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 0x230816ffac64c81b01bd1142e8e86810a1d3123b3290b35581a1c92d56f0345b. 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/785385da-753e-418b-bdab-5a702bd128a0.json and https://artists.proofprofile.net/proofs/artist/785385da-753e-418b-bdab-5a702bd128a0.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 0x32262f9f776b3cb7e83411f4f92b4337527206f0ef2db8de4da16bba6496540c. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/FR6V82088785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49f4e9fdac355f5b883409926ffeeceaa2d93eea605332609317c07cdf9a9ce. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T16:00:56Z), 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/FR6V82088788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940e5d4ec2b319747d1be891a80e123d2156fb34b7ae77dae316bcc3af952228. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/FR6V82088792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a8fe66a0564af81e6cf308f2101f6836c59f69ed4002304e69c499ed5fa032. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR6V82088793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44328049eaa374858cfbab772d0a7b04f43789fe22e075284e36405d86b89cd. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/FR6V82088794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b1d77d5d58fda2b6cc81882591720e7a7f1ecc7e4ff81b91106bd9aceb394a. 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/CAA4H1313051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b07c2d800305a3db4d8e73c73203b2fd905edb2002d97266c45434ccaa0f77. 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/CAA4H1313052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb603ed481ef51ec85df51806a702b4449fe23a44227cfcc106e11fe8c048cea. 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/CAA4H1313053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2a6dea1656081f2b108179fb5129791b87ede4c9bea206f7f33c3024049dac. 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/CAA4H1313054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6130ee85dfae111108a17e646b40a313c04c264fcfeb9c57c685e2cbb9a822da. 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/CAA4H1313055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc048831c94611313d9cbafc26b42b8e290761b1019e76c4831ae0c4e34082592. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:43:59Z), 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/CAA4H1313056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790ca829f7eed325a907c7ca920bf327bab20fa69a5351b2d0de80dda19e0e0d. 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/CAA4H1313057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a46917c139e1c59ff58786a273d73ee9572219eb3be04afe422d18331bc931. 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/CAA4H1313058.
Salut Salaud (feat. Vilain Pingouin & Fred St-Gelais) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2864864f8dac1ff4a6d3e08c876ea85df89f7cf2a9622967d57ce50948d9151a. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/CAA4H1610002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebb57e7d9b3051cd0dc3845154e621ddab3f20c86a3a38df1fda9a1efa4ed5d. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/CAA4H1610003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300cbcb691277a9deea1d2d1ec97b7862e6d8407248adfc38bcebce5601cbc89. 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/CAA4H1610011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93661960e9896fa6884801b6917fcc88b83bdd400ee8aa1a5e2d0b08262eaab1. 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/CAA4H1520007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371fcb7a13ff9672d4648be828a49e51c71bbad848ea5792537bb26707915d7a. 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/CAA4H1520009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0046d4e57c708d45bdfb8bf96d8850f61ee73f999b7e13492c45293b65e44c5. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:46:44Z), 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/CAA4H1803004.
De part et d'autre de l'Atlantique (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d8bbe7f90868d351d8cc209979bef60a3eb835ffbe56e5725125e14ff67bdc. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/CAA4H2410001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf97285815ba5133c3b6161577d1b7504f74e382449efdbab74fb34ec702b6b. 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/CAA4H2410011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0af2c781d05d6e3490415bf4134b122c6a668ed41a3a7d4c7579d3b586ba2fb. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/CAA4H2410012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0991ff94b6438a4453d2b15e1f1bbe80e651c0f6a08f0f6baec2f0c0721b07d9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CAA4H2410013.