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 0xe54556ba36f230d6bcb2f544a11e5fadb1599f2aa0913521a9c64168e2fce211. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35ccb618-d7f4-401a-a8ab-4850353eebad.json and https://artists.proofprofile.net/proofs/artist/35ccb618-d7f4-401a-a8ab-4850353eebad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ahora Que Te Has Ido (Edición Remasterizada)
Canciones del Sur (Edición Remasterizada)
Atlantic sounds (Edición Remasterizada 2023)
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 0x82970c9ef4678f12d4a6b8f36500d5ce4332aec2c9fbbd0a20e2b3f92c359599. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/ESAAI0239373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672d332573633f2bc174393a47526558094abfc9da4c2f47ea775add896b4b71. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/ESAAI0239374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394ae08b6b877f9ecb879ac1fb1e57bb01e1fac61fb9f69fa0a51063593a969c. 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/ESAAI0239380.
En Busca de Valentina (Edición Remasterizada)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d33ef5b45e25d0ad520234fcc5b29e2f93df42e42cabcb45cbf094ec01cbab0. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/ES71G1761465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76a8c772b11860734ff639b562df55baa3b651f24d021d5497226309ca0ed1c. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/ES71G1761471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2634812079c6f9acdbdf07a8f1c104dc100d299dcc052fba746bb396463b2c20. 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/ES71G2015678.
Canciones para un Poeta (Edición DeLuxe)
Palosanto. Canciones Con Guitarras del Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b9f17678ecc4eb1de8bb7f7d3ba01cab1849318fa0460b7fcc6d3fc7ddf761. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ES71G2125031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd0b4b4da0afb6466223ea9810d4d5f359b3ec651e7bbc2ba67bb228931d7ea. 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/ES71G2125032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0d0e5c07b7ed277ab439a3508fb4c5be87fb443db4cc32455ebe6efbc24e19. 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/ES71G2125033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba4b981ec0939711265a2ca3b6700dbcbfd5bf165891203976ce8288bb3fb2a. 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/ES71G2125034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584b5145a8cbc260c3cac833739e6ce88f5377e7f8c6d5429200d0d501e28422. 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/ES71G2125035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f8d707bde61660381583dfa852d84e3bc0301b48160a2b04b0bbda316fe298. 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/ES71G2125036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbaa5b86234024ad142f0f28c134fa3e1d738ae5a6473fb6a39d90f09efe08c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ES71G2125039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f9a70d2a68b142edd60342ab02327f416cd5125fec3e67809fb4c460b33d5f. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/ES71G2125037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbd61d8c8c366137e2a6d6c82b0661807e300bf6ddf45b30073b39397df93a8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES71G2125038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe848d16b1cc9621ddfd4f98a753cacecf3f14784a11dcee69f3a1a4376fe06f6. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/ES71G2125040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9aafe4008b151e0827e650dc7e2dd6eb7907b78a4b8eda4801205401a40db3. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ES71G2125041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b767da7002e9f735bec41cd5ce4b15261e0f951ba953dd33d56dea56d82085b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES71G2125042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede7de2b9c61870a85d4f434b5b44608d94795ec4fbc9d19b815843129b3cd55. 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/ES71G2125043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f822452108d0b6575d83c991e43b9fb49b7112c48933e2bce789ec1291e16a0. 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/ES71G2125044.
Concierto Sanjuanero con Lito Vitale (En Directo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf941c2150be0934b3acf778bbd7389ba992b9b614b41a46a5eb5ca9d3a2fe2. 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/GBMJG2334617.