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 0x020ef4d08696461c11c2b5537d2fdaa7d4d34f18a0025451f2b5d4dd715f8ef2. 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/ec5e7e30-b49a-4a77-8e93-b2df9975af71.json and https://artists.proofprofile.net/proofs/artist/ec5e7e30-b49a-4a77-8e93-b2df9975af71.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 0xb7d2ac3ffc14cc485e78b7cc55d90925f938a92ca8ea4a0110459d1846597c1b. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:41:27Z), 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/QZNMT2382976.
Light A Candle ( MoneySign Suede Tribute)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf04ed1105bbbfef5ccfbc60e6e464059ba1cc6be722a5d8feba32c0dc4d675d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZNMY2364036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e3954cec0dfd76d2b59594dcbb3a755af9e21d394a9073f8d4e65209b05072. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNMZ2368591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51acc1afeff740acdb56676e117560d9e2aed071a8742bb84240dd178d018578. 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/QZNMT2455930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd5dad2ce15e384cb9591c933d1e40a0162c84a260dc814dbf2abfac82bc9d4. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZTAS2471742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44e70fd3fb8596326448bedf6f0c1fa15bbc12078ec8f6f8d5edbb79556ac3d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZNMX2452495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad9a7a1bb7fb4091fd209c125be4bc487764e3a025cdff0b0383b21a02c3a62. 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/QZZ792490691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de015d90906d50d7f955aac0bedc4df59fafa111d1927886ced8a6a0924b9c9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:57:51Z), 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/QZDA52596805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6664d937c21e04460d19a464efd15422f9047c01d5b1ccbc7bb0d0281b0a8d3d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZES82529634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0da57b363df98a7b258334f5af18a3a76578f2e520d90c3322246e913ce8ee. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHN32582059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abd2539b1bf6da902c19f72dbfd801c3adf40b0693a57e0a4cfa45d79980e63. 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/QZK6L2580785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af95437a6a7bcdcdf97cb22cc85bf127684825c32bca58048c06144015b7c86. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZK6L2580786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26976eabf77c5d131b87fe6c3528eab07e393dbe9f1c65f4e264710ee89b8c29. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6Q2543134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52db14a421e19359ed2943fc1c7d44cfcd8a970f026572fb8e8258a3a9fd9b8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:28:04Z), 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/QZK6L2580787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49fe6e96c23e01073d9e18f0b625dc97980609f4c9f3499f9da777039636df6. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:27:29Z), 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/QZMER2563426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff52f178573acf79dfef3d55dcfdaa4a4e1ab60dbb8e31992093d6d61bdb5816. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:22:05Z), 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/QZNWU2520925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f8537448edb38a00eeece0d3e27867cf0f01d114bb17ffda986e2430270d68. 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/QZTB52579862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe64968f1ad2af2d51b50f60e1c9e4bce467b75b9e5eb17cffd57327450bb621. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZWFG2584279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931e650111143f84e630be8f427ca25a37fce4ff0ee34baeddf5e0c9c6bb707f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USA2P2535966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f53c5ce79aea098d1a7ace63cba10fd0b1b7ba5d0e81012b5533556506f9c2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:00:18Z), 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/QT6ED2539005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400e476e11180fb40dbf0f887a8cc44bddff163efb5453cd3d73e02a32b38feb. 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/TCAIM2478404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde26dca0c3f25840f7548820209ee5486c4394826d34795094702975abd5e545. 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/TCAIL2478484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e8e59319a36fed04441b24e490fabfcee7282d4ef575c3c482d641d57fff44. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCAIL2478490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba956c9fa8fc599ddb5cf11c92778057eb2ccb48ac64a33fa4d50f7e2fa2957. 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/TCAIL2478534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec803c0fd1671abb8b166f6d14d07ae8047eebb2b41bc0905a183dd81147b234. 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/QZTBF2418015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db48b7e02e9343c8ebc69b5c77ed5c838fb36b48add3e20f571da18229dee55. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TCAIL2478368.
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 0xe1c6c6c68f03a97ea27633974a4173e4948657cacb06acb29c16e47bbb1c3c3e. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/TCAIL2478467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497323edd23e3ec7c0247f079d4bfbde97387181f34d7d60ba6f19423631e79e. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/TCAIM2478530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ae81ed9dce5c9bb4ef16002a805af02d3119a0aa649970fc1cd52a988904ad. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZRP52476760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf7af4ea19f36e1e4d60e9b489287f2da12839fb09f58e608b5ec63925f9bd2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZDA62435292.