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 0xb0d12c78fd2a9ef0f0e59ccab176fd30236c6e22cb7cc140050ff90fda9fbca6. 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/1f7c95d3-c57b-43a2-bb19-b2c23c657ef3.json and https://artists.proofprofile.net/proofs/artist/1f7c95d3-c57b-43a2-bb19-b2c23c657ef3.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 0x4d3e9ee445d1a7fb7f1d3ba904982b2cbf70d2fb7c1bee0a33482963b7b35d31. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/FR2X41520199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7574e53ae57a011d4afe08823dfdb64bf8efd7df0a5366819cef4be6e19c0c. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/FR2X41520200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec9bfa083e5814ab8b85fde9201feeeecbccd15734fc51a84099a46bfdc0b93. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X41520203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5beb4a328f41fa866d018960a386b32ab4e3179a8a713c9a330e1fa25bcb0d1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X41520206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf996a9d8b2f2f3ef0e688684ea4ef62c23bb00f09a2d2aecacbcd70f22094a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/FR2X41520188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778b451489d0ea1adec3355db4868e4d2227be9aaa597d3f04b4cb20e734c588. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X41520190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a4248dbe9a0ab0ef3d94dd5e5b5abb731e174b8e59031dc4ae0d3297856b3f. 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/FR2X41520191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e027661a6d46350d2f965ba4ce9e4643daee66b9170e1765127f8e34750d11e. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/FR2X41520193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fad4a3b4685561036e9029c3ad5e5f614cea32cc18ec98fe34ec9f5b139338. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X41520422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9b9c1b11ecf7329c1ea64cb40a5b74028f4bf517ab8c4977f5273486630bd4. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/FRX201643113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f615aaaa0a0b7f6a6d1153cb77f3a6eefa3e9f1a778375229be2cd156d167e4. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/FRX201643114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282ab4ba5300454df9a5a723b6ca39c2700f544a0902ce3cc8935186b9daa1fa. 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/FRX201643115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f28994ccc52f346c7ea7312a50c0a96a5356c7c9cd6d6e4634452f0a8b2fa5d. 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/FRX201643116.
Rezagado: Historia Descartada de Los Mil Jinetes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d170abd1d321747a7ef0f77766cde58f556b3cc80d7bc34a226903e35fff05d. 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/ART0G1806749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe577f69701caae04d7de3698706d7760a9dd73c8ba93aa60da6d5d2780109e43. 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/ART0G1808364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c9f8e383aa0a047678a55bb2124112ff92c4d625ba39da843652f75e01bfe5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ART0G1809093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593702aef8e8629cc68429a9ae9a30e0e6300bbf8592b211c1a42ebc2b5ee011. 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/ARIXB2102352.
Donde poder volver, Los Mil Jinetes en Radio Madero 19/10/13