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 0x75f48affec2cf4df4a46372553843ce83496cd6bb0461813698837c42f1c287b. 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/88630099-56e0-480f-b112-d1673f676dbe.json and https://artists.proofprofile.net/proofs/artist/88630099-56e0-480f-b112-d1673f676dbe.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 0x95d95800e931895014ef24bcc6996ff6966bf58c94a2a11fb71c01705326ad49. 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/DEGQ82406079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27685cecb365316966e2bd9718225cdd9cee975dcfbb3a86276ccc5e9f9ee119. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEBZ72400151.
L'Amour Fait Mal - This Eternal Decay Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81535f12f7163d04b9be8716bca85d0df459d6e265cbc2fa938bfb23c95f7e6. 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/DEGQ82205806.
Spirits That I Called - Then Comes Silence Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1e0ebf43a10f586a5923eea3a11a540e0c73b656351c1798abfb28ec67d3ca. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DEGQ82205807.
Beautiful & Broken - She Pleasures Herself / Wolf X Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1672c8e8704a20217f83d718466699e42425f00feac1a61c2e306615e4e149a6. 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/DEGQ82205808.
In The Haze Of A Drunken Hour - Astari Nite Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745dacfeba77404f151a5273dbbbd181807e676423ab20b236a009134c3de93e. 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/DEGQ82205809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead3c3c8bfdbcc717a72c9677a688b9575bbc5bdb36a3f839c772281f4b03f5c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEGQ82205810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cb12534702c9186c2fdf71efafdfc450f7a48f2609c46748198f2707f8ef35. 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/DEGQ82205811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d5cecced628b486e40863867a086ddcce8fd1a8eeeb199b501181699b0dcd4. 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/DEGQ82205812.
An Erotic Funeral - Eden Weint im Grab Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7430f2daa8d7c1057b9c63838895c6544737776ac8fc1516e3d7edc74f9d2b7. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEGQ82205813.