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 0xa8d8924f880a4ce188c14d2d7fb5d0c77a91391cc62022c2240343a2c04a05ac. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/042063a1-de62-4d1a-b279-a69d6df263fa.json and https://artists.proofprofile.net/proofs/artist/042063a1-de62-4d1a-b279-a69d6df263fa.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 0x70f4a849f794ae7d76daaab4d6f2af98a175c07e75102338cbb0144c31a12f4c. 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/56es20uK9nOaNsPycHJojQ.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/56es20uK9nOaNsPycHJojQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9e67512f62062873da8f44c1a7c5a95a15619d9c432cde81990553b92d1944. 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/5BxmSC4WnS9aGCTSsQB68w.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/5BxmSC4WnS9aGCTSsQB68w.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f711e2745bf1653ecc51d8e2cab626a31886f17ce46f1a76678b2a05f88b2b3. 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/008VOhg7mzGV3II1lmtbTJ.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/008VOhg7mzGV3II1lmtbTJ.
{"copyright_id":"0x64d14bb3af77bf0a9fe3739ea44d63ded3741ba1b183adc044c0cb25575360d1","isrc":"QZHN32351851","name":"All Eyes On You","registered_at":"2026-06-07T14:31:19Z","spotify_id":"3LWR1CJxlB6NOKijwwAr9C","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d14bb3af77bf0a9fe3739ea44d63ded3741ba1b183adc044c0cb25575360d1. 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/3LWR1CJxlB6NOKijwwAr9C.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/3LWR1CJxlB6NOKijwwAr9C.
{"copyright_id":"0xfadebedff5363e23e4bd1e8be8d976c7de57da668937efd2680de2a049dbbc9d","isrc":"UKYRJ2000030","name":"Cross Your Mind","registered_at":"2026-06-09T09:26:26Z","spotify_id":"21zOcfmrcyHCYhpaAKXjbm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadebedff5363e23e4bd1e8be8d976c7de57da668937efd2680de2a049dbbc9d. 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/21zOcfmrcyHCYhpaAKXjbm.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/21zOcfmrcyHCYhpaAKXjbm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87309089de118d05d829d90ede8b48f576b899deef941a7eb15242fafb0df19. 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/19a9T7pY8QpTapcbhs6lxv.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/19a9T7pY8QpTapcbhs6lxv.
{"copyright_id":"0xd7e4ea2a6950ed7b248cbbd5f695ad7b221a4099427a1fd76694bced85ac26cb","isrc":"QM78L2200139","name":"sad all the time - Tyde Remix","registered_at":"2026-06-11T02:51:30Z","spotify_id":"2W89VjX2PlNAK1T9MIu555","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e4ea2a6950ed7b248cbbd5f695ad7b221a4099427a1fd76694bced85ac26cb. 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/2W89VjX2PlNAK1T9MIu555.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/2W89VjX2PlNAK1T9MIu555.
{"copyright_id":"0x7ba8958abf3571996e3ecfea2e14a6d829a304eefdfc57faa7f1ef7cf72b3542","isrc":"QM78L2200140","name":"sad all the time - edbl Remix","registered_at":"2026-06-22T04:48:04Z","spotify_id":"36r2N8F2yE5yhrvFILQFP6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba8958abf3571996e3ecfea2e14a6d829a304eefdfc57faa7f1ef7cf72b3542. 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/36r2N8F2yE5yhrvFILQFP6.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/36r2N8F2yE5yhrvFILQFP6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52674075919a286c5876d809ccdb307de778eced24dd63460f6284221c9c6670. 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/1dUFD3bZqHz1WXFL3DChSk.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/1dUFD3bZqHz1WXFL3DChSk.
{"copyright_id":"0x515bb9a4f773c1220632d34aebaf8f975d77a5623947ab8bb30de1692de13d41","isrc":"QZFZ22137078","name":"All Over Again - Remix","registered_at":"2026-06-07T14:31:25Z","spotify_id":"0gOYsTHfqXccEXUFQtfQzd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515bb9a4f773c1220632d34aebaf8f975d77a5623947ab8bb30de1692de13d41. 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/0gOYsTHfqXccEXUFQtfQzd.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/0gOYsTHfqXccEXUFQtfQzd.
{"copyright_id":"0xbc6f692d3298aea0befb8087e1e2ff06a62109044ac22e9825d52f32ae1188e5","isrc":"GBKPL2139472","name":"Colourblind - Indigo Eyes Remix","registered_at":"2026-06-08T13:28:19Z","spotify_id":"45VOxUOBuPodU1oxN2Tj0k","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6f692d3298aea0befb8087e1e2ff06a62109044ac22e9825d52f32ae1188e5. 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/45VOxUOBuPodU1oxN2Tj0k.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/45VOxUOBuPodU1oxN2Tj0k.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eec9836c660c598f180a71065cba3d3096e16273abd09a1c6ae521a36ff7645. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6o3Lho4fCnw0Cbs8jZkgfl.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/6o3Lho4fCnw0Cbs8jZkgfl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efee19e0d3ed861690d2f553b793a6e36c33bf1942026a028b974fe2882e42b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5SVtTkdBomBXuPfJ74rL1Z.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/5SVtTkdBomBXuPfJ74rL1Z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d616a51338e7e1fda78c792456a6f5444f72444b4bd4162fddf1ddaab8e946. 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/7npJInhJdCHgHVuH8MbugV.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/7npJInhJdCHgHVuH8MbugV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d616a51338e7e1fda78c792456a6f5444f72444b4bd4162fddf1ddaab8e946. 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/7l9u9r0IewXqHQfWYYu4nT.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/7l9u9r0IewXqHQfWYYu4nT.
{"copyright_id":"0xad6be78526519aa26de2c17a049d12e983d5bc4df08a01ce81fbf69a616d4325","isrc":"UKYRJ2000005","name":"Not About Love (Remix)","registered_at":"2026-06-24T16:39:49Z","spotify_id":"0cbRoxh8GV5tou7cwArRnH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6be78526519aa26de2c17a049d12e983d5bc4df08a01ce81fbf69a616d4325. 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/0cbRoxh8GV5tou7cwArRnH.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/0cbRoxh8GV5tou7cwArRnH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eec9836c660c598f180a71065cba3d3096e16273abd09a1c6ae521a36ff7645. 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/3lfZfR2yw8QwD96OtIgxYN.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/3lfZfR2yw8QwD96OtIgxYN.
{"copyright_id":"0x4b922c255fe7d6e5b88f6c8409ee0d24fe574275abd3f5720b1893f175c4a3f8","isrc":"GBKPL2143983","name":"Colourblind - Baker Aaron Refix","registered_at":"2026-06-11T16:25:26Z","spotify_id":"7MEoxdDeoNNtr4PkWfcTPG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b922c255fe7d6e5b88f6c8409ee0d24fe574275abd3f5720b1893f175c4a3f8. 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/7MEoxdDeoNNtr4PkWfcTPG.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/7MEoxdDeoNNtr4PkWfcTPG.
{"copyright_id":"0xc5b483b97b891c3cb6037c1688a1e0cd8affbfed8f5f6d08b815e1f35e9cf77d","isrc":"QM24S2302891","name":"not cute (Kelland Remix)","registered_at":"2026-06-05T08:36:05Z","spotify_id":"2Gt7Ygw6Kpn8Nfdvj280dn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b483b97b891c3cb6037c1688a1e0cd8affbfed8f5f6d08b815e1f35e9cf77d. 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/2Gt7Ygw6Kpn8Nfdvj280dn.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/2Gt7Ygw6Kpn8Nfdvj280dn.
{"copyright_id":"0xc572dd9af3752ceac9c9dbdc79331342fecadcbe5f89d04bec7b3c9916c7f418","isrc":"QM24S2302889","name":"ur face (Indigo Eyes Remix)","registered_at":"2026-06-04T11:36:48Z","spotify_id":"73PdruuBTuutIFrvHcAM9N","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc572dd9af3752ceac9c9dbdc79331342fecadcbe5f89d04bec7b3c9916c7f418. 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/73PdruuBTuutIFrvHcAM9N.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/73PdruuBTuutIFrvHcAM9N.
ruin my lyf (99makaveli Jersey Club Remix)
{"copyright_id":"0x29c5b13c94364d6494e44888e1fcfb7938ce064f82933e7f0613472e37c4346e","isrc":"QM24S2302887","name":"ruin my lyf (99makaveli Jersey Club Remix)","registered_at":"2026-06-23T05:53:41Z","spotify_id":"3jeXlLdsdXoDadmSlagxDU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c5b13c94364d6494e44888e1fcfb7938ce064f82933e7f0613472e37c4346e. 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/3jeXlLdsdXoDadmSlagxDU.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/3jeXlLdsdXoDadmSlagxDU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e9a92f1083da8b55e16c4c08d4204437aec2ef97ff15aa4a149f1a6bc950e8. 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/0H6PEAC7DUOFvBWNAUQCFz.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/0H6PEAC7DUOFvBWNAUQCFz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c21b9ddff5239220f744ad83ac7e00442b5f7ab21a58ed9f4713145ce37c8d. 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/06WaCojYXpaejtCrFj4V9a.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/06WaCojYXpaejtCrFj4V9a.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e2ae271dbb35ee628e40e65ce0e01f8ae264e2d160562efa67689c869c38fc. 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/0GwrjrvQ8l82g5W6EF8QNc.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/0GwrjrvQ8l82g5W6EF8QNc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34dcd8738212a8f23ab6977207a5f86d3926a9cce083cbdb1aca087d8af77f0e. 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/6czajZblOgP24miq1kwxZt.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/6czajZblOgP24miq1kwxZt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf3df9278a5edd31769b710429d638af2b0d81aedfa5da80518d767dddbbb5e. 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/6LAtJoYz8dRHjyTSCtlMQf.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/6LAtJoYz8dRHjyTSCtlMQf.