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 0x2885dc0a32cdc5f0b7d3bd671c0733142ed25c32b37e7fc5ad37cd7545e5dbd2. 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/6793a56c-e507-4c20-bdde-6c23d1d6ba55.json and https://artists.proofprofile.net/proofs/artist/6793a56c-e507-4c20-bdde-6c23d1d6ba55.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 0xdeb779fb84119a6fda50a943d17a3ac409aebcb6394e333ed5323fe8edfca380. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QT3EX2439176.
SEE YOU AGAIN VIP (feat. Eurohead & swedm®)
F*CK U SKRILLEX YOU THINK UR ANDY WARHOL BUT UR NOT!! <3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cdad971fdff4a52ac61df16e88ff2684bda58aba6046128734427ad018b92f. 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/USAT22501806.
SAY GOODBYE (feat. Team EZY, Varg2™ & swedm®)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a2229dae161f4514c91aeb8066544ac7b64c4e1be8aa017d2e69ea66fad06c. 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/USAT22501817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0dde940bd213304ff66657ec3274546e3f2bb3a2db51182b1765ff12e9b9f2. 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/USAT22501820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fd644a9727fc490517210ead9e3ba88e39c214214327864033cc85a0c28238. 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/USAT22501819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cc1e8f28312aec8f05c70d41de08ea793b247895a068cd559a614a8ea9bde8. 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/USAT22501824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cdad971fdff4a52ac61df16e88ff2684bda58aba6046128734427ad018b92f. 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/USAT22501806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a2229dae161f4514c91aeb8066544ac7b64c4e1be8aa017d2e69ea66fad06c. 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/USAT22501817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0dde940bd213304ff66657ec3274546e3f2bb3a2db51182b1765ff12e9b9f2. 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/USAT22501820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fd644a9727fc490517210ead9e3ba88e39c214214327864033cc85a0c28238. 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/USAT22501819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cc1e8f28312aec8f05c70d41de08ea793b247895a068cd559a614a8ea9bde8. 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/USAT22501824.