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 0x1080a5c6d2134fb037a820aa21081d91082ee5ac3f69231c7762bcfabc12d054. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00906c70-1762-485f-a381-4d5b0bafa73c.json and https://artists.proofprofile.net/proofs/artist/00906c70-1762-485f-a381-4d5b0bafa73c.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 0x3a5fd200a5c688024b619a10b21657ab645021b604a49b8c4fc62358114de265. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:54:48Z), 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/QM4TW1598154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1eef2b8e32fa3d5d13b21760e8b4c3aa07c266a5b4e56a02149984bddcea35. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:18:03Z), 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/QM6P41440160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826ecfe5f7a29e4e316c0df7a8239ea3b3c944a2531ef270c9c30f96fbea846f. 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/QM4TW1598158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2722a273950f91b0ce3d0b1ac758b83d795c86150014461d2688b2c0cc2fbec2. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QM4TW1598160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ceb1f101f665bfc62c052447ab52ded064a73868cb6c2c855e733cff564c2a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QM4TW1598164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efeb502eafe368b616be61a778be25cf271478994cb31f1e68416dc272b582f. 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/QM4TW1598165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d93dc2126a7dd22a2f29d0953bce59d22e5663cf8e805cba59eb08c8033d9da. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:39:50Z), 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/QM4TX1770171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62ce2cd034307c6da579b2b65400cabd2083444e6881ccb8fb5b26232619133. 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/QM4TX1770172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379f98d0ed53ef67daae0f30c434f22f786e995600a028467db35d5c494f5717. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QM4TX1770175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11741015a5ce6e0bbd8de8a25fb607e7c7cff37970d6a6bdaf61e46730ec8f47. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:42:08Z), 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/QMFMF1520268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365f498408a9aaec401bc1d00cc6b718ec757bf1b41542eca36a825396857a97. 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/QM4TX1770177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916f08d224d032dec80bbd00e27b9b3e260a45b5c69f227df185b0954b1bce13. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM4TX1770178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15519b355ca36c8cd159463517fb5dfc4a133c03735b476fc506521056d38510. 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/QM7281987381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd5eda67c91177ea8fc29c34cfda577317d7ee9d3bcb22b936d2ffe65750b42. 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/QM7281987384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60c7ee43b0824512611b5c7307501d17e9c29817012cc06981c4d6cb7752873. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:11:43Z), 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/QM7281987385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90156443721466b4312a05e5bac09d5996768c14ddcaa15cfa6a4abb8d5c3a4. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QM7281987388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c57e0fd1ad97e36f17e864189c91db0bed95a8c878f2cf1016202e593a618bb. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/ES67C2300454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2209b94c8ae8123aefabf743099b05dd780db8f9ad23863bd9acb23fd6aef7b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:43:58Z), 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/ES67C2300440.
I’ve Overstayed My Welcome in Your Heart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d5bb91957d4fd1d4d62fc8f9af9a9825afb84b542f6a56e7729859adadaf08. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/ES67C2300441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0d34e3ba04b275c16e200f2cba6171992887ea0b6992245097d289c7581f86. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/ES67C2300443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815e9e1cdbd03e03326b84dd4813e18e2a6d756cd2098ecf744404b922aa7012. 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/ES67C2300444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace93b45fc4f351a5f862e3ff7b17d2f4407314a618b392c0198b461cfc0e5cc. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ES67C2300448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a14d64ff6be7136c9ddf0d77251fe7f27c4603313a18053d39303f7145f13c3. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ES67C2300451.