Cesáreo Gabaráin (16 May 1936 – 30 April 1991) was a Spanish Catholic priest and composer of liturgical songs such as Pescador de hombres (Fisher of Men). He received a Gold Record award in Spain, and
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50a9093fba8e10b89cb9e30f4b9d2dd4109e0303d9a98df11c26b58905215d2. 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/957f88f0-6358-4c27-9d23-ce38d4756c75.json and https://artists.proofprofile.net/proofs/artist/957f88f0-6358-4c27-9d23-ce38d4756c75.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9159a1126301d074b10c87d216cb6f1a6084f9327235da0ae77b1f1f31978ced. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES8520900896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce96a6f19e3901e888c60d4e8d69e2fe0d99ec0ddb47ad9e441896c521164efb. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/ES8520900897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacff69a70d3460e343adda12a411ba463362f5f307aedc8b29d0a8116befbad4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:07:38Z), 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/ES8520900898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9af10e6c59baf8d64de91f2a56b87936dc37e98eb0b612d19e62c3828f750c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES8520900899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a923b732ef589303b212465271d7f90b2d6fbf5eb9f71d0987b84e01eba8ca. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ES8520900900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda13ee1e9f79a17850959fa30b582600ffa60eb5a9bcbc79fe528a2adfcbea6. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ES8520900901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f7d9f3694510bd9fb6e7f13eb0b2aabf913cd22eb51d1be7e247a177f1b3fe. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ES8520900903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d93726b66e68a12d501f4783920c9e5f588d2fa75b7d246ea9fddcf0698b4e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:04:04Z), 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/ES8520900904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81010a59d41c37790c4450941c550a14654395566c26751a7a92f9fa114988b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES8520900906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52206c9d0bc87efafe164f0b962376e09a2f7fd72c28beed61762ae8f82c7b4. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/ES8520900907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9653177ba8d2558d6ef0ae365efbc1d05c3277a2085f152d7a72e5578dae4118. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES8520900762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60082d44e403e947484dcffa5a173e5b80dd6b083a9181bd38c0f6ecebb71d40. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:22:41Z), 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/ES8520900780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3209ff1760c48f31809a5b14c9814a928507d25183db43180961add581f46f. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:01:30Z), 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/ES8520900782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d3c2d7b070375b66715c9f518894ee55c938aa20278e6d64dff3b49b61fed7. 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/USA4N1303763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6048fa35a3712866206a9f48af624f57e692e5a866079c71a56d94fad75e20e. 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/USA4N1301776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93ef2cebcf74fbf6f697ccc627e2d91d0cefa51dd52ac09b8ab65cac58ce598. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA4N1200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a2135d1be170e6ddad01523b43ba9ad14d9107909a202500e4868ec495e162. 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/USA4N1200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601559be6f15515813db5a53d7f717a6ba4487808e7a6c2e0b1071a45df42b68. 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/USA4N1200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3062ddbad189a36b3bc504376956d2613782639a36490950252084485f70add9. 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/USA4N1200866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda719f0f0b9aa3250d2d1693e0f5886425c62c6f64a4b16a95c8b0a0f99efc6. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/USA4N1200213.
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 0x0139f046d6de3e156ba1c997a7cafabba26c531d6da912ceba76b4c117e531e1. 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/USA4N1200927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfaf3549bff1baee07bd3b971f1ca17936518d028e1f33915f0877e513bc982. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USA4N1200215.
La Misa Es Una Fiesta/La Misa No Termina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9485a07b497c6136ad914941c45aef8eb7643d11a05b8c676a3ec6850dd2a068. 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/USA4N1300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80df6219df69e5feb40cdc5c61123659ce8c8ccc2e439a59a4c9ab84133b6cd6. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USA4N1300891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd0c3740cd3c2621fb072ad4c5b3194351a65044c5d8e6ca910131d0dcb3f7b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USA4N1300893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752241c748fefc78d76421501e3abbe4a4d01c07e584181419a393fb9595bd84. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USA4N1300898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852d9a8949c80cf878e4a8ca27bddd0850f84af267a91c543f352b50a670742a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USA4N1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf906501608d55489d4f78f24572d5ff0141f21f884c3d8a077ed2fbc01b3f8f. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USA4N1200994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee37d74f4db99e5b0e42be69c651e75c93c4fbdbda6b7996bb4f6f0ff280fa72. 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/USA4N1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a562811496ccd1565ab750c303336532662fec0f1c3dbac526190a02a11843a. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USA4N1200042.