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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6956bad5538a754f8bdaace5608bc3f4b34bf344d6eeaaee0d0b71fbe0ea6f22. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3312e2cd-94c1-4bf2-9b72-7b0045dc0664.json and https://artists.proofprofile.net/proofs/artist/3312e2cd-94c1-4bf2-9b72-7b0045dc0664.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a1265ef02bacb3b23880e68a566252cdd8cf7b52477421d03d9cdf9aa34303. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:03:27Z), 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/GBKQU2413191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51775754b923b45ce90efb78632fcbebf088fe12278cc343666efde11f8ca250. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9W12423917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306838cc583c946167df28912dd3bece321f33ed22c111be540b5c8ea8cafb1b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR9W12434392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d15f3bb544f29da073d89138a943415d842cfef2904a260d5ed584accc2ce8. 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/FR9W12449805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543f31012cacf6e445bc9621edcdf9025f0bbf5ced0997d81dc916cbfbf84bd8. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/FR1A92405428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb15f324c125db8ff0aa2ab6bdc6877f30bfa22ba39977711a959753ffb11af0. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/FR9W12449803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce2d81b85671e5a742ccf2cebe64e69143448e6ad57b03af8f3683b2ba02027. 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/FR9W12449806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da9818e8c2a94b0f4a93e6e042fe4ad464b8d35cd0dad581774144fd9635535. 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/FR9W12502700.
The Truth (Marc Cotterell Plastik Vocal Mix)
The Truth - Marc Cotterell Plastik Vocal Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69477bddcc06bcb29f9c74dd75d42c32b17ba709fff6b5dc519a3bda7ec3e5e3. 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/FR9W12514303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ca61f5763a13bdb469618d8842d8a84b537046246f55ab1490040b3a5316b9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR9W12514301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8806fcc55327d595129babb1ed50818c9db5704935dd3becc65027b0c974460c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9W12514299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1932cf9c6c3f88577efe9bb4b5879dc66debe4f52df45b8dc12470d95ed870e3. 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/FR9W12514300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ca61f5763a13bdb469618d8842d8a84b537046246f55ab1490040b3a5316b9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR9W12514301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69477bddcc06bcb29f9c74dd75d42c32b17ba709fff6b5dc519a3bda7ec3e5e3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W12514303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0720e9d17da6e7992e656fd76a59de71c1e95597b75d10bbd5c6c88bbf31cc3. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/FR9W12519727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d5393485b43c390e2b05e4fddb08681e7e1cd599e0464e092cadd224f73cc4. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/FR9W12529348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1623a8150d74bee50f165604f60d20989e83d4fa1ea2bc4b2a910a6290e51b0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR9W12536528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb504441bdc56b42ff84a5fb807c0e331e01392d99cc218841c351e0c29809653. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:02:40Z), 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/FR9W12539945.