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 0xae421da7129bc6993ef0aef1bed313825666d4b194279514f8ed22a221f14b95. 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/0e076012-140b-4575-9760-8311ea5782b1.json and https://artists.proofprofile.net/proofs/artist/0e076012-140b-4575-9760-8311ea5782b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chapetona (Francisco Allendes & Pablito Pesadilla Remix)
Chapetona - Francisco Allendes, Pablito Pesadilla Remix
{"copyright_id":"0xbf67430164dcdbf5f3636b0d6b8618be0dae07ee05a1b0bd546e607ee11b8ee7","isrc":"NLML62300146","name":"Chapetona - Francisco Allendes, Pablito Pesadilla Remix","registered_at":"2026-06-27T01:31:30Z","spotify_id":"6RCwPJ2mYbapVc62qryGTC","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 0xbf67430164dcdbf5f3636b0d6b8618be0dae07ee05a1b0bd546e607ee11b8ee7. 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/6RCwPJ2mYbapVc62qryGTC.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/6RCwPJ2mYbapVc62qryGTC.
{"copyright_id":"0xd5ff4af4490e6ced781e2666d78a565e62097ed11def32cfc4b0c3f140d6b702","isrc":"QMDA62454853","name":"Flaite Pa Ti - Remix","registered_at":"2026-06-04T11:54:28Z","spotify_id":"1ybLFVVpQvQmfhRSENstil","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ff4af4490e6ced781e2666d78a565e62097ed11def32cfc4b0c3f140d6b702. 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/1ybLFVVpQvQmfhRSENstil.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/1ybLFVVpQvQmfhRSENstil.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec28b53ca8192a51459a8c1638be1abc87f5d4918e399b0a968cdab1a4e1295. 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/0kTMK4gNFfLXaTb62w1UaJ.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/0kTMK4gNFfLXaTb62w1UaJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93fd4d31457390e20486ec7f4cb2beeb41d98c3d9dd177a594fb5be9c5bf6884. 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/1csXmch0iAC6INGXOrblsy.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/1csXmch0iAC6INGXOrblsy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad872aedd2362e526348667afa216f5b53283f09360bb421edba65ac8765a37. 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/44f6iQsFMOSYzEbiVQrP4q.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/44f6iQsFMOSYzEbiVQrP4q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cda2781659957d9fd644a8dd3b63207dc1d6373078640b130aa09489d5de8cf. 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/6m0P6gz01AHTKkjFZXoO9f.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/6m0P6gz01AHTKkjFZXoO9f.
{"copyright_id":"0x11c1fae7bb174fff357e44def13b1168b9e4f2970dfc8f22cc463b8b3c94833c","isrc":"CLAA22300442","name":"bonito, despacio","registered_at":"2026-06-08T12:07:33Z","spotify_id":"4z99ip2HqXSJFdlz9jiaJB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c1fae7bb174fff357e44def13b1168b9e4f2970dfc8f22cc463b8b3c94833c. 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/4z99ip2HqXSJFdlz9jiaJB.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/4z99ip2HqXSJFdlz9jiaJB.
{"copyright_id":"0x60987963d7d120969de88a9d5b6bf0da26864991d10159b4d67261f0600871ce","isrc":"QMGR32010597","name":"Desbloquea Con esta Guaracha","registered_at":"2026-06-08T11:59:14Z","spotify_id":"4wzuwJU7LVIt7ejTLBuyJP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60987963d7d120969de88a9d5b6bf0da26864991d10159b4d67261f0600871ce. 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/4wzuwJU7LVIt7ejTLBuyJP.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/4wzuwJU7LVIt7ejTLBuyJP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369199f742fb0ed1b763f950bf08419284089950f881e832b0a1974c283c3a15. 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/0hQIOOAM7EKi6y5Z9C2uVW.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/0hQIOOAM7EKi6y5Z9C2uVW.
{"copyright_id":"0xb2d08e8b20bf6e1890f88b5a02f98b0effb3adc1359fca61face5b83a3474d15","isrc":"QMDA62440121","name":"El Almacén #03","registered_at":"2026-06-06T16:11:06Z","spotify_id":"2Jw1x8BqCVC8uWxVylRW7j","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d08e8b20bf6e1890f88b5a02f98b0effb3adc1359fca61face5b83a3474d15. 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/2Jw1x8BqCVC8uWxVylRW7j.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/2Jw1x8BqCVC8uWxVylRW7j.
{"copyright_id":"0xbd0f5015f251ed8d45f44ed15b3f333e3fb661d7bb46705c0b6d35e1d854ee1b","isrc":"QZNJZ2455413","name":"Juntos por la Teletón","registered_at":"2026-06-11T09:31:01Z","spotify_id":"0x53vJwaI2hWa077jKQdkZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0f5015f251ed8d45f44ed15b3f333e3fb661d7bb46705c0b6d35e1d854ee1b. 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/0x53vJwaI2hWa077jKQdkZ.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/0x53vJwaI2hWa077jKQdkZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ac23d365006b5f453b2c2dcc35cd6d1e2aec07341f3b4be9f611d880e7b242. 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/6E9M1v8P1APKABt6qBbdDo.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/6E9M1v8P1APKABt6qBbdDo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1e7576ab4da175b465821e8b12cb9926595cc3c882384ef340bf82663d9189. 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/3uuN0ROJIng52dn3uowKUE.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/3uuN0ROJIng52dn3uowKUE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ff226d7b8f77f49bf88a8013e24a508e2032313af1da7d78d2fa0218f0b7db. 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/7di4buUiKUKpFw8ht5vVeB.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/7di4buUiKUKpFw8ht5vVeB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74bc28b3bca6178aed9ca03335b9414baba0ef17661c2e319518626ca0db8ca. 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/2bMx7EU3MWV83LWa8MgLhs.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/2bMx7EU3MWV83LWa8MgLhs.