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 0x2cdbfd1024cb0d61afb26bab915086839ed2220c60e46c74fe039435b66a90cc. 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/cfe6ba08-654b-4615-a64b-cb0dcb585781.json and https://artists.proofprofile.net/proofs/artist/cfe6ba08-654b-4615-a64b-cb0dcb585781.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 0xcc80406d2d8bef4fc59b736752e23a7eea2b76539b9b87bcedeee721ad8c8e85. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES6111269405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da70d8ef0909506d10148122e8efc4e4be1a6e88d14489771cfd81c324b4f91. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES6111269406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31747760335f9087edeeacf827935e68d833cfe996925735e26b82c4762644e0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/ES6111269407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf42d378980160362baf2ffdce234469826f8b822d6dd500eb5032a130b347d. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/ES6111269408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24c14a09a2b533961f902924b04e314e043c00c1a315ab9515e8c311cc1f718. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ES6111269410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d9be186cff42531c794a31d70c4e91721e99054e83145ab6a8244cc2ae1f13. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ES6111471902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceedb2ba5369c929007d09e777edf18e063ee3cae16959770799b207a416275a. 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/ES6111471903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9382835b5ad2f41328690a6fc7ff1656092f51109f1de7c0217c11ff67aaf46. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ES6101600208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f927a77613dea12ff1d6453d7d16aadf69cb7360bc9f1de03cc11c2de6b9ec. 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/ES6101600210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8a21de7a76fdd7c3df7fda5823eceba68b79926f159a68804df0fb6d871cf3. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ES6101600211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234ce22dda3518b1032215a00d3e3252f3afa8d2d3d76c691eef18516ed6316f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ESA031901303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7aaea43282e68c9daeb2d205953beea9597e8b8237d38d86ec77b6343a0047. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/UKXN22591623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5facf835a4e26980b6c7dd1d1ca49780064c3ca50371ee05ae846c169e198f44. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UKXN22591624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58634c94961f26a569a060bb4e66ee0d01445dbe8adbe3cfdf64342b0523c4e7. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX53U2443759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf3c3702df369f5677926cfc02caeee5e5b6b02c6f0692040d98355b6b228b8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UKXN22591626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e0c05884a18198723b990c05676a79c921eb235fdc4499d0518aaa26bbdbfa. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/UKXN22591627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe77f3d64b05becca9f8fc1f00212b89ae3ca0dae996a48a7bbccca7a05ecd2e. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/UKXN22591628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1a988db613b3bf8c9dbc350ef70c0252cbc40cb3e400c0e3e2c148bda6f788. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22591629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d806cc32dcdc0b6140dedadddc56c0d88e4eb42f75cf20ce03b7ad94ed0bb9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMA22391894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af5dae415666e5030335aa6b3531cd2cbc5300f338e2d68821c8a94bb28e9c6. 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/UKXN22591630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc018cbb1c0cd589d9775c482e8cb25b8d17c16bbb03a482fa2e8ca4819888b. 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/GBMA22391895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc07893ef294bba6c17b95310440866dc54fa3eea6a736e6a37bca348528acef. 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/ES11C1900965.
Kitt y los Coches del Pasado - Sofía Cristo Remix
Kitt y los Coches del Pasado (Sofía Cristo Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffd1d4ab97fa9c0f4b6b501d7452c80b412f80327c5377431e73be262ccf527. 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/QZNJX2444884.