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 0x51413685e3bc2b347c6afc01abff662562aa123e85ea8083ed55afa05483806e. 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/ce558e39-7e1c-45e4-8459-b9556690a210.json and https://artists.proofprofile.net/proofs/artist/ce558e39-7e1c-45e4-8459-b9556690a210.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 0x7a98cf00f7a5bb6277b631c7195686b74eff4741be48e11478d933ef3e3d712e. 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/DKFJ41800229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd343bc7205a716d3657c5e69dcf6988a663b0cf2089d78299fd786f2fef248a9. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/DKFJ41900350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581ed27d34534240b1029ec1a404de5fff1ad38ee406b5b4dcdb9c6ce086c00a. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DKFJ41900364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1297b607815f4910f26203e9286fad70720a1f4ed5d240f4bb3d3dcdfc7e16b3. 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/DKFJ41900347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb3a0fe3ff015f2a9d31b7ede80904e09c38df8997121cc2e9970fb3ba9a450. 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/DKFJ41900380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e88775cb313d30a8e17be7180af0759e73ba3cef2e80cbe0937a4be692c9990. 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/DKFJ42000408.
Party Sucks (feat. H. Kenneth) [Lilholt Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153335eb4344b821eeec374f2a1e244954deba046869d0130d620cb2f98481b6. 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/DK4YA2280301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b2553de2f9bdd2cf30a05c08541f4493f7530754619f1c21cfb17b3c76daec. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DK4YA2285801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdaf6a20bc927642552195c45351544708357fc80331bfd1b2564cb5c90a4a3b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBKQU2292686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4105f9a6725f86fce49de62986ae2a39f4cc28f6a6a72c5537a6b82eada02e. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/DK4YA2305501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a878dcc87da42bf68c999c68eecfdd5b1dc3ef047857fe459bc9ca74c2628a. 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/DK4YA2377001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87e265ded8b158ab59f48d2f6a6b74663c93f609051fe1e2944f8bae2c9cff9. 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/DK4YA2400159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8456a17c26a464516a1d40bebbe27dae26e73a136d68d1644bd321d67a698a4d. 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/DKGL52300301.
Whenever You Need Me (feat. Laura4evigt & Boye & Sigvardt) - Laura4evigt x Boye & Sigvardt remake
Whenever You Need Me (feat. Laura4evigt & Boye & Sigvardt) [Laura4evigt x Boye & Sigvardt remake]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd46c812c8dc0fca5f0ff0a2cbc85edd7ce8a08c0c77ea57adfa04a8eeaf2ade. 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/DKADG2300442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65eeb46b0693733d3a8e2a9a98d1a129b1922c288e1c9bcb7873ce1d1ba885aa. 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/DKCC52300102.