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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64dc5e669be8e441b5c267e3f224d49469296097d9b8e3c1c3c1dddcf9762752. 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/127de83c-1830-4a71-a1cf-f5d100932cbe.json and https://artists.proofprofile.net/proofs/artist/127de83c-1830-4a71-a1cf-f5d100932cbe.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03435402f61ce516fd7378f2b4490cd9997d22ad43b1db9b9ef88cd6d28930f8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ITI020800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd980715d1a707b90321e821bf6181482af982d80ec167970f7d6db40032a0ebe. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:41:08Z), 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/ITI020800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7838b32a9b477cf9a3db8f917a42b807cd6327dbaff1874c89f4f0bd77dd8df4. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T16:01:54Z), 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/ITI020800026.
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 0xeb21ff2f813a0d0ab9dcb07e9ee54f0d6fec0f1aa9afcb334ae286c5d59e377e. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/ITI021000272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288313b678721a6fe891f54562237980598bd0628ce0aaf8b0de68f1bffe48ca. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/ITI021100124.
I Want You to Stay - Nossa Alma Canta Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27979542861041b302aa42178fb4077f5a626ef02e187370b67a91e46e0c6a35. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:50:22Z), 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/FR6V81234820.
The Scent of Our Love (Andrea De Sabato Remix)
Il caffè italiano: Roma (Italian Lounge Espresso Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7fa022407cd59c9d80d50df8b6a8b42950ec29a3bb058e3a3b0ba29390b62b. 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/ITI021000266.
Everlasting Rose - Dave Masoch Re-Jazzed
Acid Jazz Classics, Vol. 4 (The Finest Club Jazz Tracks From the 90's Till Now)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a31754ff7a6f272e4f2469eb8c366cbe66b1c5e19fdeb4f752dc8d22f20848. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITI020900002.
The Wine Lounge Selection, Vol. 2 (Cocktail and Chillout Fashion Bar Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42ba2b52a36c4585c80d1128784ac96811a2c83a44e14e2b552a54b52100fbd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITI021000261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089c5e44e2575d9f39c8fa51de949af1c89ca81c2294096576d2cc24de51ae8c. 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/ITI020800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4394f491b532d26c6941471ba214f39d74e6dd59c46d8ef3de8c34c6d5064a29. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ITI021000262.