Flore Laurentienne is a Canadian instrumental music project, whose core member is Mathieu David Gagnon.Josianne Desloges, "La petite révolution de Flore Laurentienne". Le Soleil, November 6, 2019. Bo
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 0xd92427650358bd5b6ca647271195e76bfb03844b207ea39b69ba3742f492bba3. 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/26a752e4-2431-40fa-ae68-0094d9d35a2f.json and https://artists.proofprofile.net/proofs/artist/26a752e4-2431-40fa-ae68-0094d9d35a2f.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 0xb42d35b41671266e54cda6e644a010e4db94e99de05a6917abe512821bd5804f. 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/CA50N2300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211c6210aeae37120168a488163b4d20ab056875ebbcf2173deb228a67a00a8f. 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/CA50N2300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c94c0e78c28d27f98f63cfdac80e4e7bdbbb022e2f935eec54a094b3cf85282. 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/CA50N2300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f760b55df55abfb0046ed5c769212ea4bdd90a49e80016be0b73abbd483b78. 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/CA50N2300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a168ac984af7365f4877b8a7410362ef9fe0f03ebc02d9aa5bdc4523541843. 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/CA50N2300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52fab09027203c0bc9a9e860d38cd7d6b9867b7b7724662c03c6074379ddad6. 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/CA50N2110013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146449a5ddc399dde5a12a1844e8be4a01e23b79775d56c82c0c20c05a83348f. 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/CA50N2110015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f63b76ca519c456a73f62bb028d7476e9229d3f2aafa88b960a504610ab422. 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/CA50N2110017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc85265c34451bbd59a2c1b429afc3f9b4a38dd47bc52b74c15f1ae866e31692. 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/CA50N2110019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7a9f8ee7070c263fc23e89379b822f61f5b7a5e6806f60056887a72c1a7047. 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/CAIRJ1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f14504c6d8c46fc462c7c128d72445f36e6fd409f2b7d49fe72082216262d9c. 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/CAIRJ1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ff96d20e9ac74c8ed94a3a4c4b2e1e69198a34defcb8185e16157d80f0e4de. 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/CAIRJ1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5d0fed8c44335523df5b979510c8ac3bbdd0bb0581fb22c28a8fde3c2c869e. 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/CAIRJ1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf83ba52ace4aa9cbc80ae92caa445880f4dea88b70fe1ac85bd92ee6c17a06b. 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/CAIRJ1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b05543ddbda6e6d893123078329115380085afbf8779dc77478380729e8427. 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/CAIRJ1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba53a6145dc9e4bd219eb9569a835bf915bb43554f9e0dd9154668e559c0f13. 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/CAIRJ1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987472bbad71b8bac78dc726ce1113f5ce0ddc105af6a640eff82e79b7ddecdd. 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/CA50N2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42d35b41671266e54cda6e644a010e4db94e99de05a6917abe512821bd5804f. 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/CA50N2300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211c6210aeae37120168a488163b4d20ab056875ebbcf2173deb228a67a00a8f. 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/CA50N2300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06dfd87b0f6a9888304aed401eab092e7aa0c76151ba1a42ded9e7784d236b6. 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/CA0RZ2400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c94c0e78c28d27f98f63cfdac80e4e7bdbbb022e2f935eec54a094b3cf85282. 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/CA50N2300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c17689a93f499999e27a753d95507b9c2616a7d3e210aa5f755d0dba867bd71. 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/CA0RZ2400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b5adfc6a4af1fbcc0005896df6906880da5eb9591eb8caaea33c734935b5c1. 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/CA0RZ2400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f760b55df55abfb0046ed5c769212ea4bdd90a49e80016be0b73abbd483b78. 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/CA50N2300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a168ac984af7365f4877b8a7410362ef9fe0f03ebc02d9aa5bdc4523541843. 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/CA50N2300208.