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 0x43d4b2b096ed0a47057afbd8c1f007b684ece949d347ca910dc9d9c56192f86c. 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/0d0d4374-bd01-46cf-b428-08177401c2b9.json and https://artists.proofprofile.net/proofs/artist/0d0d4374-bd01-46cf-b428-08177401c2b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
je me souviens (feat. benjamiin, dee holt, Justin Roy & Zach Chico)
Love It When You're Gone (with Gabriel Fredette & Tosti)
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 0x92f25b70113fe1db9029ddb2f56a6894eecc0414962f4e38751336428cd0571b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/CAGOA1800136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e576e4a1f44fe2be3041cf305f857de9d6e417c1df93033f014f0f3e395b997. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:53:58Z), 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/CAGOA1800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3d07b594218303bdc5bbe3f1dc737a37abc0ac2e2815b8aef844bb5042e46a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CAGOA1800149.
Photograph (feat. Zach Chico & Félix Lemelin) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0025b9ccb136dc99f177a3a38bb6d188fac00720d7891b211c5aba03e227c9e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:13:13Z), 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/CAGOA1800150.
Photograph (feat. Zach Chico & Félix Lemelin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1831a70fc845a359091c04dc8d7e8a75899d6a3f51763c032dfa161846fe947b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CAGOA1800143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd22604eab28f0f06f55ec555d8824bfd367879343d8080417fe4980f30823f. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/CAGOA1800145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72869d8aa58f1412ec085054af2bfeb66b63dab9002f59808b31647dce31cc86. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:49:49Z), 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/CAGOA1800148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db0c32fad163d26c3fa887914fcc2b8da94aeb0764dfad3f2df2d27e60ea99b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CAGOA1800167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c7df645e276459c3783ff7712aeb54d602c570ac543ade1a802c7a16413553. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:43:30Z), 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/CAGOA1800168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11df5171a9516513bf1fbf16f8adc9ddf8ea73afa48359055dce14b95e6c784d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CAGOA1800202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefd7b1aaaf65545ce97798439b7c54e211a23f09b2f7fbcc872bee30e9c0de1. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/CAGOA1800204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469578f2d37175ad9fb252e334174702c9b284c99932550c16bd849b9370ccc2. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/CAGOA1800205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1831a70fc845a359091c04dc8d7e8a75899d6a3f51763c032dfa161846fe947b. 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/CAGOA1800143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf329bdbeec28fb62b4466df08c89c81cf416d7a27a3b8aa5e98a0a31c420528. 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/CAGOA1800196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717b77d10372867bed8a29f574b7eb053b2fc4d3fd620395bed91442f21b6bff. 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/CAGOA1800218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96354f97787526801e9932af765558c8ca40515173d007f0c81806cdb421c96f. 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/CAGOA1800219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d884796cfe5b2cef3f428a887e7ae9234d8876233b4ce045e5b5bc6c79fb0f3. 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/CAGOA1800220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7691deb5b07b91f277587e00b6a0d8595ab7ab4defb29cf95a481beb070fb9. 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/CAGOA1800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec957a2bc8ad11028f0d80b7b03dff849d3dba732aa87573cc04c523c0ed2e0. 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/CAGOA1800211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ca5a87af88c5ca5b2f8583de884df52daa9f606088558ed854e7635ba2f445. 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/CAGOA1800248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b0bd04f8c00cebf64b639e550c21d287d999f0f8f2f463941173fdc366d40e. 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/CAGOA1800249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1590460ff48f759d0d631b3ba222935b1e0ae92a5649633065ff7a8bf248f8be. 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/CAGOA1800243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb019c9961f9f095450f84bf76fc074514bba41e4eedbe037a9c259c1ebe240a0. 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/CAGOA1800250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf329bdbeec28fb62b4466df08c89c81cf416d7a27a3b8aa5e98a0a31c420528. 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/CAGOA1800196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf070a7dac84bd4a68d754765614d4feb64f64077c7d50220e9cbb0a888fa5c85. 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/CAGOA1800217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717b77d10372867bed8a29f574b7eb053b2fc4d3fd620395bed91442f21b6bff. 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/CAGOA1800218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96354f97787526801e9932af765558c8ca40515173d007f0c81806cdb421c96f. 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/CAGOA1800219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d884796cfe5b2cef3f428a887e7ae9234d8876233b4ce045e5b5bc6c79fb0f3. 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/CAGOA1800220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7691deb5b07b91f277587e00b6a0d8595ab7ab4defb29cf95a481beb070fb9. 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/CAGOA1800126.
On va feeler encore magané demain matin (acoustique)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaaa6b549523a63e45b20f5c92a41b0e70d48af479c13732ad5dc3b3cc63dca0. 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/CAGOA1800258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676acee6aa780e3457a49b3acce285a8da76bba1165bfaa697aa614dc6fde746. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CAGOA1800259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6846116ea128bebc16c6f320179690bd2bef63d67c25103ce685523fa0249c0. 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/CAGOA1800260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74ba1700c820c1c83d9491c6480cceb32355b151b163f5e4bbf3ec196c5d5da. 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/CAGOA1800261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0672556e067a68f515008fcbf07124532c83effddcf4b71b9cdedd8f2b4703. 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/CAGOA1800203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa290306246eb467f81c479cf62686052e57773ccbc40352eea635c9628d6549d. 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/CAGOA1800262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf17a3c6a4e16f9e6834f6383f34ac4f56fcb6fa068cdd6db8d0ce9c07655056. 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/CAGOA1800263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9459a48ac0b34498afff5b483d2c91cbeb0d85efab611aa43c092988277da04f. 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/CAGOA1800264.
Maintenant j'suis en vacances (acoustique)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7b9586e72e09d233e949633b5cbf7cd3fc7b862c77065d09eb595323761571. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CAGOA1800265.
Je me souviens (feat. dee holt) [acoustique]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bc62354653cce5a8e6cbdb4bfbe6388c4ac5027964042efdcd08984730696d. 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/CAGOA1800266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8836271fcf816eb2edcd36fd3c0b9d7ca4094b50c729cb5e4b83640c82523f. 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/CAGOA1800267.
Quelque chose à raconter (feat. Phil Rxcket & Zach Chico)