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 0x6e4678031d4577ad87f4e41d4cf87e75d024c389d14168d6ac4ac291a07d75a6. Chain 2 (Bitcoin): anchored in block 953783 (2026-06-15T12:24:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5c30538-18df-467d-a26a-e8f0dd9c93b1.json and https://artists.proofprofile.net/proofs/artist/d5c30538-18df-467d-a26a-e8f0dd9c93b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
17 Ft. Mac Miller (Produced by Statik Selektah)
Read In Between The Lines (Snake Bitten)
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 0xed02999f533b852184ec90df7a7febfe01f364ccc9a685b262fafaebe869cffd. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZES62562867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2061f4963e0b4e60d6d71c42ba29cd2a0d8efa2d7a61fc035115d4acdaf75209. 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/QZWFQ2350292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3634c3c6c5f9c0cb29c9a6452d45248e9e0178cf7f28daa29fccbd6bf1f8605d. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QM6P42325759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280d6f836cee1a0fabfb417929927129d0789cf94b603fe1a1323d822d276c54. 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/QM8RL2001137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd0afb5fd25394b8adb46330e173173f02a88ee266c41283977578933594ca4. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TCAES2030413.
Drunken Nights (feat. Reks, Joe Scudda & J.F.K.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6569b9bac7b504d2e85c50c0c1f6d77081c63bf3c0245b772061c2b77062047. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/US4UZ0910280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e7c47805d368f87108c0c63fbe9ece8ef198dd871ebd303556cf580904d505. 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/US4UZ0910282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fd247cfa05b1d051c535efdb4b07689560f7df75f1773b63175af6a59ecd32. 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/QZQAY2575312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec88ee45b92cb24a6dfb1b96c2381ba97e071c8821062b435445b2f2ca8fcf4. 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/US6YF1500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3fc3480b22704691ba2326e7a5ace75867ecec88c18caa2a706b292487ef9d. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/US6YF1300029.