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 0x6dd46ac56ca16390e5aeb19e58119a953fcb17f05995aca1de472f63cb1f4413. 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/f630840f-aa1b-4c2e-98b6-1f4f94695f4a.json and https://artists.proofprofile.net/proofs/artist/f630840f-aa1b-4c2e-98b6-1f4f94695f4a.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 0x4d57d2e57dd7a8c97156b66f980e8cf8bce291e3874385b7f751749684716484. 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/QMFME1548045.
A Mi Manera, Vol. 2 (Leyendas de un Desconocido)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522a55117e6ecbfe30cb1781b19f9419418d5c63c2c0d54aa08bc540a02191ac. 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/QMBZ91354479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc62633815a7e7662bfeb4c5ca03c2969c8585b591466c4281cab1c0580dc41. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMBZ91354482.
¡Vivan las Cadenas, Muera la Inteligencia!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40543288c86386caaac7214bd981afad49a62c2435914f35c3faa7a649c66498. 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/QMBZ91354484.
A Mi Manera Vol. 2 (Leyendas de un Desconocido)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349a2172b8ee73df42ead5aae07cf89349681f7a885dcdad1ec2a28b2e8fefb5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM4TX1985069.
Cualquier Noche Puede Salir el Sol - En Directo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6423ce546f866f16b8685f156907fb9d4a8c1eaf2834175769c350dcb1872ced. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QM4TX1985076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09afa9a1f4b47e53cb8970bf36f3f95085363cb1fbd4c47d9ef20816f102ef0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM4TX1985081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5de8f165df1e2d02ee434bf9287b1df55c99b6170bdc1615ad03076e78d090. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QM4TX1985083.
A Mi Manera, Vol. 4 (Que No Calle el Cantor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fec6fd82c3b39cf9bb7ed40d76ccf44d0d2d18da8da0cce848177ef1d995869. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/QM4TX1985054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ead612ee870d26db5567f60b30705c4297c54e2e9f61b5e229588dbd4044d2. 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/QM4TX1985055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80467a58886cf3e2510f04ad367985d8609f78a0d7b3e67c7fc42e207fe7d5d6. 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/QM4TX1985056.
Los Pobres No Tienen Patria - En Directo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26ab52c043685a4592ee73cc1dfd29db3c548639b5767514790b172c1d7797a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:03:20Z), 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/QM4TX1985058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bd5c98503d5fee247e9a0a0884b5dcbbc5dd9867ee792603f9944512a771fb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QM4TX1985060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d717e4b30fafc130455ecc88614212e31c38583d22d04923f51927a140a794. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:13:52Z), 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/QM4TX1985061.
A Mi Manera Vol. 4 (Que No Calle el Cantor)
A Mi Manera, Vol. 5 (La Visión de los Vencidos) (En Directo)
A Mi Manera, Vol. 5 (La Visión de los Vencidos) [En Directo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7f4789555f493ce85583894c29c72d0429245eb3a6c93ffe6f5665f72a9e25. 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/ES31E2302375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cc999ff7c9e9915aa5abf4acadd9d480a77be401eba447eff9de7f28cea3ed. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:12:04Z), 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/ES31E2302377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa583fdea45ba808a60cdc7b81e92756ef63a27e08359269f721cfa46676819. 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/ES31E2302379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af3277f186c09f918c28e62e801fd10a91999095e2ff307fadc24b28bd925af. 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/ES31E2302384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6243c2f91fcc01ca802ffc3ffccd250accf427e0e84bdda5d5fed199490d7a7e. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/ES31E2302383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74043506af25153bfe35420306b2543ed8530641321a0c1069a3c3ea2943cf6. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ES31E2302391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f4c23508df31c6fd8e2660df946d5fc1494b5af279f7e0c346b13678e48314. 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/ES31E2305550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd45b283aa89c709980a65ef19eb36be9d03da89501acb2b28ba65232b12dbf. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM4TW1944830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24105eba516b361edc1fadd4127042d2fb558b272343013c982191b77115caf9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ES31E2305551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62da7a850233de963fd4cd3dc52d81519ab928ac09c382064d099c02facc640. 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/ES31E2305553.