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 0xe19c77c86bc8e85f90ad660bfb1e8daf8d1fc682cc838bd18d8a581e089c8f3f. 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/337cf344-dc66-4deb-a70d-685237010ece.json and https://artists.proofprofile.net/proofs/artist/337cf344-dc66-4deb-a70d-685237010ece.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Las Rancheritas No. 10. Música de Guatemala para los Latinos
Fuerza Total de Cumbias: Picky / Despacito
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 0xfca876f35328311b525d134e20863066174580df73fdbe7e876e41c1aa34735c. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA011701748 — a six-check JSON result.
Fuerza Total Vente Pa Ca: Vente Pa ' Ca / La Bicicleta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3f35060fb118679eae3372f95ee2f33e11ab7924a4b88be4c747e0b6aa241c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA011701752 — a six-check JSON result.
Fuerza Total Adios Amor: Me Emborracharé / Adiós Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550c5c059c67cb67faa340b2bad3df7806878367457f92215eda083b98588e81. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA011701754 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4026f91f438164368561af64690a1d2dad828f5eb60e0fcab06c63a6baa4cb48. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA011701758 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f898083a2084d994108ccb1c42908a862e19af9961b2f9d8301c9fc50153a36. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA011701759 — a six-check JSON result.
Las Rancheritas No. 11. Música de Guatemala para los Latinos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98cde4b41963a708e1c053f10f954bb7fc982b4d15e5a545be1d4f46ea50ab1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA011801995 — a six-check JSON result.
Fuerza Total de Cumbia Romantica: El Color de Tus Ojos / Desvelado / Te Amo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1afc8c592bde7e7130af0478c37d09f8d4d081c5df8869e881b2ec7cd9dff09. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA011801997 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b82e1404f86be66c452677e860fbf2323023764a687bd3e962ba381451ffdb. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA011802001 — a six-check JSON result.
Sentimiento. Música de Guatemala para los Latinos
Omenanaje a la Asociación 15 de Octubre (La Comadre Ana Uz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc52d94674382b241e97113f4c992b713905cda4b46822f09d7ba85f68b4785. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012102527 — a six-check JSON result.
Corrido de los Hermanos Baten en las Ventanas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda19d13550232a12f8e3b4f44d1bbd5d5a195c4d6227ba02297af9da23ee6232. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012102534 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b11b372a824717b805473e6e36f66f025b486676a434e158e1a273279c780aa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012102535 — a six-check JSON result.
Nuestro Tequilazo. Música de Guatemala para los Latinos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fe3c33c5e0a158d8dfa9636c6751245222605d3fb4a8c445eb6b0d884dc2dd. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012102490 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031769a07d806b537dd31a89e6e26748e154c7fcf6a8495a7fc4cb1c5f73ffcb. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012102491 — a six-check JSON result.
Tequilazo 1: Aprendiste a Volar / Una Página Más / Me Bebí Tu Recuerdo / Relación Clandestina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab137eaa74f8630b397ffc3f3ba4495732efb3b0b171e47c7b9fa2259ba361dc. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012102492 — a six-check JSON result.
Fuerza Total de Cumbias 3: María Elena / Ya Te Fuiste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25fde2ff3bd908bf426befd0ee255596c8f3158819e26d9b94d138cda0e3248. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012102496 — a six-check JSON result.
Fuerza Total de Cumbia Romántica: Como Mirarte / Me Estoy Enamorando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edf2a2cbb1152b94bf81b0fe509d834a8fd154aecb884eebc13b5c0a1a611c9. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012102500 — a six-check JSON result.
Fuerza Total de Cumbias 4: Nadie Sabe Lo Que Tiene / Palabras Tristes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958953e25f3f035e22d5995f5c1a34d3ce4fbb149b575f65e3af15fe1d74a479. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012102504 — a six-check JSON result.
Fuerza Total Grupera: Dos Mujeres y un Camino / Quiéreme Como Te Quiero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0baf122d12e6efb3a54917f1717a3275902937331b1b1bdf02b5461fb0743097. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012102506 — a six-check JSON result.
Totalmente Inmortal, Vol. 1. Música de Guatemala para los Latinos (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71b759df816b64f3ff800924c54ca4d6ede5bd37bb8a9476648779c0517953c. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012200798 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe899386d121488893f6e51d3cd168c13fccdc4008120cfea28161c43ed021c0e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012200803 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b5940393c8bdeda45275e2743c4403b785fd558a213ad0f202eb53ef52de80. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012200810 — a six-check JSON result.
La Fuerza Total, Vol. 2. Música de Guatemala para los Latinos (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349340158d1bf530165ead19beac8cef46308502d01562682aa4283e57933784. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012300501 — a six-check JSON result.
Fuerza Total de Cumbias 3: Maria Elena / Ya Te Fuiste - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4403dab6c743e0a035a48a434a896a64d7878779569ccc56aafaa112a8c1d1c5. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012300503 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2255f4dd1c5fb01169f2da583929cebc013a460f316501b294b746cdb65603df. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012300506 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b247af67ab0f4f5eb24ff7dd998202f3880acdd569c1114544d4a9f3c443a5. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012300507 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9404cc5382f0f5486aec2d90f649fd5df8d64c3548af124ee6ea35f7939e97. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012300511 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4b73173c7c17aba2af3928c3c61eb50fc6e738e56d5bff5a3b0687d0cd57af. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012300512 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1174a516ca52199bc912d649295598a1704e670997a6a113c48d764bb3b343db. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012300513 — a six-check JSON result.
Fuerza Total Feliz Feliz: Feliz Feliz / Mary La Orgullosa - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13ff93833c84ed8f622f05b0615ffd41c4589d86b19956f45202b9e70f37cbe. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012300514 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9659945cb67e3361ac3dfb1dd87a8eed46f320e7668a0898dcc7800f5a7a0826. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GTA012300520 — a six-check JSON result.