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 0xdf8b8da014d31a855f1be0e83e32acccbf2ad3eb306fe134d09ecbaa42a7873f. 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/c84f5b70-1995-4d28-9ef7-133dcd33a836.json and https://artists.proofprofile.net/proofs/artist/c84f5b70-1995-4d28-9ef7-133dcd33a836.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Old School Romance (feat. Rachel Pearl & Grynn)
Old School Romance - Merk & Kremont Remix
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 0xf96413c242d9d03e80630ce86edbab5509d0b0b50020a1da568f8e6a0359082f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/UKG4Y1700051.
Old School Romance - DJ Antonio & DJ Renat Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f0d796e7b80c2183c0c5e06b10d1ee2fc185dafec5a768c010b25a43bf1ac6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/UKG4Y1700061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96413c242d9d03e80630ce86edbab5509d0b0b50020a1da568f8e6a0359082f. 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/UKG4Y1700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a95b49964f0fd386349509aee8b86ece098dd13c6a6af28b1df9bfa0a92c79. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FR9W12010298.
Out in style (Celestal Dancing Mix Edit)
Out in style - Celestal Dancing Mix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8329d5abd1ddd1d92473dac1bbde2a7481bc1f7ab0b57693cf3b31dea70d3e1. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/ES7002152305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8329d5abd1ddd1d92473dac1bbde2a7481bc1f7ab0b57693cf3b31dea70d3e1. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/ES7002152305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b78d04e4c76efac61ff27032f0a924005db77dd49a6252c0167ebab3f60d34e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FRDBD2200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21f4367cdf65dc5b195713fca8887793adb6d3e199bb2505e139f219bd116b2. 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/FR9W12420361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280e50d057e12115245279e777238ab6aafe7afb316afaf730a6a5efbaad25f8. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/FR9W12525209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a2245071dda40e92e8b3c89b0a030bc54942b5424174bfb12a8eb426311621. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/FRUM71801882.
Lounge of Love, Vol. 14 (The Acoustic Unplugged Compilation Playlist 2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7180c15bde943e1a8621f5617e680c434f2a6422c518db433d62a444882d465e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEXO52080772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f034d8139d9019f11dd754d186d19c56f01e83f29a3f87f50249449c1fa124. 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/ES7002257701.