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 0x46db393379a4b01371cf9a1905e1dc9cd1cf317a57d4388125e1b6f5b4deea4d. 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/ce583d0b-3546-4135-9c7f-5930e1e70cd2.json and https://artists.proofprofile.net/proofs/artist/ce583d0b-3546-4135-9c7f-5930e1e70cd2.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 0x43306d4c27fab5dcedb5a9eed20dff5c4866c4b14008625524d8f4745a678c53. 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/7IRh0NBDtxVcEOP81oLaav.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/7IRh0NBDtxVcEOP81oLaav.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132dc6e42abf572ccfc61df81a6449a49abf940adf09161ec6d1724afd831212. 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/29wchJGE9RnGaQoi6MfHnD.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/29wchJGE9RnGaQoi6MfHnD.
Siempre Seré (feat. Secreto El Famoso Biberón & Pacho El Antifeka)
{"copyright_id":"0x3915bab1ef56deede2e4c1167a989b094662567c5f9af1bb68dfd03a5b1f476e","isrc":"USSD12100713","name":"Siempre Seré (feat. Secreto El Famoso Biberón & Pacho El Antifeka)","registered_at":"2026-06-05T11:47:30Z","spotify_id":"3AbJqOEvApkTuFKl1cIzTK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3915bab1ef56deede2e4c1167a989b094662567c5f9af1bb68dfd03a5b1f476e. 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/3AbJqOEvApkTuFKl1cIzTK.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/3AbJqOEvApkTuFKl1cIzTK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c542528a73ff839d41b94772afdf89b8e9d7b470e8ef9462a82f35cc58c4acd. 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/3DyiAk1BzIF8rq9rimypG4.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/3DyiAk1BzIF8rq9rimypG4.
{"copyright_id":"0x97cc4bf11b43a97fe715de3952a264c157292a925a7d4c843580c20428ba85e1","isrc":"USASN1302294","name":"Hablan De Nosotros/Bandoleros","registered_at":"2026-06-23T00:31:45Z","spotify_id":"5l1pybcOsqvmjyNvm23USU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cc4bf11b43a97fe715de3952a264c157292a925a7d4c843580c20428ba85e1. 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/5l1pybcOsqvmjyNvm23USU.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/5l1pybcOsqvmjyNvm23USU.
{"copyright_id":"0xd0d073899fb1043eeb6bb3bd9bd5cfcfe2cdbfabc4ce63f917f36d9e0475eaf7","isrc":"QM6N21941660","name":"Versace - Remix","registered_at":"2026-06-18T12:04:08Z","spotify_id":"0lhOX6LaImVlcGvCMX6lOh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d073899fb1043eeb6bb3bd9bd5cfcfe2cdbfabc4ce63f917f36d9e0475eaf7. 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/0lhOX6LaImVlcGvCMX6lOh.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/0lhOX6LaImVlcGvCMX6lOh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b64119fa59887c5d15febd04beb4251ebac56b1a0211150f280a1a7d20306fa. 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/2rzVBB36fXh4iFYcpT5BMK.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/2rzVBB36fXh4iFYcpT5BMK.
{"copyright_id":"0xd7f7b0e9fef7c712c11d78feb56d57cd10b39ed38c61e1d47fe42b0be40b0209","isrc":"QZ5FN2124331","name":"No Me Importa","registered_at":"2026-06-06T05:11:09Z","spotify_id":"3XrAOTkJU0fnNwld8maKC5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f7b0e9fef7c712c11d78feb56d57cd10b39ed38c61e1d47fe42b0be40b0209. 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/3XrAOTkJU0fnNwld8maKC5.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/3XrAOTkJU0fnNwld8maKC5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd13cd061049a618e570d5f5eba0f1b7b31e6a353fbe8e64b25c44856f416d1. 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/6Q5wOJd2LBCKCLiIj38u99.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/6Q5wOJd2LBCKCLiIj38u99.
{"copyright_id":"0x4fb8ee6a3003a8e9c33d0c30e87dfa6ff24a1a341454dc4c6723d51a0f1670e2","isrc":"QZ5FN2071248","name":"Aficia De Un Chuky - Remix","registered_at":"2026-06-06T11:21:13Z","spotify_id":"65dlwjUKIKWtohDjF1P8O4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb8ee6a3003a8e9c33d0c30e87dfa6ff24a1a341454dc4c6723d51a0f1670e2. 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/65dlwjUKIKWtohDjF1P8O4.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/65dlwjUKIKWtohDjF1P8O4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6de9895d12dca34d39e42e2ddb579734ae309bcf8ac72e09128b29155713ed. 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/3VT90yDEnIxbNWhTkVdiuF.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/3VT90yDEnIxbNWhTkVdiuF.
{"copyright_id":"0x7a90d924fb3a9d65d21ae27004f3ce34b2ce505a4ab6822c71fc720e9a6d0ee7","isrc":"TCACM1643134","name":"No Pue Killate","registered_at":"2026-06-25T22:55:19Z","spotify_id":"4nK1phLVSo7sy7sp4TqxvY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a90d924fb3a9d65d21ae27004f3ce34b2ce505a4ab6822c71fc720e9a6d0ee7. 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/4nK1phLVSo7sy7sp4TqxvY.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/4nK1phLVSo7sy7sp4TqxvY.
{"copyright_id":"0xb8d0d6bb3bcfbfa4eb10b83e270b76bb1a90483bf045446885a43a4eea8a9797","isrc":"QZES62070052","name":"Me Siento Solo","registered_at":"2026-06-06T17:49:17Z","spotify_id":"5IhpeOyVDG4xSMdzVNFrZ5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d0d6bb3bcfbfa4eb10b83e270b76bb1a90483bf045446885a43a4eea8a9797. 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/5IhpeOyVDG4xSMdzVNFrZ5.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/5IhpeOyVDG4xSMdzVNFrZ5.
{"copyright_id":"0xc15f488d71a8af489b5ccb841cfce7d89ca4f2cdf32a295f08b991eab768738e","isrc":"QZNJY2343167","name":"El Chamakito - Remix","registered_at":"2026-06-08T17:44:42Z","spotify_id":"2VTXNYtsfFqaPyQAzOH1qg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15f488d71a8af489b5ccb841cfce7d89ca4f2cdf32a295f08b991eab768738e. 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/2VTXNYtsfFqaPyQAzOH1qg.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/2VTXNYtsfFqaPyQAzOH1qg.