:20Z), 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/USDHM1112647.
Tribute To Chano Pozo / Pa' Bailar Y Gozar
Tributo AChano Pozo / Pa' Bailar Y Gozar
Tributo A Chano Pozo, Vol. 2 / Dancing With The Gods
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a101ebfaf8210fe252412c1d2a94d693372d8c0d4aadfa6b88b491266edbb42. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM7281747239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3de0d791b952171a6c895f9d066d0055bf4cb1c27663afe445be110bda96644. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU2076305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2786ca6c15178c4b9c0b8c7e4c9995f2d4849944f9fafba138ff14c5550b01. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM21811828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc0aeece876ed7ed1c7259505d93da3b74d1fce8fcb28151ae0b0426206a2ed. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM21811833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294e1ca49e56bd26b92b218b3de06cf48b528e4b7e19ff08cc4e1cc8f96cb71c. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/GBKQU2076308.
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 0xcf623d19aff792afc8d3d6b2c67535b390d4230b34c3a6f289318b580fbdc3d9. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USHM21811829.