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 0x3950f27d4382ed1fb587bc1a5980161cb96da3c042e485e2564aab511a409b57. 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/97770f5a-a9bc-4f42-b6a3-bff67ca165ee.json and https://artists.proofprofile.net/proofs/artist/97770f5a-a9bc-4f42-b6a3-bff67ca165ee.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 0x479ee893b1f5d4408733fc357c168582834ac07a063c326d2341dc766cf5e682. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM4TW2564213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689dd0f8546e41ea6f6218ea674107182e4d17664b213715aab1422c10e3ae45. 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/USASN0700425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f64412eb6adfcb49d8e3ae14999b3fac99d678ead535d8b2fca5e7bced4f349. 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/USASN0902295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e73d76d76943e41c0a8da716b05adaedb07c24224b43f02d09e4392b830908. 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/USASN0902299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc915570c21bcde488fc5ab4f50a386f754390e5ccff6b4acfed24439920aa913. 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/USASN0902302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25d9ae301c579351bc14a656e54502a65affd0c20e4658c7639ad2b405f97b7. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USASN1101881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49addf30fc369bc8228a34a235755977e34ba003b296d0129dfae4f6b1c9774. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USASN1101883.
Palabra de Borracho - XV Aniversario (En Vivo)
Palabra de Borracho - XV Aniversario - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec93b7a9d51b977b7679c6a9d97a83e47f420eaa5ef8682ed61c61c38bd18b9. 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/MX2972001971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e9bdae8260154438cef4aa1b540682e0da6ea9c3885a1c792ba085d82e12e7. 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/MX2971501061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cd1dd49d0f122ac4d21faab32d0805f0f77242281f786539371fb230e60a70. 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/MX2971100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8eb0da8afc2b95dd42cbab4ca99c7f2f20317eef2f8ce337bc063bfe152afe0. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/MX2971200394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f9655c4619549368452a2c4f9c3735a2d2503d572a08bc9ed7c27a3a4c1bbe. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/MX2971200396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826f8c84be2793c2a127158db93f72c49b9b0702d2e2574f5f7e6abd818445e7. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/MX2971400923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d350b116ab01ddbdcc026b561322d027d1adb44339f4c2dbc42103e6a03e30. 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/MX2971400925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc359c926f301563544bee85e46183f68df37ef66433ede5f11408dd97be55b6a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MX2972020037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdae19114b9927841131bc5a66b249a3f44b1092af7ed68f405155bb86a1ccf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MX2972120052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc03867f533ef1d7b7f49dbcf422319dce28ac70887cacd584b1767e36d62bd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MX2972001975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981ce4e6c60c75f6bb125b67414db9ddac7432dd189a635ef0f9e19adf029581. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/MX2972001974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9e7cbf725c879e77febc72813b0f6f02b74a3591b1bea316cf427b9b103f05. 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/MX2972001973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc735c863f46b484be717e6c24d921a267a806519fa88a8cedeb5de288020982b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/MX2971100356.