Les Louanges is a Canadian indie pop act from Québec, created and performed by Vincent Roberge."Les Louanges: par la grande porte". Le Journal de Montréal, June 15, 2019. He currently has 2 released a
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 0x1da1b9821febf70b8364553c19b2bd51a4ac0885a96a8cfcaf6d26b26ee54058. 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/62a49daf-a80a-4f6e-bd2e-baf4cefbd9fe.json and https://artists.proofprofile.net/proofs/artist/62a49daf-a80a-4f6e-bd2e-baf4cefbd9fe.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 0x74c92b475b48d0fa7cf5fd9bbe3a174894789701207dc4bcc55b672ea72be93b. 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/CAZC31700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54b0166e2b4fd0e3d9d03d7d6efe608a6fa8c5acef631c1f7bd5c4a510144b9. 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/CAE861810002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b5984659d7a8fa1c299cec7d7c87159d45408b7f395767fd4be935fa8091e2. 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/CAE861810003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0464cc51453f0a5ce4b03b2cc76ba5d783f4632438a92dcd9d60b537bf3af946. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CAE861810005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cce7395473bd5426a7458b70540c1b20cf824965f99575e733d0a618c46b7e. 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/CAE861800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9fd6ca176ff366bf95978496115def6c82a38d600b19a6299ede93b9489d80. 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/CAE861810007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416304963f3a179603143a312bca36fa2a01a19cdeb6fbbbacd64446fe9457ae. 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/CAE861810008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29349707216e19742341ab4922465b392ee24235ae1f5a5a21d9a7f42f049f80. 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/GBUM71807073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d774bff64d0dfa7b19a3990d8a9fcc1eee108d03265034df2aff9c7b985c6b. 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/GBUM71807923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a870ebebd1f0b851a3908e344d3eef159d5137e10c85795103e8e2f2ba22a7. 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/GBBPW1900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5880a80c7478b03e84d13bd6ce54f50562fa4d412f89a1ac3b9209e42f08d52b. 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/GBPVV1802618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d49b444c9918c936bc5518e38e4141d0a826e04cda7dd657a259ad0f24b9b99. 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/GBUM71807977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92bbef2231782cf5ebbd8241f46deaa8117bf963a0c10305ba5773f4c132634b. 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/CAZ842100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122f518f474d35505cd2d61a7718c0f0b1d7b86b00fea3979392343844335a5c. 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/CAZ841800055.
J'aime quand on danse (tes mains sur mes hanches)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5486fba1b63f0e4d67e0728bbebf6b6d145b4d9cc52cb72facc7b0b653890873. 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/CAFWG2200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29f10d92d8a2ec844f8bccd6271244542747bc81e9b28f9e377d457773d3956. 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/CAJZC2100004.