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 0xf0e88573bd08835e54191dee4a83989c6c02d5b4661a55234aba8c14e79b3a1d. 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/2eb790a1-1774-42e9-b05e-5d001624dcef.json and https://artists.proofprofile.net/proofs/artist/2eb790a1-1774-42e9-b05e-5d001624dcef.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 0xf7f56486745daeffabc0715f80a6b0b68e7425338a651c5a99cedce8bca93c88. 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/FRX202273532.
Le Singe Fume Sa Cigarette (feat. Nekfeu, Alpha Wann, Jeanjass, Walter, Kéroué, Seven, Ysha & Senamo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa700d7b4062b06ad275963f7b8e6fa221ff10c46fb9b0975476d4a791c622e40. 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/TCACS1657329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9165a3d46d299bcd2799600445c06ff78363eef6aeaf196c6b6c8d444c255d. 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/FRX852308190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebba075f1ffbeba03b5566059d7524abf734f67c6793e2f75e7e555de92b3ca3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX852308200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d88c6818a7bd53fb8faf04a6af5c047ba1550708323a41112c79c99b706d76b. 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/FRX852308210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb98876c2643d82fcb0f18ed46988c4959f3ed4444e02f880e9dc36089cf0a8. 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/FRX852308220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c8cb9216346bfda049a3c153ef8c37363d80e8b644256910acef6809cf5dab. 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/FRX852308230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb4b7f185bcd08e2defd37328e597bcca13b741086bb8daa30e2c327c228e31. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX852308240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244fe717958bcd2a251e8a638fa4c934293924a5880b90ed4cd85d5cd70a8539. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX852308250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056171c86eff9d8c0fc6d54a520e9cf50c23c0a085fe156c55b88d0be38a6911. 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/FRX852308260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc18ab06201152d97b6f06e2c980cdf3f65b2da29587878f3bb31eaef551666. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX852308270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c8cb9216346bfda049a3c153ef8c37363d80e8b644256910acef6809cf5dab. 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/FRX852308230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e45372e0fe2122dfac2fac389f17547b799b442bded66ebea30e2c706acc139. 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/DGA082234475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08be47489c58595c756349600768f915d8646f0429ae8a0854bc4a57ab2e172a. 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/FR9W11415415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3919f6b2fe855e50e419a8100c96f09ca8af6850f1947f47835e5885ee1607c. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FR0U91204323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6624dfab00a1a7786af6f6bf261c84831ad03dae6a0450cb60feff655f44cf. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/FR9W12137465.
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
Ah nan nan (feat. Lomepal et Keroué de Fixpen Sill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf859a23bb87c2fe7c3b7b2b7768b0ec68f1a25633bc45af6840c63e8c37230e8. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/FR5R00905739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b35fb39772388df9a27118bf295339e378a0f9f104fd2725d1c3317a7d25d7. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/TCADY1825984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3486f6725a00577a179efe03f0b73a2386d4ee719394acf316eb84d467f93a8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCADY1825986.