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 0xdf01a4cd2288946bd4ab3a1933f32a8a326694243e71d7d755597ab8140c86dd. 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/fc2db697-2230-4306-8f17-faa30988bf89.json and https://artists.proofprofile.net/proofs/artist/fc2db697-2230-4306-8f17-faa30988bf89.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 0x45a5a62f54e0150273a056b7c3b044727f5c05392525ed083b1393a4d7e587b8. 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/SE6XX2178311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82414c87e29eed69e21ed755a622055cb81ae64ac71d1ad97493641a50bb3a73. 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/USLZJ2448629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e2b084e2869e2b367d3dc27963fbdfbf50d11347c6ddc1d5a0c8e80b07e2ea. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWV32450099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc2d55fb2a640d59036c456203a54c51edad3d94de07cbbeea0e7a4cf36ccc0. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZWV32478245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad70df334082842d4939e9db149645fcdcf576f3377e7708752fb1da295bf0a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZZ7S2441376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78fe2beec5d80ecfae05551fa792ef689652915569b982da41ea69c85dfa72b. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZZ7V2429603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8383b3dc532771068c3bccaf6991ee2689f7433ea14760b7cefd6b584c31ae9d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZDA42549010.
Fourle Mas que tribal (Frank'Moran Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb736fe49be3d093bc6f413d8497f5c02fba0ed3bbe32152a222146cc6ce1989f. 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/QZHN52513530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9e2e5828014949fcb9b6074ad507fdec1bcf0bad8f0d40042e45541bcf9966. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZHN52513518.
Vamos a abusar (G ice Remix Special Version)
Vamos a abusar - G ice Remix Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd137de7446dcfd5004015aece5cab8cfacffecba37b3fcd2093a5c3aa769897f. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZK6H2541065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34004818d6923716bdc5357035244707651d9f2e88e404779c566661139a0cda. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZNWQ2580274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3273c0b6bf4cb07e9d88d62813f6865b15c6adfe8f833a47716e184f48dd769. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAT2537842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb056585debac8ef08816bdace1d9e6508b34ec0e833f770dd0571fa9bb6ea082. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZZ772565116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261ee32d2258881d0aa1d08af74b6fd0cfa13afcc9e4586c573f9ec262a9acaa. 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/QT6E52504685.