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 0x6fd520827f2b185dc8bc0ff8b5ce49dff912a68df422baa790d7c6fb297ca0e9. 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/c7a13857-8d06-4723-9e7c-50383b7ec48a.json and https://artists.proofprofile.net/proofs/artist/c7a13857-8d06-4723-9e7c-50383b7ec48a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Sonora Santanera en Su 60 Aniversario
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 0x062af9d8e1e4308475e9d931e42b6fb85c9b97fc876d2729da31f259ee9e4b1f. 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/MXF011600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab32ce553f5fc5ceda32749a9058072c712e9e09f6ef6f6f4b67df22494236fc. 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/MXF011600055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09597bd76b76b16dd87c528944ed24599ae4734e09c68e42b820e57aec67a683. 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/MXF011600063.
Bomboro Quiñá Quiñá (with Rubén Albarrán)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89f1dfdff96f6db614a1b431a94d8186e98b3279300c57c558a6e7ffee5d357. 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/MXF011600062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6cad1bb0e68466051c564ab58745d333e4cbffbb36f1a0308d8bac0eb0fc9e. 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/MXF011600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d88e1ace72de9ff5e09e5c6c2bb8e3964debbe266c94f97803cb1fe1f292aab. 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/MXF011600058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613cc6ab430dce6db6eadc91d0b649630ca2b2b183708a8219e00d27afc4adb1. 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/MXF011600060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fb943b3feee1ffa6a277cf006cd34e43e4645e7346d9fae77aa44dd5bf111f. 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/MXF011600068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0371d8db88699fb630a7de23edbf3561977e7e78e8cd84159de87bf3786018ec. 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/MXF011600069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc866aabaff93cc7ba7f546a71ce0646ab14fa753d5d846dc2454744eaf42c4b. 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/MXF011600056.
En la Orilla del Mar (with Gilberto Santa Rosa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168f667bcad70061b85a675698efb74922701b0b7703eef53d0327c84751b779. 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/MXF011600059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d471b1fd60925a8cfb62af62797e418b45ef936fbb5e76659c73f74ad44aa3b. 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/MXF011600061.
Aunque Me Cueste la Vida (with Eugenia León)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c639920404f3bd6b2756c792770d0dd83aeeb3f5db40578870f563ca062b22. 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/MXF011600065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbe31eb0d3f6c98a020894cfff8647df87d8563f2c458fdfbcc2d6378cf06b8. 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/MXF011600066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef59e8291944721a7d5a8f26280a5a30db8a82241095d72f136bf03c74439ff. 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/MXF011600064.
Solamente una Vez (with Guadalupe Pineda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581185ba7be95dd6eefe42e9e305dcf476f035257ac64622dc18a1b51d90b6f0. 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/MXF011600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330dd717735b58f3e344a83d9bec59b1bf99eb74a80de8e68c6b66765300f22d. 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/MXF011600070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbda8fa733b5afc4d605d8ec424e93631e3c841c0cc48972a0323e2b6513bcd. 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/MXF011600071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab536fba32823d967d7cd3fe06b8fa551ce307ab9f78446cf59ad5f41fbc6801. 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/QZMZ92148985.
Perfume de Gardenia (with Alejandro Fernández)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0678d28e857b7fe8989aa111d5f3d08397b90c3e0efebae9b3323802cf72c0d. 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/MXF149600100.
Tesoros de Colección - Las Estrellas de la Hora Azul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe764207d616efa1241a6c47a27d9228b7075b29149c56bf44f62a2950d94ef4c. 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/MXF146800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03a74b500a1a89ef747445c9e8665458aeeb1907246a2de0d42b4385faa8947. 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/MXF146400035.
Celebrando a una Leyenda, Segunda Parte (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e38845d43f2ed5ed113a62e29593093916f67418521f0b7de11f6757f5d222. 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/MXF012000059.
Grandes Éxitos de las Sonoras, Con la Más Grande, La Sonora Santanera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecec23d6dc28fff534845ef86ddae076dea154d1fdddf115671261cdacd3618. 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/MXF011300359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3038d3bdb646faca13245c4fb106b5645d78cee1ca283f697963c4a8036db91. 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/MXF011300360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1aff8d14fc76ddd7372a53f4cdaf7f84ed3a3ff5010c84b378daf0cbbd8b7d. 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/MXF011300361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c7d3ccd863d44f32f0ea9b4afb39abab1a40d09573fbed22245e6c5f727f0a. 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/MXF011300362.
Luces de Nueva York (with Cristian Castro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5a79264c7ef8c3b313bfeb6b2bc525a6b39878031d1c23f7dbe65947adce8f. 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/MXF011300363.
Que Nadie Sepa Mi Sufrir (with Natalia Lafourcade)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199ade9be592fca8a22fd340a6d2555af7d3517ae127f43a9842075fcb96b8bd. 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/MXF011300364.
No Dejes de Quererme (with Diego Verdaguer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14b3ffaf801add4376003dca227b566732257093b61867dffdb7a7fea13d661. 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/MXF011300365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb78a93a8342a5d8dd516b1a6738e5088a8d93bb72baa0738f3aecd919e7e965. 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/MXF011300366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb712dabb9147902f1aa946abb98d16b61cdb6ea1e91b3a8e785b873ba8d674. 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/MXF011300367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79212873033e143b68086b3bb0966f2856b7a116ec4e52d3beda267375c8c96. 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/MXF011300368.
El Negrito del Batey (with Johnny Ventura)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d47b8b1eb0c5e6008020fc544d55135cdd04ebec64b367f88a9e295f1b18ed. 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/MXF011300369.