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 0x113ae534f371bbcaab7e57b737bdc220bbdcc45078cfffb7b40d04393178f981. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ba36266-5857-4305-b39f-723f21066f7a.json and https://artists.proofprofile.net/proofs/artist/3ba36266-5857-4305-b39f-723f21066f7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fiesteros Vol. 2. Música de Guatemala para los Latinos (En Vivo)
Mix Gaitas: Caña Dulce / Por un Caminito / La Iguana - En Vivo
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 0xe4042f0ccfc9b6b052465826d953b4d35d67e0cceaf06ab68c9a5d97c369c4c0. 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/GTA011600254.
Mix Cumbias 4: Ay Chave / La Bamba - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82b80a062a8134513e8312f1a2cde300e8324cc2e74bb0aa2a3fbb55b609ee7. 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/GTA011600261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669af8daccd331b31053f48451cc0a154fab448dca0ba87002720d17edb5e7ff. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GTA011600263.
Mix Quebraditas 3: Soltero y Con Dinero / El Tucanazo / La Chona - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5018f265600461effe03096907c48d1020d09659dbe6409832937ba76fa239a7. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GTA011600245.
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
Mix Chayito: La Cumbia de Chayito / Playas del Lago de Atitlan - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4682ba0c59c26507ded7057e2bb793890a109a2880a168f94af1e3b33533e6. 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/GTA011600248.
Mix Rancheras 3: De Paisano a Paisano / La Ley del Monte / No Me Sé Rajar / Le Hace Falta un Beso - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dd49b6156e5504dfd53e133c4bb3ffbf6fa68585b06482bde1b89390449010. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GTA011600250.
Angeles Mix: Amor Secreto / 17 Años - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974ed24b023b7b559ecdbdb85b45d9b693be541b7b450e0755722f10a3305af2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GTA011600257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa649b680c43c0b144321c1afbc36522708ceaf4d749447b131950911c4e1bd7. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GTA011600259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9587ad2028b65d4ac0aa059a825e57f2c0d9843d16b358ffdb68370a7f70d90b. 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/GTA011600260.
Tropicaleros Vol. 1. Música de Guatemala para los Latinos (En Vivo)
Mix Cumbia 2: Todo Me Gusta de Tí / No Se Acaba el Amor / Mil Horas - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cd88a626d117c9f0f8ef1db9e73cba2cf165d10d2a90bb19a49ce399f7f029. 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/GTA011501999.
Mix Quebraditas 2: La Luz / El Serrucho - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84946d71f23aaefcc472230720b5a221641550a3ccf539b92e81d418706fced. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GTA011502003.
Mix Rancheras 2: No Compro Amores / El Puente Roto - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b487f669541db03fd7d520b7b504ab72e7805c34a71053dbd9c65819ef2f959. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GTA011502006.
Mix Fidel Funes: Flor de Capomo / Amor a la Ligera / El Asesino - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8aaf961d140eeb0cccc9f4f791455ae9d01a8a484626abeee88cf715fa4dc75. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GTA011502008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302442c49970e06288cf35b07d903a6ae9307be92040c6d93a320aaa62f4af38. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GTA011502002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd96766829bf5c62cc28c753bd94949b3101dc24e572fe9e593cdbdb900157b. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GTA011502005.
Mix Cumbias 3: Que Levanten la Mano los Borrachos / Pela Su Mazorca - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8320498981ea57e34667b5b37e415893ce19ff9ca836d50137a6ea644002495. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/GTA011502011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f745831f51726010dd363b6b21a0ca80e481eae89f3aff2a2fc48fef08f8bba. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GTA011502013.