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 0x57b4eb8cd998414701f9b6e55a8ac1e273dd3dd75b920cfdeda371b13768500c. 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/cf4b8e0f-fe37-4a46-8751-5442b37bfa74.json and https://artists.proofprofile.net/proofs/artist/cf4b8e0f-fe37-4a46-8751-5442b37bfa74.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 0x99342bc8d8bb984af3a7dbc24dc68a3d54b3ce64dbb9d41d6ab0f14eb8da0e29. 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/FR59R1884319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5744b184e8edaa7899988ef7597e8f0ff7e1e99beb38a54aed00e9fefa3bc85. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:51:45Z), 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/FRX452055560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe182e0a84c60b11987b98acfce010c21a4292c6bc0741f68daafa1d994912fd0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRX452181004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1782888cc5899c010ce68f0b2227b0896245952dd9887af51dcdf7585e1244. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/RUA1D2258903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39a84a2f337cb244d6cd4f4abfd0c59768b85078414de353e95a21e282ddcea. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/RUA1D2258904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17071fa004e7fa80855b278182fc1ca85261cb87a9f89d917d3fcb32c63398df. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/RUA1D2258905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858732f24d4fc43844f335f102cb237d11665e485f611f560eb7036ff623620b. 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/RUA1D2258907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05eca253694ca3af3fa87ba6ee3226dc1525826bc7971144c7d5d30778cf67b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR10S2364445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a6fecb92e0853c0454d3498cda0634c4ce1d4645b20f371f4c97efc284afde. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:42:10Z), 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/RUAGT2449068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8681955e2d20f906eb0b2d83503d03ff8a24377f77fe1524252256dba58225d. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/RUA1D2535275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8063ca263cb757549c2c946430a93ae4551600dce46f39db51a504c28ba45f6b. 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/RUA1D2535276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431f6f4fd3607524b0876247974450b01bcec0fbfa251afb14a1b6a8fe6b8577. 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/RUA1D2535277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca9c30c2286e76c9c1953de59f99305c54a69e32a166250be4c17b9b836c3fe. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/RUA1D2535279.
Round 3 (vs. glebfive, 504GODLUCKWASSUP) - prod by KIDD
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e53134ffcd3fb9e6d415afda1c33ea311f8c51c0aff7cc72d033ba93e423ab. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T09:05:54Z), 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/RUAGV2514562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa621e2ba2c11f37cfd4f6d97bc0abaae15f1db03ac825674a204d74c85ff596. 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/FR2X41846242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05f4e4883cfd8f87f32123771e822bf62a6289b85a366dc4e0cac3924d412c2. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/RUA1D2264672.
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