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 0xd168757cfbe83c60d8ee2021c53152ffe4d74e84f970f1a7c2d17f29d1fdffab. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6707dad-4a83-4fe0-a9a6-d568f85c6f94.json and https://artists.proofprofile.net/proofs/artist/e6707dad-4a83-4fe0-a9a6-d568f85c6f94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Los Mejores Bailables: Huapango, Polkas, Redoba, Chotis
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 0x4cf2da74888751ad68c840600f970eb5d2b918754956ddee518c761e24e5a0ff. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1807033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098bad408f78aab1099c240b157d9878522a07df07eebff0d0f6b1b2ae2f2e24. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/US7VG1807041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7caea94088a839c9f1e147d3aee54d4147db7190998a26258a94ed5ebc433f3a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/US7VG1807042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c9f665ccb01c63d5abb53fc5d7c06a3e3b1694111ee8025ca5aaa556cda2b0. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/US7VG1807043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c85db454bbd19ae50a240c3373f60792907955521fc1808303e73a2ae6d131. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/US7VG1807044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9279ae6e64382c48f2cdc1a60075aea4c028d22403a063606599938d4ef57f6. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/US7VG1807045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fb1c8bebc92329f4400ee72b8a6b01c495aaf5101b5a246ef49b21fc63d13d. 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/US7VG1807046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7964db12a83598847f33e7c74c335cc4d7c3470bcf3bf94c31dd35b5a1405c8. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T00:05:41Z), 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/US7VG1807048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212e052c121fd57ffe6dea5945a8ef0a0e51d58d980e7c306523d29efcff6f57. 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/QZNJX2527531.
Popurrí Pa Bailar: El Chanclazo/ Nuevo León y Tamaulipas/ El Zapato y el Botín
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800fe33f2c5e9448a2cb93d36c59fdb0ecb2532d919c41ffe297f6554fd6b05f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJX2570412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360e168a6e3f2dfb3db3344172edf6d98a643db44b1c79f5ba5eed72e04a2f3f. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZNJY2526583.
El Chanclazo/ Nuevo León y Tamaulipas/ El Zapato y el Botín
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631f34b67464df0bcbdf7fad5422c5124a213e34ff5f9cb8377748d06a8093bf. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2526584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83f1c1bb5bfd868feec810f5d6ac2c4a7aaca4d04721f8e8b748f6b2b3d0bb6. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QZNJX2592946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614ce30e6b4bdbdd25c9c5dc38cfc74b63cae2b1c4ff79fd8c10733eab8b63a8. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZNJY2526585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b719394e358fcbf0004c595f69e34a5139c536f7ca8f349cbe576851ae4a782. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZNJY2526587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9da3c916db648a21d03bc71afeeeb8a9facf6c6bb25995b653923dae3b17e4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTPX2518117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa91f2985334ba0810f1ab38e569f2f1d3e31d8a96eaa564669941a79211f8df. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZTPX2518120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bea0865cf21d739d992b98105f34a1eec148a04ca15f16ba6e52ff5646d3021. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2518123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28dae2dffbd22dab7752ad8819787407cac35978695c1f1e9e5a8bdd3f8fbb4. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZTPX2518125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe431c4d7c501765327c90e5526e79e266996937e4100d0e41382312e758131b2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2518130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29ba9c713d84f5de629802ae2887e91fd62142af2106ce5dfaa3e8acb3f3e90. 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/QZDQH1816628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053969f71916e9cfd7c5960a59a89547055ff40406c858401caf9f8b76760b65. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZDQH1816636.