William Cloutier is a Canadian pop singer from Victoriaville, Quebec,Manon Toupin, "La Ville de Victoriaville honore William Cloutier". La Nouvelle Union, September 21, 2021. mostly noted as the 2021
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 0x6f945c9f9c599969fd11123e1c51345f06fcffef2dd94f6a846d38e9bb547315. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/756777dd-b34c-4e10-8949-eaad5db5e934.json and https://artists.proofprofile.net/proofs/artist/756777dd-b34c-4e10-8949-eaad5db5e934.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 0x4652035c139eaca25ed998917b1c371ee75eb84d29a7750d664a629ac5e9d329. 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/CAQ522153002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e532e563d0c1da85ffa832f19ed3b7d5d3a4f49da3dbc5d36e71d39590eeb0. 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/CAQ522153003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5167d26b9ce59d268e39d94efab28cc850ba1ba6fdaeb1c846228aad6737ff. 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/CAQ522153004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9459e4327ef4e97b4e41240d093d4a2abeef4bb92123c407a80299dc14b147c4. 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/CAQ522153005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13cc90c8530847f6859ee63218985fe766b874b89aacac44ccfa7c9a00cabdc. 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/CAQ522153006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb822e10502fa379cffdbd580d6600a1257dc20dbf5f0904a5e90153ee5ab9613. 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/CAQ522153007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fcdc0aabbd12de1b4d2bc6eac74c81d5361a1383f9c48a2daac5622ce3ef62. 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/CAQ522153008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ce7d40a6c793d0897b40048137f7dfbdeae6adcd9f08c20787360c4929b9bd. 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/CAQ522153009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa072e960e503716c69baef16458396ee9c5c0c7086ab2a0a6c869306f9ac2baa. 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/CAQ522153010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308ec91f0f53006936a1ae461e363a539aa4961cc64dac0829c26fa348aa439a. 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/CAQ522153011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8c08b8e5851309c5d73e3b48580d0ce28aab3b38ad021bf722f1c24c2d68bb. 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/CAQ522153001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a943f3df273a0e7d9972f97f61dabc106365e7b16dab0e5dc5e0dabe5f1fcd. 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/CAQ522491001.
La plus belle des versions de nous-mêmes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bb572961718f62c2cc5e660968cc9ae666b2f7dd1fd6d0537acee508ef8983. 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/CAQ522144017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8c08b8e5851309c5d73e3b48580d0ce28aab3b38ad021bf722f1c24c2d68bb. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/CAQ522153001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7062f35fe3058e76f687e596a55543d6996eb7dcc14f8ab84f4c40513ae7c722. 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/CAH601411001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ba1698e011c1f40124164c43f3d34a7bc9018c2180fb77d14dc21e33753b92. 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/CAQ522124001.
Les performances des candidats en danger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2086c6d175c098b88caafba65239260210e228e22942754f6424909153998713. 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/CAQ522149007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b398994eeca868cb5ffb2a70df4ec72b5c6b986e65bbc996005931a8f0b6cb. 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/CAQ522149025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f993f5ec3928ad6b0964acfe1a531b2aa4e340a3bae395606722d47f8af9dd. 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/CAQ522149028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dd88ac57cf031962dd7fb0714d947e7c677d56350045383333d047cf064dc2. 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/CAQ522149032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d8f3ba2c9de9823e2f33214d5fb98102be4490956738b9c5abe2528dd418b4. 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/CAQ522144002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861203227d4f9b659b89363cc4bbf333ffd98d1bf996f8786d331f239b481aea. 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/CAQ522144001.