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 0x9fffafe51eac38931fb62e98ddaf19bb028051becbd166bb83116887fdf1a298. 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/8176cdc0-40da-4248-9974-2cc162060216.json and https://artists.proofprofile.net/proofs/artist/8176cdc0-40da-4248-9974-2cc162060216.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x92e024a4ac9c08e590779b8aa11e4ef05e333421ad13fd480555d1395b7d1247. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7j9njIKbfZqOEfxuRs3iQi.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/7j9njIKbfZqOEfxuRs3iQi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b039086acf31991000cb8013eabd82b01fbd20a2b5237b7075341c7c329b57. 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/7yQvmfFU9BAEcyCGVN9QGy.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/7yQvmfFU9BAEcyCGVN9QGy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020ba725c9566925d1c4c43fde3419cb6dbb912b080edacd2cdc75323816a277. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5DEqmhXb6VESA4KX3KTco6.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/5DEqmhXb6VESA4KX3KTco6.
Yuteman Denis (feat. Charlotte Cardin & Zibz)
{"copyright_id":"0x4a29b90250be16b01715ba68d9745994b53df974de6b027a915d8028c2a8bd34","isrc":"USRC12300435","name":"Yuteman Denis (feat. Charlotte Cardin & Zibz)","registered_at":"2026-06-20T21:39:32Z","spotify_id":"1fOoazUjNQ6IWy4xz7sqBz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a29b90250be16b01715ba68d9745994b53df974de6b027a915d8028c2a8bd34. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1fOoazUjNQ6IWy4xz7sqBz.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/1fOoazUjNQ6IWy4xz7sqBz.
{"copyright_id":"0xd1882fef8234baa0b6aa464ee0db851ede3c4183b24454a0cf71fc795f5ca12c","isrc":"USRC12204533","name":"Fam Without Blood","registered_at":"2026-06-20T02:00:01Z","spotify_id":"7xLDettMGTIBwxoHhRxH2S","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1882fef8234baa0b6aa464ee0db851ede3c4183b24454a0cf71fc795f5ca12c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7xLDettMGTIBwxoHhRxH2S.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/7xLDettMGTIBwxoHhRxH2S.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4684a1c8f0d887c0764ef9f6424675e946f67a185c918cd338dad2964d23318e. 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/1aYelCq6B5NHQI70OkTghr.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/1aYelCq6B5NHQI70OkTghr.
{"copyright_id":"0xfbd6fc311188373684ff8afa080f1fd3c25d990dd708b7efd6da6dabd31923d1","isrc":"USRC12300951","name":"Our Souls Cry (feat. Obongjayar)","registered_at":"2026-06-18T13:34:00Z","spotify_id":"7cnlFOceSNmLDJVsIffrGd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd6fc311188373684ff8afa080f1fd3c25d990dd708b7efd6da6dabd31923d1. 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/7cnlFOceSNmLDJVsIffrGd.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/7cnlFOceSNmLDJVsIffrGd.
{"copyright_id":"0x713e8d62a3813fd877ded72d5d0128f5aefff15ce7cc7071eba2900a69d16526","isrc":"USRC12303123","name":"Left The Trenches","registered_at":"2026-06-24T02:22:09Z","spotify_id":"1I0GwWDwHc9FvsvmrOBtmM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713e8d62a3813fd877ded72d5d0128f5aefff15ce7cc7071eba2900a69d16526. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1I0GwWDwHc9FvsvmrOBtmM.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/1I0GwWDwHc9FvsvmrOBtmM.
{"copyright_id":"0x4a29b90250be16b01715ba68d9745994b53df974de6b027a915d8028c2a8bd34","isrc":"USRC12300435","name":"Yuteman Denis (feat. Charlotte Cardin & Zibz)","registered_at":"2026-06-20T21:39:32Z","spotify_id":"6d76elW1vls3rILMOWy2Ck","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a29b90250be16b01715ba68d9745994b53df974de6b027a915d8028c2a8bd34. 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/6d76elW1vls3rILMOWy2Ck.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/6d76elW1vls3rILMOWy2Ck.
{"copyright_id":"0xd1882fef8234baa0b6aa464ee0db851ede3c4183b24454a0cf71fc795f5ca12c","isrc":"USRC12204533","name":"Fam Without Blood","registered_at":"2026-06-20T02:00:01Z","spotify_id":"1J4VJFAnnb55HrCfglZmF0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1882fef8234baa0b6aa464ee0db851ede3c4183b24454a0cf71fc795f5ca12c. 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/1J4VJFAnnb55HrCfglZmF0.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/1J4VJFAnnb55HrCfglZmF0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd62743c5fe38d36a95967656c98bc73cae867ae75b9321a6b0e23c76e3d77b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3HMT60X7FnNyzwxiozhCL5.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/3HMT60X7FnNyzwxiozhCL5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8b803ec67e377ed89fdf9468076683e09c1ea8196038055511e0ca05eed2cd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4d53iJvfGbPyQGRnbtmtiW.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/4d53iJvfGbPyQGRnbtmtiW.
{"copyright_id":"0xe8fd4074983960142bff79db4b563ab88dc4ac653688114c918dfdcdc35e0580","isrc":"GBBKS2200014","name":"Bloodclarrt Business","registered_at":"2026-06-19T03:27:43Z","spotify_id":"0x3VmItOxAzDKLOT94FQSv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fd4074983960142bff79db4b563ab88dc4ac653688114c918dfdcdc35e0580. 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/0x3VmItOxAzDKLOT94FQSv.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/0x3VmItOxAzDKLOT94FQSv.
{"copyright_id":"0x9a2313ae82064c99ef820481b41b0200a00c476a4d6924552421ecb1d62b43d7","isrc":"DEXC82100096","name":"bloodclarrt business - A COLORS SHOW","registered_at":"2026-06-24T02:20:42Z","spotify_id":"3BVfeLF80yhuMTSB7rN24w","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2313ae82064c99ef820481b41b0200a00c476a4d6924552421ecb1d62b43d7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3BVfeLF80yhuMTSB7rN24w.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/3BVfeLF80yhuMTSB7rN24w.
{"copyright_id":"0xc2e908db89971799348f2261dca4d7370a7795691f4eb5296b9e0ecaf8ae8c46","isrc":"GBBKS2100396","name":"Break of Dawn","registered_at":"2026-06-08T18:41:09Z","spotify_id":"5rv0ykJvnvPBunZacaysvW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e908db89971799348f2261dca4d7370a7795691f4eb5296b9e0ecaf8ae8c46. 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/5rv0ykJvnvPBunZacaysvW.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/5rv0ykJvnvPBunZacaysvW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ac8f846054e128ac9ff6706520e789c6f26523110e0a05e591de5aae9f6c7a. 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/72QDpNzpJGF8RN3MJUvgUV.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/72QDpNzpJGF8RN3MJUvgUV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc29da8180027faab5fbe343f698e92417161c1e5e8b7fb92c7e465d7b97b62. 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/7HcXYiiZVtXm8lt4AYffm7.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/7HcXYiiZVtXm8lt4AYffm7.
{"copyright_id":"0xc41ff8e9529dd1ac65a9ebffd039cacdfadf7d3007c1447c038f49c1a7e6a825","isrc":"GX3Q92144955","name":"Bagga Yute","registered_at":"2026-06-09T12:51:31Z","spotify_id":"4BHWOvdFcPLjubN0cowdUe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41ff8e9529dd1ac65a9ebffd039cacdfadf7d3007c1447c038f49c1a7e6a825. 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/4BHWOvdFcPLjubN0cowdUe.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/4BHWOvdFcPLjubN0cowdUe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e47f9ad0f5dba7647da84201b7188540a798a208b5546d17b3257e93fe79fe3. 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/4ka6zxv0KbqWnNC1xIb06C.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/4ka6zxv0KbqWnNC1xIb06C.
{"copyright_id":"0x4cc99ddb572f090ab76e0e1cfce9b7db3ec90f2f1cc52d476abe360488e957a4","isrc":"GBMA22149012","name":"Ting Tun Up Part II","registered_at":"2026-06-05T19:32:29Z","spotify_id":"31U9SPor09L20YFGRwL6n2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc99ddb572f090ab76e0e1cfce9b7db3ec90f2f1cc52d476abe360488e957a4. 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/31U9SPor09L20YFGRwL6n2.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/31U9SPor09L20YFGRwL6n2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7fe117522d575a9b336a1c982c9725bbc5d5a2ad5b6c29354d182925f9d263. 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/5zpakbmhNDSyu5Zej8DRbN.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/5zpakbmhNDSyu5Zej8DRbN.