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 0xc846e603bd401a20ff979979396c5c2dfb396b5149cab256e5d4d3ba13280e39. 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/8fe62fb1-912d-4ad1-b58f-8413d86af53a.json and https://artists.proofprofile.net/proofs/artist/8fe62fb1-912d-4ad1-b58f-8413d86af53a.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 0xa8ada0090c45a92fc47f09fc05207812a347b207d8630b4aa38854af921370bd. 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/3IRHe817G1XFHIJ2z02dh2.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/3IRHe817G1XFHIJ2z02dh2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a93bdb08570d4f53cec06729444c9d3a529a9fbfa63e9b3681bb95e8a4dbb55. 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/2etkChY1kPZsnF2Romnr7Z.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/2etkChY1kPZsnF2Romnr7Z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc04861c7d4cf47f932e55b39e2d82fd2698749da3c334d95a6392f1bd835d1. 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/3FK7X382AVhd0ytVspHK4f.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/3FK7X382AVhd0ytVspHK4f.
{"copyright_id":"0xf1fa548ce9dbe974292fa577e09abe1d8cfa90b203a85a091c40ee42dfb0717a","isrc":"MX2971601240","name":"Vete a buscar a aquél","registered_at":"2026-06-08T11:16:35Z","spotify_id":"3R0faDahcYCoGWlt0KuG5x","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fa548ce9dbe974292fa577e09abe1d8cfa90b203a85a091c40ee42dfb0717a. 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/3R0faDahcYCoGWlt0KuG5x.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/3R0faDahcYCoGWlt0KuG5x.
La Sombra (Medley) - El Sancho / El Sapo
{"copyright_id":"0x602b0c1746631533bee7f63ae0529c8f0fbef1b3fd3e7c83dadf6f916164029f","isrc":"MX2971601242","name":"La Sombra (Medley) - El Sancho / El Sapo","registered_at":"2026-06-26T19:52:06Z","spotify_id":"7FAlpBZDyAunpNrLupNKBI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602b0c1746631533bee7f63ae0529c8f0fbef1b3fd3e7c83dadf6f916164029f. 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/7FAlpBZDyAunpNrLupNKBI.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/7FAlpBZDyAunpNrLupNKBI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170a8b281b0627cd5ea0c96a9a500817c590d8f5ec1b188917de96a1023613e0. 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/0IQbDOrnZ01SNApO9XcBkp.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/0IQbDOrnZ01SNApO9XcBkp.
{"copyright_id":"0xee9c9c5609eb45bfb1eb992abde672d0a6b603591d63ce6d32ae57ba416e01dd","isrc":"MX2971601243","name":"Ahora Dile","registered_at":"2026-06-23T10:31:04Z","spotify_id":"4H13N6qGxeEMPdeNBvWrQR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9c9c5609eb45bfb1eb992abde672d0a6b603591d63ce6d32ae57ba416e01dd. 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/4H13N6qGxeEMPdeNBvWrQR.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/4H13N6qGxeEMPdeNBvWrQR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a2c370eb6fd94e00664a6fa2e1af061177793cc3b90490b6fc2655dbf52af6. 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/0288ifjUZerlP1bOFlyBOY.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/0288ifjUZerlP1bOFlyBOY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666b075442d3cca671194234d8163c23ab240bec90a68b569f4dac2702fa1c28. 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/6Wgfma9gC04iyaImq1W7IC.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/6Wgfma9gC04iyaImq1W7IC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b0e681900342312a57ca768cae83a5ab2c01348135926950a99b39fc02abfa. 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/5cEOq3rwTYzexLsRCt1MIZ.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/5cEOq3rwTYzexLsRCt1MIZ.
{"copyright_id":"0x2456d564abcc92e33da4657382d7cacb3239620fae7309e1ef2bc525481d7f0b","isrc":"MX2971601248","name":"Me Vuelvo A Enamorar","registered_at":"2026-06-19T09:06:40Z","spotify_id":"4UBpYrqgAGcwXozINOyX00","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2456d564abcc92e33da4657382d7cacb3239620fae7309e1ef2bc525481d7f0b. 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/4UBpYrqgAGcwXozINOyX00.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/4UBpYrqgAGcwXozINOyX00.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07eefbd8e39da0b28bc7b2750a06ebe76f6e86118ddff5ba780f2ec4c222b36d. 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/0nwlyoc2CshDPa94sqQ97l.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/0nwlyoc2CshDPa94sqQ97l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a96db3309ab4e4f88a884bda3bbe264831cc6155a4304d742a0bfccfa92569. 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/1xMdRGWwSD3MzfTfoPDtMY.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/1xMdRGWwSD3MzfTfoPDtMY.
{"copyright_id":"0xffd5e8403302e3cf812e1af8df8675c42f68fa243c65c954b1d69e17b8e3e25b","isrc":"MX2971300554","name":"El Amor Por Ella","registered_at":"2026-06-21T09:21:34Z","spotify_id":"4pGGfHNXBtmmgwj0xFfkk7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd5e8403302e3cf812e1af8df8675c42f68fa243c65c954b1d69e17b8e3e25b. 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/4pGGfHNXBtmmgwj0xFfkk7.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/4pGGfHNXBtmmgwj0xFfkk7.
{"copyright_id":"0x179109bf44a758ec19cf25bb734d5b4e76fd93de56fccdbbe1ac76eb71f5f88b","isrc":"MX2971300555","name":"El Baile de las Nenas","registered_at":"2026-06-09T09:06:25Z","spotify_id":"5osgNnMoEnpt67aUmDwfQ1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179109bf44a758ec19cf25bb734d5b4e76fd93de56fccdbbe1ac76eb71f5f88b. 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/5osgNnMoEnpt67aUmDwfQ1.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/5osgNnMoEnpt67aUmDwfQ1.
{"copyright_id":"0xc8683a1ad578c5e57bcd3dfd9b7df2b9ee2cd90aa3d1a872943a142cbd951e56","isrc":"MX2971300560","name":"Házme Una Señal","registered_at":"2026-06-07T08:19:31Z","spotify_id":"3wrdvIR1Scvj7TKLFdmk4c","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8683a1ad578c5e57bcd3dfd9b7df2b9ee2cd90aa3d1a872943a142cbd951e56. 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/3wrdvIR1Scvj7TKLFdmk4c.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/3wrdvIR1Scvj7TKLFdmk4c.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719e3554b1399fd3a02830bf9febe441c96e26d39e76c54c57b7dd27b96c3566. 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/20O1hzerctrkXJQXPiWc3Q.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/20O1hzerctrkXJQXPiWc3Q.
{"copyright_id":"0xa0201dcf1478df0d831505967ca53aff03fadaaf483ce8b813cda39439584263","isrc":"MX2971300552","name":"Las Hijas de Don Simón","registered_at":"2026-06-11T13:47:18Z","spotify_id":"1YzFSWmRVUlrYeadgGb0Ql","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0201dcf1478df0d831505967ca53aff03fadaaf483ce8b813cda39439584263. 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/1YzFSWmRVUlrYeadgGb0Ql.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/1YzFSWmRVUlrYeadgGb0Ql.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf362e0b2c8494e16ce1577bdd719f23d538bc6dd6b88d9f67b25ee9c62539978. 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/0QhphEVbQUyHKhEQOKBmkI.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/0QhphEVbQUyHKhEQOKBmkI.
{"copyright_id":"0xf3a25dd24ebc90d702d20f48f2254c35f17acf1cdd88932972c700b16d6dd39f","isrc":"MX2972320418","name":"Cómo Estás Tú","registered_at":"2026-06-27T05:52:46Z","spotify_id":"5leTDmYNBWWMriqmdPBTAH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a25dd24ebc90d702d20f48f2254c35f17acf1cdd88932972c700b16d6dd39f. 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/5leTDmYNBWWMriqmdPBTAH.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/5leTDmYNBWWMriqmdPBTAH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cc1a6de63b635289eb6c67321e355adf0773e954c8aa1c2c8117ef384debbf. 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/3aLyem0M1b9mQD56HagRuW.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/3aLyem0M1b9mQD56HagRuW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957e62b3ab18c8f524f1e8070a923063fdd5b679e75753da3dcc153d2b7ae4a0. 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/1frjCuC10uQefNGClhEmQF.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/1frjCuC10uQefNGClhEmQF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568cecdf8e4a9d81286ee711d87735238feb5900dbe910a029f17327e0c16bb4. 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/6osdCQy6WmYqaNxXyHRbCl.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/6osdCQy6WmYqaNxXyHRbCl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54c7a8183d2e529e940fbe4d9df0efa9af6551965914e63dee7577df34477e3. 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/7gALkO69wGqVHNDcUYr7eA.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/7gALkO69wGqVHNDcUYr7eA.
Pura Crema Nada De Salsa "Lado B" (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d3b676088e0ef93b07e7619a752e998e06c4ac2be941eefef3e485037fa83e. 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/4TnBC95bjyCJ4KJbgtbNaT.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/4TnBC95bjyCJ4KJbgtbNaT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff6d5b818e44031dcb85c8b90f6545129457304f2f798d53f6766203cb4c248. 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/4634sEIrz8vP04vzi3ByOq.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/4634sEIrz8vP04vzi3ByOq.