Les Trois Accords is a Canadian rock band from Drummondville, Québec. The band released their first album, Gros Mammouth Album, in 2003. In 2004, Gros Mammouth Album Turbo (certified Platinum by the 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736106c3c88b2696bce9aa90182ecaaa84d26f3fa02ec8a5ae622c8e2dfe3483. 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/f9dbf71e-c939-4297-90a7-a4691c6c2bd8.json and https://artists.proofprofile.net/proofs/artist/f9dbf71e-c939-4297-90a7-a4691c6c2bd8.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 0xbb7938c6d54f751d2e1d02d1068efb6018014502cc4d974a8d44a13f6d11a5ab. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/CAL541416008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474c0f70092a4d5d9ea81dab56a86fa01d64ff3cbc5b4e9d09169cee206bcc2e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAL541416101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952ed087583088de6b2199d68a816bf55c29b0a7dd2e150ebc97b03bad1c668c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAL541416102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb377d20ff7152e0bc8bc0fa2f5a00cfec28a768c43122cf8ebc72b1ef5bf7379. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/CAL541416104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c6582c9898ea97f3a61d82ce74e64a58a35d8205dae067f90efa937199c86a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/CAL541416105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7d3528d85fe6170a8cbc7fab4e46937704e3508922d5ee31e9c436462b2671. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CAL541416109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cae3ebe266d90c4d4623ce1680cb80c7ec2560702b6c759ef990a14fb0ebaaa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CAL541416112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53926438415672a0096bf4b8591fbafad19a5b5ea3e584ae79cd4fa4973fbadf. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAL541416113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3120d69713718ec81a6eebe59153b98b881dbe0d8222364bdb9fa03ca90ae364. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/CAL541416114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d2d605808e5ec481537d2ef7efa7647425afd488c5b02d2d832025b6832241. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CAL541416115.
Merci c'est trop (Chanson du film "De père en flic")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac84f8149404be9d91e424726f3ab48e22674f2304908cebdcd7cd78341c88ff. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CAB920900402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6189c8ee6a1c14d1d206d290f6b8e86a918aa6f4a6257b752bd074d63a2bbe56. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:19:10Z), 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/CAB920900408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a06f27a512b041ec4a82fdf1b5829f0512f3c3c9e65cd27f231a51348911277. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/CAB920900409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff04370046944624b5c89878dfc52d541bf8fb2c2c3690eca9aca8debf2b797. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/CAB920900410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c387b44addf28c898c99f3e668b21ba8e30c40af38d5195ce6b800fbbdc9ee. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:50:48Z), 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/CAB920900411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cda1bc260cdc6cfa9cc3ba05abef01fd5145d1e566744bab65605068e117bcc. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:28:49Z), 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/CAL541214108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9962710562763a66a46dbd6f3e9758c09294cedb6d16122aab3b5341bace5e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAL541517102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ff3918ebbe57a6983d29a685d18b88d012b7542067b598872802b9eeb3351e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CAL541517103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cde0602c58740e5f8003b02ca61958eb34490a886eda6204c478aa2c6409140. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CAL541517107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce2645522981d92eb578b699249d3c21bf6400545939ea9c3531ce9a6e5db11. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CAL541517110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb2128d1c452500d11346ea46561b65c5fbf1717db3c9b412a09fbf30da2df2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAL541819602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c3f811bb7841a9b67632e54763be13c618cd8bdfd7f0c132c6f4795a2ecbe0. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/CAL541819608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcc9b62ea30e5a0351ec3ef6997bc0a943171788af3366aa9527ee5bc3b5b8b. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/CAL541819610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b6ff3ce81859b757b70a6b9acf7def4050116245bb99123ef634319cbc11d3. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CAL541819611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfbf47fbe6fda4d10962d5a6a20c801e775ef3883ab3b5552242aa228459414. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/CAL542020001.
Les dauphins et les licornes - Version du film - Live dans le plaisir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34e08f52b1fca514318d292c6046eb989d65451ea4ad039b6ed357fef208a35. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAL542121817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17132135e0cef3f8362027f83d9417f6585582f167e3e58af00ef2063f0fabc. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:29:33Z), 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/CAL542223201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2a5d0fb25946c06fbb3e2bada3ed1761fc8ed0845a2068e179175461f58f0d. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/CAL542223204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e34066ea9a92c5adcdfc972bdaf671bfbc84d1b0f316e85ba0ca2af8622877. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:30:47Z), 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/CAL542223208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8272eca7a4f0318850737168c7526e089e0e992db1f247c4988e829e1e44945. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CAL542223209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f88d7d6e007e34698e4f6b7658bf1b0df90e4bdcadb98c093e68a777d62832e. 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/CAL542223210.