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 0x96856b17af45c56f5a40dde399884c29d46082a375fa262e20152c7b7347ea91. 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/0e3b4687-586e-4451-a566-53ff6b004c3f.json and https://artists.proofprofile.net/proofs/artist/0e3b4687-586e-4451-a566-53ff6b004c3f.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 0x26701683ccc532440a51393bc47e5acf2db899f840a640804212fbc6e0956a9b. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:06:09Z), 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/GBDMT1100189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e32582a75a664daf52a043493650d0e9cf92a10b1fcf709915ef80f4ed6270c. 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/GBDMT1100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c004a82538af86823892aedf6b6d374f9c17ab240757db4c2acbf53f232c1dc. 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/GBDMT1100198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0ddb4f90511659c411eee641309d8822e07d7c628f10b28ae332a055cf9897. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBDMT1100206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc75925baca84c04e5a974ba2515abbea5fb482fd1499f80805728601a0d8ec. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBDMT1100207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea77318dc42db4f4dbc6970e7caad04f751065477eadbe03145aacf39b4d758. 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/GBDMT1100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61431149b70da3cd0027bce442122fc2e002ae9879833023cc97039ba5b5848. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBDMT1100330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b28bf44b38017bad6970eedb3a71564e196d0db7da15ca53cb4abb1ed79998. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:06:00Z), 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/GBDMT1100460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b99d04f6a97d3c0f7bc179fa2b4491566b437e66f2e140caa656c0f6a239acf. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:04:32Z), 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/GBDMT1100461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0826a6834352a77472518569a5e51c20908a6fe44eebbffede64b75a0e5162. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/GBDMT1100462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d8eca7b0b3ceb5177c4e6b29735b66a6fd7b75fe6fbec72fb9106e981839ce. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBDMT1100463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6f438f38170e6c8cdaffe8d7fe6a40d9a8b3a769772f86d107a680ab54f60b. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/GBDMT1100465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ee069a9064d7d903d566373e139cb2017f4112d1bee1d2955807800fc52bd8. 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/GBDMT1100232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcba5ede0eda90aadccf2d027f5ddeb67c754db91742d3253553898c2421b778. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBDMT1200269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f43cc08b13e268820cd2022ca1241856eb30110fea51a3d3c0715f446870d0. 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/GBDMT1200332.
I Dreamed A Dream (a Les Miserables tribute)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fee1c58d6e200ebdb3dd9f722ab934d0c5fba6de911536c2eda7d92d6be0823. 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/GBDMT1300879.