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 0xc1b8c5af48fc1a14f773ab0d4d863166a09550f1af57be2bec05f184102e769d. 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/ff657077-abfc-49d1-8b5c-5e995931e07b.json and https://artists.proofprofile.net/proofs/artist/ff657077-abfc-49d1-8b5c-5e995931e07b.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 0x0394419c3766070afc6997724f4f99c7b02c84baa7be57bed65de532271c6799. 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/QZDQH2391555.
Popurri - Cuando Nadie Te Quiera/ Sabiendo Quien Era Yo/ Con Cartitas Y Palabras
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669310bd89585c226bde4db053f76b3f98a33c731774d1ebd415d17a05b2ebc0. 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/TCAFK2129711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49eacde2f66e84b9fc97dee270f38fd9388b8791ecd58c4e651f623281660926. 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/TCAFK2129736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd2fcfcf37fb788181756d324e7ff66f6af166023e44d5c69b8be9c438f1398. 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/TCAFK2129768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e34792a77c031d1cd3bef2e181d3573224b7df76adac42e6fc02e24066c6888. 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/TCAFK2129778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31ec2afe9488c70b5dbe2a045c064d218170e03f561ce072524034517994a61. 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/TCAFK2129783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b60f396cac80e80fd94c81870489e16f60c136549b52a085390953d28275c98. 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/TCAFK2129790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebfef1e72b9c9ebbc298b6722648a6cb865403dc8ca70f03b884c4334ff7369. 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/TCAFK2129791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127d80fd2250ef6cdb9b0a896a9c8ebc5164409a9e3bfdae796248317901f359. 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/QZDQH2393004.
Son las dos de la mañana/ Piquetes de hormiga
Banda La Indicada La Mejor De Mazatlán Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cf0f0887e55e465c49bfe1aa394e654dd11e24c22eb1db1908f7a0febaed63. 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/QZDQH2374778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5975972618e30af1e278905329c3a6ed46c4e555591c02e599f9886b434bcc64. 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/QZDQH2360155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00c9fdadd1aa12569bf1825ba37a5ffd8683ce33137f58fc5b0066da5d9493f. 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/QZDQH2269445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a8fab9a2ec404cab60f0576ecb236a874ad1a3d97b87bae92007561698678f. 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/QZDQH2269446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03ed64534981f98280f7fe1802e080d2da4faaa8a0d7fb0ace14acbcfd6a9b4. 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/QZDQH2269447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34aa34088870e7a731966519ae19afefb91f1d03c851b00790c21d4172c69b3c. 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/QZDQH2269450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7860805a877d555ba7e01f31493c3e11fedbc6f0d73cdac6d6400143382206a9. 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/QZDQH2262597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03aa39612533abc89dc9ace98e3e118eeb07f19b3032f74de2d0553ee5ac41f0. 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/QZDQH2262600.
Amigos Tuve Una Novia / El Domingo Se Casa (En Vivo)
Amigos Tuve Una Novia / El Domingo Se Casa - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952497449f7bfc64642a7de79a05b6659bf3a3f0dce9f37e7fdef727ab0c709c. 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/QZDQH2154576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafe3ad6e082a98951fd96678b60f99362c2dc9a4a80672006d9daade418dbca. 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/US3DF2171239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc868487e322d3869e8a1c85302d03398cf41caf8d4045392627544e050f793. 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/QZHN92161576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b00f8b7056a8942e7dde53236a6061133ab67cd10294e4468deb956e25b64e. 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/TCAES2067325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2945c8fe62872a017d0e7746c65628566a759edf539499fe583292bbc3be947. 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/TCAEP2090813.
Popurri de Rancheras - Cariñito de Mi Vida/ La Mesa del Rincon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e5abd4a0651ade6e7264af2e15a2706adf4016c65d476a2f35cb815607c0ba. 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/TCAEK1911459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155e771545d3a80871173b31b334fa41cb998a577a4c1674fe1019ee3cfed22a. 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/TCAEK1911470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1500432fa4872f4538c7f3aff923b6bebcb5187dcd7c4705b00f5cef3ee6bd90. 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/TCAEK1911492.
Puporri - Las Uvas/La Mesa del Rincon/La Reginita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce7f02a409d590b0b34f518a06d0c377825fef94b364dfe6e71d9f64d534c9a. 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/TCAEK1911499.
Era Cabron El Viejo/ El Rengo Del Gallo Giro/ Los Tres Gallos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3e56487d391de918e62f4d4f6025d6c697c98fe97e86a3ceb5c8beea4e1ffb. 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/TCAED1921745.
Intro - Y Por Esa Calle Vive / La Puerta Negra / Ojitos Verdes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dec742a44ace69e5c0b6f9f8c8c479f6b9392b0bedfa3b15fc3011dddfddd99. 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/TCADS1898244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de2ebbed99dd8676ad0b75299a6b1166477998104c9c69f69594803fb6457e3. 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/TCADS1898267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786f40e5ae949786667d12f490a0b93f753883e4ee94503c58b916eed01978ca. 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/QZQMB2108174.
Bien Motivado (feat. Banda La Fantastica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcddea378c986fc63d0276ebbcd1bc1012cc7d616eece7c4408b0554ac1902d4. 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/USQX92401924.