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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f62d5b4b04c0b23f0434f913ff07fcc904e1c2458d85dc09341ef4f59054dfc. 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/89cb9acb-8a0d-4c22-8bc3-eafc3c1d0f24.json and https://artists.proofprofile.net/proofs/artist/89cb9acb-8a0d-4c22-8bc3-eafc3c1d0f24.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be091d751222310bd00c1f00a15fce33b67e0ee347dd39e770fac75290971a2. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/ROCMA1711066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708f5cd8c14b5abdf26197ae9875bab0d6627c32092699ff9f8fba508bae9d98. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ROCMA1711145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd246b540e3944859f9716e99b4d421437a2d68be5b0ff524cf5dc5e804cce2e. 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/ROCMA1811373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9e2c8f4cd2e5706e5b58385e149452ba1ab79ee51a740215f4dedcd7cc9a9e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/ROCMA1911782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc188156d7a8e6282bc821542b95389d2cb31bdbe794958455c9a79e5c68bc946. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/ROCMA1911922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdcb6e54ff53f1c320b176c1c27d234332ed6c9d8be9a5f496574e09ec78a82. 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/ROCMA1911946.
Lacatul si femeia - Adrian Funk X OLiX Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d3fc0574141c242d0ac489a0d3e0c7fc770fb6b71674e40c077648cbe33d52. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/ROCMA2012067.
Lacătul Și Femeia (Elemer & Joylin Extended Remix)
Lacătul Și Femeia (Elemer & Joylin Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa557ce3f3c06a4c9bf5bd329486d3d0d1dce5458e5f1f03b9c7f3968e93cf2a2. 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/ROCMA2112788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b500ccfbad522831c5620dc70fdc44e7ad5545ccb4cc025f618aa76489c7ea. 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/ES63D2200020.
Ești frumoasă (Adrian Funk X OLiX Remix)
Ești frumoasă (DJ Mephisto & DJ Dr1ve Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14c3e09044bf903b796b61394aee5b56f7e6cfed71257cc10b62ba1b0ad887f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM7282393298.
Romanță cu parfum (Victor Stan & Dj Andaro Remix)
Romanță cu parfum (Adrian Funk X OLiX Remix)
Buzele tale (Sloupi & DJ Jonnessey Remix)
Buzele tale (Sloupi & DJ Jonnessey Remix Extended)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb63467fedb175bda93b0dbbe080fa5827c831667bfbd729c1b050783aea80b. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/ROCMA2513663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b454876dc3f950d54f55205b4894ce3b617d00c6c512bc86816be554917fed5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ROCMA2513715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15996806ba9acb720555be17656eadfff1399d668e48b0d0648f0e468c543e3. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ES63D2200025.