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 0xbfd7326e047bd2ba13d069986430eab09fbd93f5f7bbc720b4f4543a965eb366. 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/85831ea5-5b5e-48b1-9279-967ac7a9c497.json and https://artists.proofprofile.net/proofs/artist/85831ea5-5b5e-48b1-9279-967ac7a9c497.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 0x974202094579111a3c0b7c06395583912fab673d170d1776ccf65bbd63fdfb3a. 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/DEKS32100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55289d92161d51113728f62651ebf2078ef59ed68ae89d6c8f75f87e8713475a. 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/FRX872397570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb5b030ea43132197d92074160971b9acb5319c1ecb91fe621fbb5bfe69d118. 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/QZTAW2307757.
Glaube es ist Liebe - Live Techno Bootleg Remix
Glaube es ist Liebe (Live Techno Bootleg Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843cdadf262a9754be5002fe8fcfad674080556e06ae3994b8a0a014eabf9597. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRX282202083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6e32dfb67727ddd3a549d24d8d0dc234b9c453dbae8f53cbed477b0fd534bf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEKS32100177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53f2e2234ce3afeef92032457b32c42828ebcdd4935705fd32136c484770d88. 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/DEKS32100121.
Saufen aufm Spielplatz - Moestwanted Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f9a2f09917aea392484fe6b0aea5238e3d73ccea46a0816eeb70405c767145. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRX202215925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53f2e2234ce3afeef92032457b32c42828ebcdd4935705fd32136c484770d88. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEKS32100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d38fff7a90cec94c57411f0ddff9a75b1a3091a8523ae58aebcd49a9a788474. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DEKS32000186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308f4973d6e2a0e4705ff79737f1f927289e8eeb1a87798e8370e76c78526a3b. 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/QM4TW2358236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718e2e80244eb65b24db2cb10cc110cd1a69678ca3ce3760460e783310166f0b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMFME2262321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df123ab9d1612f37095e486936a1dd4aa72c7120a301a69c2d491173715af48. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM4TW2358141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718e2e80244eb65b24db2cb10cc110cd1a69678ca3ce3760460e783310166f0b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME2262321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308f4973d6e2a0e4705ff79737f1f927289e8eeb1a87798e8370e76c78526a3b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM4TW2358236.