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 0x56ff902412924ee3e1bb85ef56cf6d030ef37fcbb61070279b5254a6bf70fc9c. 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/8f8a067d-3233-459f-b23e-648162d60158.json and https://artists.proofprofile.net/proofs/artist/8f8a067d-3233-459f-b23e-648162d60158.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fratellis (feat. toobrokeforfiji & CAN MIT ME$$R)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5e192183f2aabdd2995188f47bc6d6818cc08faf41d38fe9df80ed22c393ed. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELV42200318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1b5c68a35fb2f5618b6259cddb18833346d861e517cafb3e4a531bcd39517c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELV42300723.
Bessa (feat. Loco Candy, Sin Davis, CAN MIT ME$$R, Okfella, Souly & prodbypengg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bcfdc0241a4e518fe648dab6d2bbed072da3ecd22c0fff8763b25ba28012e0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DELV42300910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cf0b2914ae4f44e976c50b44bdd13df5b11359ff0f9d2371c34bd3acd72cc7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DELV42301108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01aa16f75ac10bef04bdfcb95b18198d8f92f440c7851bf24d582d26834ef537. 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/DELV42300742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d470d65b909bc958a0ddbfd4a4fc2c313aed6e6540c4f91e7a36a37fa7cc734. 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/DELV42300947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cf0b2914ae4f44e976c50b44bdd13df5b11359ff0f9d2371c34bd3acd72cc7. 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/DELV42301108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa622e3381eaf21f62305c568b949bcaacca95a44cc2451dbadf5b014327fb7cf. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DELV42500757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa622e3381eaf21f62305c568b949bcaacca95a44cc2451dbadf5b014327fb7cf. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/DELV42500757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f6010e5c2481e4fce6971a69d23824e2afe4ef8d3e81376e4e59d860d6da03. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:31:15Z), 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/DELV42500758.
Backstein - feat. makko, beslik, Loco Candy, Okfella & toobrokeforfiji
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6de43756d66c9318a04f661f2a1b099b9f81ec5960ace78f0215c509f6d142. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DELV42500760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4aa961d9a80f40459237bc7f7203e81944db7205842367e19780efb187e2de8. 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/DELV42500761.
Kindergarten - feat. toobrokeforfiji, beslik, Sin Davis & Okfella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed547c53100e4b73b8cb7051886018499058c6e599ceae4329027da9fd27dcc. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/DELV42500762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0d2bba3ac25ce15011c73db8c2335c190fb539dc1ceb5a37020cb481567b0b. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:38:24Z), 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/DELV42500763.
Vogue - feat. makko, beslik, toobrokeforfiji, Loco Candy & Okfella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e8b7d06fabc1d0fcf7db4724ed1b9dad4d6456210659f644fe869b46402284. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:10:25Z), 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/DELV42500764.
Jürgen Klopp - feat. makko, toobrokeforfiji, beslik & Sin Davis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd73ca03a425cd18d5730566fe77043a7049e4fee4eddc2fbfcf7bfcec6c0f59. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DELV42500767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a087d1cd04aca0b0cf3e6e0c4fd7434fa390e4d5f4d946701169041d2fd741. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DELV42500768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6924a79b7e2a58832a47ad05ccb0bf1f5f04372495ba68da0697cfaf78e6ba. 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/DELV42500769.
Zu spät im Studio - feat. makko, toobrokeforfiji, beslik, Sin Davis, Loco Candy & Okfella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22c760237e84259b9172938abb8d0b15d381993132a6571eb550340200c7920. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DELV42500770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42da816d65e12d0043e089e3edac0ce513e4609de4a22dd416c91ca36b9003b8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DELV42500759.