Vilain Pingouin is a rock band from Quebec, Canada. Biography After having played for a few years with various English-speaking rock groups, Rudy Caya and Michel Vaillancourt decided to plunge into m
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 0x7a0dc5c0328fbe9beee270addb6e03a8e3bc5bfd1f2f6d153536a5ddd46c0fb8. 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/6f06aef4-4a5e-4b51-b37d-fb2731e46dda.json and https://artists.proofprofile.net/proofs/artist/6f06aef4-4a5e-4b51-b37d-fb2731e46dda.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 0x2bce9cf94b94e663642daead990dcff28a2da745dc8f0e3be99aa70ea6869571. 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/CAA509003702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11958e04ac69a2bf1dc22a3d340dd7bf09c78da92c5d28d9e0634a2e83613683. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/CAA509003711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0e22248cc6494e10b218d8bbe75018f5d3acf1a9d6de42a0b4009ef7fe2386. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/CAA509269002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9299c98689a8e41988f8b56eeb2af7f0fec8efd80f941bff14ffc4b7d36618. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/CAA509269004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7925166b076a7a66a72cc7a662a36497a0ff6c5cae1e7072505fc80fb655e154. 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/CAA509269009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb5deb99414b2b0483d253eec6f642aa6b73303d4ca81222e71370a324d11bd. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CAA509812004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e43a8cb9465d45edddb358a20e14c572aa49694d22f6d8045095c493f19cde. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/CAA509812007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc59b180550b0e71b17365256dfbed461142292e67b2906bb2e007399988a91. 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/CAA500317006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6bc7adc9b22e66b147aadb55eb29e8e3477cbda4f29c3a2ea5ce884386e5f0. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/CAA500317014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39eca4353fcf196aff305bfcdb4b57a49868bc71d389265373e399179af92a6c. 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/CA3HQ1402001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70552c137fee81964a3fe9c86dc9d88c673e5c778812ca92141e8fa27785b957. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/CA3HQ2545001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6262a002fd630e05bdce6640443a6115f6eb3e4d7e4f15ecb0fb1a834fed6f32. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/CA3HQ2545003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e7a76180bd3bc48a974dba17c9292838e130834754ecaf34d9a138d6bd5c57. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CA3HQ2545004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373f06d29bc118405a9373b5a27eed5c3b9da2a83ccdf01f082352987bfa9326. 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/CAA501430015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e14a954faccfcc61c5ef02fcafb46f4bb112fa09a36f20dd6143a2bf3530b9. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/CAA509494012.