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 0xd4b33e2b75f547df9051b222ba384a75aba24a0378148a9886fd8a618ba46c1d. 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/09c46f4c-905e-4946-8426-2fc934dc3b96.json and https://artists.proofprofile.net/proofs/artist/09c46f4c-905e-4946-8426-2fc934dc3b96.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 0x7c54a2eb83a4d5fd927a95fe86eecfc0a1729897d45739bb1e83a7537833cfa3. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1M6h2Ld2dL4RhUNDRCNRw4.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/1M6h2Ld2dL4RhUNDRCNRw4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67c81dddb0bff06ff6a116811b6fc6149754e1e3f670e38d59739e521274a55. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3cnQTFN0oxzXm6OyoTLT4I.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/3cnQTFN0oxzXm6OyoTLT4I.
{"copyright_id":"0xab7e9f8465cc8baf9f3be30e57671823c457cbaa5a07e692ef9076c231e4d8f5","isrc":"USCG60350144","name":"Espíritu Santo","registered_at":"2026-06-29T10:30:57Z","spotify_id":"7vxKDB8fxoc2JnPUkhCv4Z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7e9f8465cc8baf9f3be30e57671823c457cbaa5a07e692ef9076c231e4d8f5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7vxKDB8fxoc2JnPUkhCv4Z.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/7vxKDB8fxoc2JnPUkhCv4Z.
{"copyright_id":"0xa666d7fdacb33c511b78cb4513148e257d310a36c75bd38d334ba1c35039aa8f","isrc":"USCG60550327","name":"La Nina De Tus Ojos","registered_at":"2026-06-01T08:07:46Z","spotify_id":"4B6Dq9yCXAyZUzGH8ULq1N","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa666d7fdacb33c511b78cb4513148e257d310a36c75bd38d334ba1c35039aa8f. 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/4B6Dq9yCXAyZUzGH8ULq1N.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/4B6Dq9yCXAyZUzGH8ULq1N.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa694be6c08c199819b9e68b17f6d5b55f09659620842f2a82d92da85e87ffa9d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4VcJuHP2oXumxt9PAHuQu3.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/4VcJuHP2oXumxt9PAHuQu3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5ca7ae849186ccdfe2b168d3870231c98ccfd723a0e8c28eb52bc23a794b99. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3MzipGUpCtDozVbiCrmyZQ.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/3MzipGUpCtDozVbiCrmyZQ.
Padre Eres Mi Consuelo (Versión Daniela)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe2d80139e79ebca192a6835703a98f6c2ed7d506b737ac47b79cd36f93ffb0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0SaXbEDJqznbrpIrMRlbzb.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/0SaXbEDJqznbrpIrMRlbzb.
{"copyright_id":"0x0ace150a9d416bfcceed6a40818a4c4a32cc990a99e6d700d2f3ea9b81cdf859","isrc":"USANG2283211","name":"LA MESA","registered_at":"2026-06-29T10:34:36Z","spotify_id":"2mxOkEFiWBynV9pNolCZBn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ace150a9d416bfcceed6a40818a4c4a32cc990a99e6d700d2f3ea9b81cdf859. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2mxOkEFiWBynV9pNolCZBn.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/2mxOkEFiWBynV9pNolCZBn.
{"copyright_id":"0xf1033052ccd4d24d0a5288eef63287ab9e9d1c3f0109e89ce64ec2bb6baec0dd","isrc":"US6WP1800031","name":"Consumado Es - En Vivo","registered_at":"2026-06-18T11:42:20Z","spotify_id":"4wIDJoU8OX3mRPgH55QhBV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1033052ccd4d24d0a5288eef63287ab9e9d1c3f0109e89ce64ec2bb6baec0dd. 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/4wIDJoU8OX3mRPgH55QhBV.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/4wIDJoU8OX3mRPgH55QhBV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcac4d58e1fca0149a2052c51fb923b7ab22c5549dfc824370bc6f1353c78bcb. 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/4A33Mib87lxgRL1VqjyHmo.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/4A33Mib87lxgRL1VqjyHmo.
{"copyright_id":"0xdc4d56f47db3212ba2edc9afa8e585fa2098ecb9a1222a0701b9aa2a0b7bc525","isrc":"GBWUL1810186","name":"La Niña de Tus Ojos","registered_at":"2026-06-05T08:47:17Z","spotify_id":"2JEMprvgG6XT5mRYRbOsZm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4d56f47db3212ba2edc9afa8e585fa2098ecb9a1222a0701b9aa2a0b7bc525. 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/2JEMprvgG6XT5mRYRbOsZm.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/2JEMprvgG6XT5mRYRbOsZm.
Libertad (Freedom) [feat. Aaron Moses, Daniel Calveti & Melody Adorno]
{"copyright_id":"0x881dbacdd50317c842266e756633ce5ed9914a757547ab952fe70d6ec8071307","isrc":"QMFME2148538","name":"Libertad (Freedom) [feat. Aaron Moses, Daniel Calveti & Melody Adorno]","registered_at":"2026-06-07T13:14:10Z","spotify_id":"5gMKGf48N2U58ofepY3SWC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881dbacdd50317c842266e756633ce5ed9914a757547ab952fe70d6ec8071307. 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/5gMKGf48N2U58ofepY3SWC.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/5gMKGf48N2U58ofepY3SWC.
Libertad (Spontaneous) [feat. Aaron Moses, Daniel Calveti & Melody Adorno]
{"copyright_id":"0x4614dddfcb1e7945b4fe03d6478feb4f33f4e263527fb82ab93d40528bcccdcb","isrc":"QMFME2172567","name":"Libertad (Spontaneous) [feat. Aaron Moses, Daniel Calveti & Melody Adorno]","registered_at":"2026-06-19T10:15:49Z","spotify_id":"2PJ0j54IpdSKIFr4EM0d00","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4614dddfcb1e7945b4fe03d6478feb4f33f4e263527fb82ab93d40528bcccdcb. 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/2PJ0j54IpdSKIFr4EM0d00.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/2PJ0j54IpdSKIFr4EM0d00.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d51352a850ca319b79c3b018062280c594220b3f83b441a87f5469224a7d46. 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/2XjDhJaZnBT2G2a08Gtbky.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/2XjDhJaZnBT2G2a08Gtbky.
Top 25 Cantos De Alabanza (Edición 2014)
{"copyright_id":"0x87812ee9c9492ebe75c258ea227355de38d6337e59a4dc030e23f4499067dc3a","isrc":"USANG2111720","name":"Dios Manda Lluvia 20 Year Anniversary","registered_at":"2026-06-04T12:40:39Z","spotify_id":"0Yw6hYsp3mCYGEZWoMkOj6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87812ee9c9492ebe75c258ea227355de38d6337e59a4dc030e23f4499067dc3a. 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/0Yw6hYsp3mCYGEZWoMkOj6.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/0Yw6hYsp3mCYGEZWoMkOj6.
Dios Manda Lluvia 20 Year Anniversary (Pista)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0093a12a38c44032205be99223803b0c5ab2aea377c913fbd5d14772b9779448. 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/0OpkOBg9XPmS9Qqr1zWiAQ.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/0OpkOBg9XPmS9Qqr1zWiAQ.
Rindo Mis Coronas / Yo Me Rindo a Él - Chapel Sessions en Español
{"copyright_id":"0xdc04d2d479a60c7f5faf5d8ca26e9b6d77bf7fa5838a7ed6e683c2664f15fa2f","isrc":"US6WP2400053","name":"Rindo Mis Coronas / Yo Me Rindo a Él - Chapel Sessions en Español","registered_at":"2026-06-10T04:17:35Z","spotify_id":"1uTEeDYC5ajRltTUpSFYfd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc04d2d479a60c7f5faf5d8ca26e9b6d77bf7fa5838a7ed6e683c2664f15fa2f. 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/1uTEeDYC5ajRltTUpSFYfd.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/1uTEeDYC5ajRltTUpSFYfd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d51352a850ca319b79c3b018062280c594220b3f83b441a87f5469224a7d46. 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/2hFgKcsBLPPw9JxHUFAe8o.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/2hFgKcsBLPPw9JxHUFAe8o.
{"copyright_id":"0xdc04d2d479a60c7f5faf5d8ca26e9b6d77bf7fa5838a7ed6e683c2664f15fa2f","isrc":"US6WP2400053","name":"Rindo Mis Coronas / Yo Me Rindo a Él - Chapel Sessions en Español","registered_at":"2026-06-10T04:17:35Z","spotify_id":"3G1WrdCtEHslkoRaouQBCF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc04d2d479a60c7f5faf5d8ca26e9b6d77bf7fa5838a7ed6e683c2664f15fa2f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3G1WrdCtEHslkoRaouQBCF.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/3G1WrdCtEHslkoRaouQBCF.