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 0x0e51297e6af4789e950aaeb056d5632084a8ef50cff97afebb15976d804cb8b3. 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/288ae55c-5205-4fe5-ba6f-bed86483f52d.json and https://artists.proofprofile.net/proofs/artist/288ae55c-5205-4fe5-ba6f-bed86483f52d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Quiero Conocer a Jesús (Yeshua) [feat. Dayana Barbosa & Samuel David]
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 0xa503d5620c208584f0698c8faead2c705605ed50e902269b93e605d1552321ae. 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/QZK6M2026496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04ea23efd4f2f0b840fe107b4783910cad013cbcfb0b91385a5c10603230994. 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/QZMER2083691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4add0d170d4d4fcc2b88cba8188e8e59fcb80ff8bb1d8afd53bf78d43283d8ce. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZMER2083693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc595df630375cc855fd12d750865964be0569dd30f352e01630736df2fb5c74f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZMER2083694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe8bc91f1abd7f715c6f5161090a91f1769ab51e646324de574a8d3edb6030e. 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/QZMER2083695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa393c9188c88b27c1fd051fb29389f0c6d810731d0a842de982c889b13f30055. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZMER2083698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3888527a092809839acd72c234703fb0b2ea780caf6ff8e12d5c401d7a4ce5f1. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZMER2083699.
Si Tuvieres Fe - La Sombra de Pedro (Popurrí)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a549af66bac1ce857430b4067944d7589c5be8427954cc2dbb28ffcc7ec704. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZNWQ2143851.
Sigue Tocando el Arpa - Si has Venido al Señor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03688a850233bba2cf9fcee5898add74d00f0e758ee81db204fea90af3d4e98. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNWQ2143853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82097fde0fa80686bc987abad2d641d8409e5056864f38faeec0d3994e8fc3f7. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZNWW2243834.
Con Mi Dios Yo Asaltare Los Muros (Popurrí)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d4c62635f0ccebed799279db7d6b484b1bf01b0a4c44fb9bf8f23a23e67b7d. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZMER2384126.