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 0xcc575c865776e56def1472a2f35e43f48e770d64869b52dcb26fbe02a966163e. 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/86c35ce4-59c0-471f-9a80-b8a5ab0ea507.json and https://artists.proofprofile.net/proofs/artist/86c35ce4-59c0-471f-9a80-b8a5ab0ea507.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 0xf8708f382c5188106f8c0bef9926c6b78f461ba566195f7b33e9d9a67f8fbb9a. 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/ES5701700905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098b77c38cdbb5a41001712f2ad5316796d34f215143ae4335a28d926cb4e857. 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/ES5701700972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daba0b9cda0cb543909130877f59b827c6b80cbe501c309d5b3724e1d559486. 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/ES5701701031.
Across The Universe (Operación Triunfo 2017)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5cb65335bed91987116091cb03f9cf02b14ac2523d4fbe131fbf4e05cefbd5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/ES5701701250.
Love On The Brain (Operación Triunfo 2017)
Te Recuerdo Amanda (Operación Triunfo 2017)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764bd2932a7615ad3341cf7e45da2571d727020b2d5398778f3b4c3b82f3c016. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ES5701800064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34824ea7377bcdbebaba6ab88c5d85600f106abd7d8d3df145610974e1bbd4a4. 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/ES5701800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac00a0cf9fa83d1108930f35af87eea0eb39ebb8f4442823ab4096311ce0815. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/ES5701800075.
Todo Mi Amor Eres Tú (I Just Can't Stop Loving You)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201a69cdd40655996aace51257a171203bd8601e1fa88a541b2bbd4411790927. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES5701800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1c7ea30e28129a9b7283e9dcd1b690031c27c6d86c42d80ec45202b560c8d2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES5701800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7287f6fc751f60734b62ae380d07e48c90ea2ea5118fd121a33b85b17497f4e4. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/ES5701701257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7afc17e87841642cce4290ca43ad5247a51e76b8265d32965916eecfb4e9a51. 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/ES5701701131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daba0b9cda0cb543909130877f59b827c6b80cbe501c309d5b3724e1d559486. 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/ES5701701031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bc8443d56c64d26736f3d0ea38755b0456f32e352787c4d98fbadbfa37aff7. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES5701700922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb64699640685d958b02407034f1bca0fd7d2b00812b596a6749528552d7e909. Chain 2 (Bitcoin): anchored in block 958399 (2026-07-17T10:39:51Z), 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/ES5701700883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea98df6d47e2b11193aebb10f836a46297521045a4ccb61f48856b47f33abfb. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/ES5701700870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30ecb881d3b8c691be8a9b7da66260a785c5eac92d6fe47cb9479111786479f. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/ES5701800375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1525bfda2a31efb84bad799e3acc8a588c62344b161d8cedc202ac3c21db8234. 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/ES5701900500.
Cosas interesantes para decir (En directo en el estudio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ceb486680b539a1d4f5714e20adea6a59ebfafb32e8ae54b80f5fd2b5b63ef. 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/ES5702200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931d03a0df813865e1f32e97ac7b6b4b8c53e3b6917546f681715efead242840. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/ES1702200177.
Más De La Mitad (Canción original de la película “No Mires A Los Ojos”)
Malos Tiempos Para La Lírica (Canción de la película “Mañana Es Hoy”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1c7ea30e28129a9b7283e9dcd1b690031c27c6d86c42d80ec45202b560c8d2. 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/ES5701800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bc8443d56c64d26736f3d0ea38755b0456f32e352787c4d98fbadbfa37aff7. 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/ES5701700922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5297b935552120050c927077e409cc63f716330b28a780398ce36f6e854a253. 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/ES5701900471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe33434bf4282dcb9f69429f08620e176889275a3ce1d0f9176633e098f32437. 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/ES5152001294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0f54387b41211bc85d05b283a32b1d85d04075da0ff5a6de1af25435d227ae. 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/ES66S2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5297b935552120050c927077e409cc63f716330b28a780398ce36f6e854a253. 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/ES5701900471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059dca081aad4438289f20ea40fd3bbb679e8d8ff1e953fd1f8f5e08d9cc1035. 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/ES5701701188.