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 0x34dc4d08b0c1acb70d496cec38575b1b7911635e1b06c7bc29273f5ccbbc6ced. 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/fcf381c7-5ea4-43e1-a52a-77136066fb07.json and https://artists.proofprofile.net/proofs/artist/fcf381c7-5ea4-43e1-a52a-77136066fb07.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chochoły (Remixed by Enigmatic & Skarby)
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 0xee3c4be8e4c697fce0d3dd1a03e20c4749046464a3611059b25ee09811e004c4. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:08:03Z), 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/QMBZ92250339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd453bf94476c74400917fba845a1c0c14c2d0d80ed47dd57a6ddd27f3adf74dc. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:42:57Z), 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/QMFME2202138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd157e59a9badb78390e0a5c30f1d16db193c4d3d1dba719e11e2370d4eb529. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QM6N22355053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1e9556400e251913ba820b0b9e6dbeb7f66f235d1dd6817b835783c203ab8f. 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/QM6P42378676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425a871a741c723642d0fb5eac100234904bf1343d8386d5fe5738bc44465f05. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:04:07Z), 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/QM4TX2310897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9beaff1a4bd23f236aee2768d765536590711bc67db7d03f8fa2648aa238dce1. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:08:18Z), 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/QMDA72385172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b736bd85e995fdc25f78f249801b5166e8f75d1be87efdd176e42da366a581. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QM4TW2406475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5771308b4f394a4191750682636b86cd0cc6d59a25f8da2e222496b454def5b. 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/QM4TW2406476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e188075ce0702f9759b079a6575b2677dd70f67a2e6240115fa783642c4edd. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QM4TX2440364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402d909e37b88bf4cfb8149c53c84dd9be2148cfb3ab7a14af53e510760a9df1. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/QM6N22474588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01252ae3761f01b27cb34fae494eb88ca88b1267fcd31094a0844aa6bbce712c. 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/QM7282480235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf77d578ba6131c62fb33bdf704bbd20291a9d4b9b875dbcc72ff24ba9a87340. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/QMFMF2448653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b1166490b05b2baea34f5999a3dd41d52bf1eba1db7c6ea5ac689bf5c483f4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM4TW2537558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7beee3d4a26e396457f252a1a1f5708652ca069a93702fedf4955571212b4b. 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/QM6P42594322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2df0df457a9bd8480def485ce67e0157d6c72db896f24418e7e091c8962cd2e. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QM6P42575798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e82e976c4591fbdf1f84b3ae19b89ffcf3f48dd5dd54a7c4d3b58984399f57. 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/QM6MZ2538576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce1ad04c0b8c332caebaf60916215648c55458ddefc5a72ef25550e15fbbde6. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/QM6P42594285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa623f448f1fd4f0147d3fa8c87d48024a9a253e7727b6d9e2477847dd7d89668. 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/QM6P42594273.