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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 0xce5241a36ad30d90b5bdecc084403692286bfb77408e55716e6f5b2c4303000e. 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/69ae3edf-e4d7-44cd-9021-6e503b75a302.json and https://artists.proofprofile.net/proofs/artist/69ae3edf-e4d7-44cd-9021-6e503b75a302.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 0xcea1c6aa5a364ffd9c7a05296d37ad134d76379f558853a543c95a1856b8a714. 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/US38Y2401132.
Blow Trees (feat. MIST, Abra Cadabra, Tunde & Wardz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c259e16fde8474172c3c0839f7c5a130f23b583234052a1fc6f4002ce84440b. 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/US38Y2311658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0adf65b32153bf4241c7e009664791041d5bb0ea7234f4d1f9f4f293ccb6b15. 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/ZZOPM2117417.
Knock Knock (Remix) [feat. HAZEY, Sneakbo, MIST, Jordan, Turner & Trillz CB]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81e909c5f228bed22a9a4b70da298e99bcbb69b9c88a23c8d8507f3d273f1e8. 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/GBAHS2200332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9501c0900f1e7c1f735fae4cb0fd70dbffc920a8f78376efb14cad405ab42200. 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/GBAHS2000997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0adf65b32153bf4241c7e009664791041d5bb0ea7234f4d1f9f4f293ccb6b15. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/ZZOPM2117417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0adf65b32153bf4241c7e009664791041d5bb0ea7234f4d1f9f4f293ccb6b15. 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/ZZOPM2117417.
Drip Drip (feat. Nines, MIST, MoStack & Mastermind)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6629a6ba28192f9407a0035926447d59589a3166a0bdcac9a2780afc5360bf3b. 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/ZZOPM2106702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6629a6ba28192f9407a0035926447d59589a3166a0bdcac9a2780afc5360bf3b. 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/ZZOPM2106702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f33b69e2c955f1649bd1a5bb018ee8304816135183846b78524bfa444c2ae53. 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/GBUM71700891.
Oh Baby (feat. bshp & Issey Cross) [MIST Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98955ad851c106a0364b745e3d5cf91b50bff246891d02a10be2c82cff6d98a7. 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/GBAHS2300229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0695090ef6ee1cc04c357ee29653bcc78bb944bd0fb64190c7b5d9b99ed469b. 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/GBAHT2000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3068f952bab97119777395333b26a45adf370a7608e81616d909e7f12d0034ed. 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/QM6MZ2430793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415e6149aabe6fde70828cbf9ba598c7ecd3c18fad0c0c32bf46216d2b8794c3. 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/GBUM72308178.
BMW - French The Kid, MIST, Bugzy Malone Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7e79ce84392399cc93001ba85d4c2a5852f5b1802d7de069116ad9e11ddc7f. 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/GBARL2200550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415e6149aabe6fde70828cbf9ba598c7ecd3c18fad0c0c32bf46216d2b8794c3. 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/GBUM72308178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4582a453a433b13e51aeebd2a4df8aad52d3a953ad4f153184b65af2e35133d9. 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/GBUM72102590.