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 0x3a736887ae981faaed28dd2a46dcaef93bdcec3af2cad2ecc28d54b3401a3b47. 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/51f6b0e1-da45-4632-a96d-e6d94b2f37f3.json and https://artists.proofprofile.net/proofs/artist/51f6b0e1-da45-4632-a96d-e6d94b2f37f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x0eefeed547e508ca2ef3588cc75c233559cebbd3c79bed709cb0b32453a3dc4a","isrc":"USA2P2251039","name":"Los Diamantones (En Vivo)","registered_at":"2026-06-09T21:13:46Z","spotify_id":"1Dcs4sIcWy5lne4ijVFvZS","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 0x0eefeed547e508ca2ef3588cc75c233559cebbd3c79bed709cb0b32453a3dc4a. 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/1Dcs4sIcWy5lne4ijVFvZS.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/1Dcs4sIcWy5lne4ijVFvZS.
{"copyright_id":"0xddde2f5301512ef78b2e9b98416dccd749c915058cd5a062aeddda4d5693141d","isrc":"QM6N22002416","name":"Conmigo No Jugarán","registered_at":"2026-06-09T21:15:25Z","spotify_id":"2cwFZeZQeLMqDOL54IPUTJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddde2f5301512ef78b2e9b98416dccd749c915058cd5a062aeddda4d5693141d. 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/2cwFZeZQeLMqDOL54IPUTJ.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/2cwFZeZQeLMqDOL54IPUTJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26271529ee788dfa33de7e433998c2d6b133f2767fc1f9832a1d087610a71529. 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/0TEeSGok2zPVAAH5vf8Zvm.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/0TEeSGok2zPVAAH5vf8Zvm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6b4de871e68e63498b34e6048946570fa7b30033bd1f78393e0a923f0347ce. 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/6eAb5Pv7t2K1JR3vctRzQ9.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/6eAb5Pv7t2K1JR3vctRzQ9.
Unos Gramos de Motita (feat. Revolver Cannabis) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df66d87b58e3a564be92444dafa73fc26019621a075c023ad9eb60cb486e936. 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/4qSVT4540u1a8SRfpMFtYm.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/4qSVT4540u1a8SRfpMFtYm.
{"copyright_id":"0x67ec631eee7f0943f88e8d6ab58e00134fcc7ef3f0ead7314f019ee2a55f2cfe","isrc":"QZNFJ2306985","name":"Dime Ya","registered_at":"2026-06-08T06:11:01Z","spotify_id":"14jfifo7CTWMWiogwX5UK2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ec631eee7f0943f88e8d6ab58e00134fcc7ef3f0ead7314f019ee2a55f2cfe. 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/14jfifo7CTWMWiogwX5UK2.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/14jfifo7CTWMWiogwX5UK2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7038737b7f21d51df7c12d87708896e1e87c8afab8b89c45fafa3a579f05e9f1. 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/5Y5ML2W5A6uiFzcRV4jOMG.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/5Y5ML2W5A6uiFzcRV4jOMG.
{"copyright_id":"0xa11a645d5c79a9d9c2bbb87816a18ff263dd3ff5f8ea11666c92753be064e365","isrc":"USA2P2340642","name":"Subiendo De Nivel","registered_at":"2026-06-21T11:04:37Z","spotify_id":"4GU477TisoZf5vtaYaNVyN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11a645d5c79a9d9c2bbb87816a18ff263dd3ff5f8ea11666c92753be064e365. 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/4GU477TisoZf5vtaYaNVyN.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/4GU477TisoZf5vtaYaNVyN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f1aa02bd57ef9cebc25bf29fe7a653869ef02c8801af3a9b9ba32c83e24425. 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/6k3kNitCCPZ0JNeJNqhPXK.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/6k3kNitCCPZ0JNeJNqhPXK.
{"copyright_id":"0x97a46dac7baef5ebc23584809461db42ba430f53d5400c85b9af2fed3f9132db","isrc":"QZTPX2240582","name":"El Kio","registered_at":"2026-06-07T22:32:13Z","spotify_id":"5NipNHamRV2cZTjX8ZC5ul","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a46dac7baef5ebc23584809461db42ba430f53d5400c85b9af2fed3f9132db. 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/5NipNHamRV2cZTjX8ZC5ul.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/5NipNHamRV2cZTjX8ZC5ul.
{"copyright_id":"0xb080537ae0ffd46972bba1c334b980d9bf29ad0598e9d0c5f96e70e2f6f5c490","isrc":"QMFMF2110402","name":"La Rubicon","registered_at":"2026-06-19T18:05:10Z","spotify_id":"6rfFYCdsOGsgPNKgvUlXMU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb080537ae0ffd46972bba1c334b980d9bf29ad0598e9d0c5f96e70e2f6f5c490. 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/6rfFYCdsOGsgPNKgvUlXMU.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/6rfFYCdsOGsgPNKgvUlXMU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47694dbceeb3c1406aae04749cfac842228fc91a968c129df9f42e2a9284bee. 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/10gEHWsFbYVws3l478nCUB.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/10gEHWsFbYVws3l478nCUB.
{"copyright_id":"0xd47694dbceeb3c1406aae04749cfac842228fc91a968c129df9f42e2a9284bee","isrc":"QM6P42128001","name":"En la Mamalona","registered_at":"2026-06-26T01:22:34Z","spotify_id":"0AhBT6y3gWcduJ1ufOVM3z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47694dbceeb3c1406aae04749cfac842228fc91a968c129df9f42e2a9284bee. 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/0AhBT6y3gWcduJ1ufOVM3z.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/0AhBT6y3gWcduJ1ufOVM3z.