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 0xda9853bdd90da48ebbbac349eb36f3528abed026c065cd5d571fca1cc2dd8971. 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/cb7da3eb-4c58-4cc4-a109-561ea2dca039.json and https://artists.proofprofile.net/proofs/artist/cb7da3eb-4c58-4cc4-a109-561ea2dca039.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 0x0fd22bf450252134786b06508e43376868bccd8f0c8c675bf7fe4edab6b276aa. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEAL31500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365d2c5a1f38677b5915aadad6b1ece967384b65354fad870d1f8bcc6d0327ab. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEAL31500099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f01dd99944ba81d2e336e56469330748f921ad610f21365070da03edd360c82. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/DEVA32000021.
Won’t Forget These Days (feat. Tristan Stadtler / Raum27) [Midnight Session]
Won’t Forget These Days (feat. Tristan Stadtler & Raum27 - Midnight Session)
Liebe Freiheit Sehnsucht Alles (feat. Nu Jazz Avenue, TYNA, Karl., Mytwo) [Midnight Session]
Oktober (feat. GR:MM) [Midnight Session]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f01dd99944ba81d2e336e56469330748f921ad610f21365070da03edd360c82. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/DEVA32000021.
Stille (feat. Matze Rossi) [Midnight Session]
Stille (feat. Matze Rossi) - Midnight Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c61748bbf2e17da192e389997f81c55673014646624839b711292c973988ea. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/DEVA32200001.
Stille (feat. Matze Rossi - Midnight Session)