1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x5f846e3411d73c009769cd335cc910bb92f0ac193b95d59a5188ab7b27ae257c. 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/e023cdfb-124e-4260-bfdf-01f1871059d1.json and https://artists.proofprofile.net/proofs/artist/e023cdfb-124e-4260-bfdf-01f1871059d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bois-Colombes (feat. Jolagreen23, MITCH, Kabbsky, Buu & Ydasevic)
{"copyright_id":"0x3fd82a731a221252fcc8f3f3ee2249222c966ad915a9839551444e9c03b3b5fe","isrc":"FR9W12409572","name":"Bois-Colombes (feat. Jolagreen23, MITCH, Kabbsky, Buu & Ydasevic)","registered_at":"2026-06-08T19:44:17Z","spotify_id":"78lHub0B798w3W4rjDQKVW","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd82a731a221252fcc8f3f3ee2249222c966ad915a9839551444e9c03b3b5fe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/78lHub0B798w3W4rjDQKVW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/78lHub0B798w3W4rjDQKVW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd65ab068fda9f8b2643e19c578c55f41994a629f72194afe15994dfb9bfbed. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2FUsVTgmf8iEbqw97PP7jh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2FUsVTgmf8iEbqw97PP7jh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35807dd1fe76e2904e12506da0cbfae615560c4bcc999d9832da2ad8e04b9422. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1CKkePrhEoioJX2FgzTFyf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1CKkePrhEoioJX2FgzTFyf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382d627499bbc70a99ed9e0e0e6e8773a1b69ff8187296f0899a2b268aedfab8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ZsOyv67u15kFG1mbYCu14.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ZsOyv67u15kFG1mbYCu14.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd65ab068fda9f8b2643e19c578c55f41994a629f72194afe15994dfb9bfbed. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1XWl4Ry1O4Tr0M7O7hkkxY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1XWl4Ry1O4Tr0M7O7hkkxY.
NO LÈCHE 🚫👅 (feat. Favé, Kerchak & Leto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42bd9a73f845fcaa391db5ce3502dea9043737ea47b2f2b08c62249defc2d35. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6D1HiF2e3Z0F8FwQ5uLxwn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6D1HiF2e3Z0F8FwQ5uLxwn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3ee67af5883aa8ff4d2c4b3df2d53848151ed91663452405c4e383858035f5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/206Vw5T7lXIwfEDQL2ayKR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/206Vw5T7lXIwfEDQL2ayKR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fd2850e7b6e4ba61c34f475ab35120bac32a030816d36b652ae67b3fd13295. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/75OFYKNQ4tQeWcRFUnWBdy.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/75OFYKNQ4tQeWcRFUnWBdy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33077a20056d258009a19f857030ecaf04dd31949e79bcc78f245e29f9535694. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Gu9SEGGiILhTILQHvjZB9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Gu9SEGGiILhTILQHvjZB9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33077a20056d258009a19f857030ecaf04dd31949e79bcc78f245e29f9535694. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7uzBaYyRLzrXfZjUpFmYrs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7uzBaYyRLzrXfZjUpFmYrs.
{"copyright_id":"0x4d45607e03bcf21d8fe6fd3b5f109a3f156bccd0b6dbaff6b88022bf24abcae5","isrc":"FR9W12363206","name":"T'aimerais (feat. Ziak)","registered_at":"2026-06-04T03:15:10Z","spotify_id":"659scToLVMQbD0vBdwuvFa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d45607e03bcf21d8fe6fd3b5f109a3f156bccd0b6dbaff6b88022bf24abcae5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/659scToLVMQbD0vBdwuvFa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/659scToLVMQbD0vBdwuvFa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5896dd279bdf2a8644b15a5e6711d2c93d855c9077039ecc2d5b147ce6e2c5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7IXQrRgmHxWYWitSlyFY7z.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7IXQrRgmHxWYWitSlyFY7z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0001e64009db652d9ae535ec454387ee83627882751821686d96576e36f56b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5S3T6ehxN7U1W7KDGFTcaS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5S3T6ehxN7U1W7KDGFTcaS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470437d8f1dedb6c3d0620443162a3909b7674306840eb15641b2f586935f81e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6HoQV2sstHF58nw5blUY7m.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6HoQV2sstHF58nw5blUY7m.
{"copyright_id":"0x4d45607e03bcf21d8fe6fd3b5f109a3f156bccd0b6dbaff6b88022bf24abcae5","isrc":"FR9W12363206","name":"T'aimerais (feat. Ziak)","registered_at":"2026-06-04T03:15:10Z","spotify_id":"2Tm9ujeEWuBBsg6OPlRqvg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d45607e03bcf21d8fe6fd3b5f109a3f156bccd0b6dbaff6b88022bf24abcae5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Tm9ujeEWuBBsg6OPlRqvg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Tm9ujeEWuBBsg6OPlRqvg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853461952bc80e02ac46c7946ff24999e7887dbc7186a74871be00ecf706d565. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5tPYdtYhQHuHdoHjKoOQmv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5tPYdtYhQHuHdoHjKoOQmv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f93eb7862be7caf9b45b9893c064416f98754b55cf42aa9c1b7ea4294ae363e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0tIRpz9pRsscRvC13ZG3H1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0tIRpz9pRsscRvC13ZG3H1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41485de62efa5ef1a1c76d1de6b003783befdb58fac9290553a702136eb3e0c6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2xD1eI1brC6BddF2QT75T0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2xD1eI1brC6BddF2QT75T0.