Banda de Música Ntra. Sra. De la Esperanza de Triana
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 0x9fba149ef5a15419a1ca4e5560138d93dcfa6319f4c599ce6cf97b4b59099b92. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2535d5e2-4fa4-4ddf-b1a8-f93296ea6088.json and https://artists.proofprofile.net/proofs/artist/2535d5e2-4fa4-4ddf-b1a8-f93296ea6088.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Virgen del Valle. Música de Semana Santa
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 0x6f3bc255a00d97ec98b2ff95257a36d92e34260dc7771d52ac162a2ac3361d74. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ES5631202149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57be103a7dab145e1c05733544df45b56d4aae395f8d5e09e47af6df8a2a1a64. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ES5631202150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d178a95317d2d4db939a93d697b25b5760c4a34bd3455879456e412d6e520b3. 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/ES5631202151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb261f25a6548dcf0b94ab09d5c40516d3d19ddfc73fe7c38d45a85cd3b4c0a1b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ES5631202152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8b67a232ae2cea2a9f76c44118d2732aa85fe6667942ba71ab082b12221394. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES5631202153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9eb32d675cb3f2eab78961132ccc0203f8439d6fc8bf661e96fe2311e0be75e. 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/ES5631202154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3986c430794e4e978529c6f25f06172ae7bf5453ddf0341ce5d75e0f9436ab8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ES5631202156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1bc1303fa6a9aaa1a3156f383730d34097e226f472b2388288f3a6dc23928a. 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/QM4TW1527258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5c6df2fede6d54aff77900e237babbe77ef5a8e2dd90a101b0b58733b0d5ed. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QM4TW1527259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cd1631c56bcd88b19903e67c47f01c84bae48c169fc6371dad2cda909e27b3. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM4TW1527261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad1e595d8a2ca66ae0c385d2ffab69b5e84e7cfff3004e4cffbd619b86e5c73. 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/QM4TW1527262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a553dbb6298a80e506ed24ac9163aaa7cbd90d168abc956da586bc0a70a716. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QM4TW1527265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99810eb6fc3b4af0d1921bf39c36d71a95550e7d38ac81d4857fd41d93f966b8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM4TW1527266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2227f057404002b4b9e98ed9b85c6f84d1d37b71c127330a82e227ae998d3793. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM4TW1527267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb5aaa7bc0bc31908188e8ee696860b1eab50b6962572daa7823824f351b54f. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/QM4TW1527268.
Procesión Domingo de Resurreción. Bandas de Música. Marchas en Semana Santa
Cuando Sonríe la Macarena en Semana Santa
Asociación Filarmónica Cultural Ntra. Sra. Del Carmen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e7c03665a09555ca22989cd5aeab1e2212c0c08391b1a625ccd52f5c044590. 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/ES5631202196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ebf81d7a4a4ff924d3fef39a9a62b1e4d4fa4231828437fea398cb3d5e285e. 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/ES5631202030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6fa82823de04214cd98b6ec47d743c6e56e789cd27c85c753f9e9045f0c904. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/ES5631202041.
Gran Antología de Música. Semana Santa en España
Asociación filarmónica Ntra. Sra. del Carmen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f19d7a012dc38bdad7ee7b434d5423b410af82a783ea88eb274e77276a9ef27. 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/ES5631202190.
Procesión Viernes Santo. Bandas de Música, Marchas en Semana Santa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb261f25a6548dcf0b94ab09d5c40516d3d19ddfc73fe7c38d45a85cd3b4c0a1b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/ES5631202152.
La Mejor Música de Procesión en Semana Santa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcf58a30e01449e46909e0f6bf9e21bf58719e788ff74bc9ca2151e8a2da13c. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/ES5631202017.
Santo Entierro Magno II. Semana Santa de Sevilla
Great Music Anthology of the Holy Week in Spain. Easter Holiday