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 0x9512a1920a055d7ca48daafd1ec5ef9759a5fec274ba62ee0cba44e383e054e8. 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/5baf3eb2-a4a0-498c-a33d-d8309f6bcb14.json and https://artists.proofprofile.net/proofs/artist/5baf3eb2-a4a0-498c-a33d-d8309f6bcb14.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 0x6ba65c5ffb05ddecaa83d54a21ad85ededf71890c6fcd84381eaf9ba836fd676. 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/DECY60900091.
Don't Turn It Off - Session Victim Remix
Don't Turn It Off (Session Victim Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2361e7d2881a5d560b9b087eee82819fcaf9bc762f215c1fb1c810b2f96262. 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/DECY62300004.
Don't Turn It Off - Greg Wilson Instrumental Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db0ff46075e05beb820d4281542c9285aacccf022c01b15c2e8881b9e5e4672. 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/DECY61000049.
Mixmag Presents Jamie Jones vs. Seth Troxler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32daa5394b8f141b17a81a5e3f86260f03600cb0b40982641156817be9855f05. 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/DECY60800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38df2bcdf908e3e540418d2f3b734010cce45a1d13a7a26954421d71bf2897ff. 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/DECY60900005.
Lullaby (feat. Qzen) - Live Recording From Poorboy, '99, Detroit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7088c3bec0447af0f236cdf0e69deaf86d8ce0319f43a0099c78ebdc559cdb92. 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/US75Z0600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae3d1e1ab98fcad4ad806e09df27c6d9bc5f5d6b1a6c475e527a2ee66d676a6. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GB7RM1300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7bb93b38a5eb463df61782b3e5ccd635d6a29cf197b7db0724dad262793acf. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DECY62300003.
Don't Turn it Off - Session Victim Extended Remix
Don't Turn it Off (Session Victim & Bella Boo Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28639baf4af93ad2410d778813a1cc01a3c19d10050ff02f20273ef5cd10d2df. 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/DECY62300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7bb93b38a5eb463df61782b3e5ccd635d6a29cf197b7db0724dad262793acf. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/DECY62300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32daa5394b8f141b17a81a5e3f86260f03600cb0b40982641156817be9855f05. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DECY60800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba65c5ffb05ddecaa83d54a21ad85ededf71890c6fcd84381eaf9ba836fd676. 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/DECY60900091.
Don't Turn It Off - Greg Wilson Dub Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db0ff46075e05beb820d4281542c9285aacccf022c01b15c2e8881b9e5e4672. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DECY61000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32daa5394b8f141b17a81a5e3f86260f03600cb0b40982641156817be9855f05. 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/DECY60800011.