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 0xa86433f1a49234187301f7b37546bae438fa44fa3d72793c9c3d397cef8416e5. 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/61695122-a52b-4d3f-a607-5b7f8dbbd147.json and https://artists.proofprofile.net/proofs/artist/61695122-a52b-4d3f-a607-5b7f8dbbd147.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 0x47209ff736026a9477d7964985250744f8ae76b018de54a0be75a8cccbb70733. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/FR10S1746359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b41893303cad9371ee6388919c7578f1c78828b262eba52377cbd8584f2de0f. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:35:17Z), 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/GBARL1701495.
When It Breaks (feat. Lonestate) [Denney Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e8e690da8029007d403375ede38500d402db2617fba5a0753ef9822710184a. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/GBJAJ1902703.
Crank It (feat. Nadia Rose) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf199238a55b58637475497db7d4ff0ff716fc4ebb3193f87fbc2fb54e436432. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBCEN1602579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156dce7bb1bf93c1182d2e8222655b7f0a82b20b4209927d7b24030373090f91. 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/GBJAJ2001051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d93b66f96005991248b5a57d0c31e9961f5398661583d832edbea64f436b09a. 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/NOG841706030.
Crank It (feat. Nadia Rose) - Extended Mix
Crank It (Woah!) [Remixes] - EP (feat. Nadia Rose)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f851785a1d6415125b97b3bd90a76b7dea06253017a8b67b3199b1ee9bdd592. 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/GBCEN1602824.
Crank It (Woah!) [Remixes] (feat. Nadia Rose)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823d1daf24c959e6d8d1f3d48d1a0f4f21d559222156ad8623aad2292684fbc4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR10S1625934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf199238a55b58637475497db7d4ff0ff716fc4ebb3193f87fbc2fb54e436432. 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/GBCEN1602579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97547554ac1afaef56afa50303bb4c0a7aff5e81f65c04ba350ecf1e88cb2f8e. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/GBARL1800812.
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 0xcc0d1cf5b9705f22c2ebf01a997eafa14d550b8292a8d36d37e6b0d1c1df2f06. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/DK4YA1700807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc28d998f69315ab46ccea633bde30b7a5b681d07f3f268999afa2739bc15d5. 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/GBARL1601502.
Crank It (feat. Nadia Rose) - Toddla T & Coco Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280dec9589e2d76e27533af101422bd06dc5b84b33de876b0328101e5bdd7e36. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBCEN1602718.
Crank It (feat. Nadia Rose) - FTSE Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b89f1bad9db284777778adf037a50c0e2504900754c9547eb935f3d9035b3f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBCEN1602822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe95ac297dd33edfe994945c1c5cf01ba9aff9c0bba05e636e50e21714b05ed. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBCEN1602823.