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 0x2e0b8efb11e673730430f342938eee13339417ca2f25d7997389c14dacc86352. 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/51695986-ad8b-4c35-a3b1-05e3e6693e02.json and https://artists.proofprofile.net/proofs/artist/51695986-ad8b-4c35-a3b1-05e3e6693e02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Una hora non potuistis, ITV 143: No. 1, Una hora non potuistis vigilare mecum - Live
Mass in A Major, Op. 12, FWV 61: V. Panis angelicus - Live
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 0x83272487b8838700ab121493f07d2f6860b52e634c352771ed88e66e716e9fe6. 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/1QR8CvYbc1N395mppp4WyK.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/1QR8CvYbc1N395mppp4WyK.
Két karácsonyi motette: No. 1, O magnum mysterium
Két karácsonyi motette: No. 2, Hodie Christus natus est
4 geistliche Gesange: No. 4, Salve Regina
{"copyright_id":"0x446447f2a055462901cd583df144f37a8a329adce7384bb789acbb1b5a43cbef","isrc":"HUB281900089","name":"Alleluia laus et gloria, IOL 8","registered_at":"2026-06-08T21:05:42Z","spotify_id":"645q5pvWGoKyqvagBulXS6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446447f2a055462901cd583df144f37a8a329adce7384bb789acbb1b5a43cbef. 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/645q5pvWGoKyqvagBulXS6.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/645q5pvWGoKyqvagBulXS6.
{"copyright_id":"0xfe4876d217c57b58739ec2009baa8ce0cd46766d6347ffba79a12d43d1b3ddae","isrc":"HUB281900090","name":"Pueri concinite","registered_at":"2026-06-07T14:13:30Z","spotify_id":"1QVCGsVwDLLhmZ6hBgulrT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4876d217c57b58739ec2009baa8ce0cd46766d6347ffba79a12d43d1b3ddae. 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/1QVCGsVwDLLhmZ6hBgulrT.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/1QVCGsVwDLLhmZ6hBgulrT.
{"copyright_id":"0x1604c9a95a564d7fa23c4d6796eccf372ebc7bb7cb34ea7bef8f39f7b72c75aa","isrc":"HUB281900091","name":"Rorando coeli","registered_at":"2026-06-10T05:04:43Z","spotify_id":"0UKM9UIFBE5NX623VVU0aV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1604c9a95a564d7fa23c4d6796eccf372ebc7bb7cb34ea7bef8f39f7b72c75aa. 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/0UKM9UIFBE5NX623VVU0aV.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/0UKM9UIFBE5NX623VVU0aV.
{"copyright_id":"0xc5ea6f842a10ff6d5eb1f4d00c6bd817d06be08ebc85c4facbf209341ac284c0","isrc":"HUB281900092","name":"O magnum mysterium in G Major, ITV 101","registered_at":"2026-06-20T08:19:20Z","spotify_id":"4z8iU74bmvah5Z7m9178Of","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ea6f842a10ff6d5eb1f4d00c6bd817d06be08ebc85c4facbf209341ac284c0. 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/4z8iU74bmvah5Z7m9178Of.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/4z8iU74bmvah5Z7m9178Of.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02c80394515462ad262fc448e12a5152f727a2465c055fe43d7721e53f853b7. 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/5uW75yYfY7fnakdZX1Wx6P.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/5uW75yYfY7fnakdZX1Wx6P.
{"copyright_id":"0xc2c2b4a718170da175582a912a70b77bf4da40a5e7684d9ef0270cb6291cf8dc","isrc":"HUB281900094","name":"Vere languores nostros, IAL 32","registered_at":"2026-06-05T05:32:14Z","spotify_id":"2ttwEci6pSeJ0hQ9LVHZUe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c2b4a718170da175582a912a70b77bf4da40a5e7684d9ef0270cb6291cf8dc. 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/2ttwEci6pSeJ0hQ9LVHZUe.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/2ttwEci6pSeJ0hQ9LVHZUe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26965889f897eb808d7c20fa588ebf0a49baa7f323fc80828fe6dae096867b1e. 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/1DFB77V4oaCIa3L58warAM.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/1DFB77V4oaCIa3L58warAM.
Judas mercator pessimus, ITV 59: No. 1, Judas mercator pessimus osculo petiit Dominum
{"copyright_id":"0xbffa21e8bd2731687410c5fa126243975a0dba17c0adbb708edb7969b7fb3ebb","isrc":"HUB281900096","name":"Judas mercator pessimus, ITV 59: No. 1, Judas mercator pessimus osculo petiit Dominum","registered_at":"2026-06-10T18:51:10Z","spotify_id":"1omKkpUXONjcFTVWRBLANz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffa21e8bd2731687410c5fa126243975a0dba17c0adbb708edb7969b7fb3ebb. 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/1omKkpUXONjcFTVWRBLANz.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/1omKkpUXONjcFTVWRBLANz.
Una hora non potuistis, ITV 143: No. 1, Una hora non potuistis vigilare mecum
{"copyright_id":"0x06b16a5b228dfcdbe0068a28ffe9a6fc552a557be3468ab430567b738b81bf6a","isrc":"HUB281900097","name":"Una hora non potuistis, ITV 143: No. 1, Una hora non potuistis vigilare mecum","registered_at":"2026-06-17T04:32:14Z","spotify_id":"38Ht23BotBkpoTtG5FHRKF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b16a5b228dfcdbe0068a28ffe9a6fc552a557be3468ab430567b738b81bf6a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:32:55Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/38Ht23BotBkpoTtG5FHRKF.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/38Ht23BotBkpoTtG5FHRKF.
{"copyright_id":"0x6e5124a130088f1e7f07af42263fef43f17b0f9f6c9eaa48efe1dd399f0244c3","isrc":"HUB281900098","name":"Adoramus te, Christe, IGP 3","registered_at":"2026-06-23T09:52:28Z","spotify_id":"6YXTBnWKf30P4OpUlenefn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5124a130088f1e7f07af42263fef43f17b0f9f6c9eaa48efe1dd399f0244c3. 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/6YXTBnWKf30P4OpUlenefn.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/6YXTBnWKf30P4OpUlenefn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf628448b4e756cbb2f577f4cec353e0e5eabf4b06813c4839f856c352d388523. 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/62Qb0qqPKSXEHhS2OTfb1C.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/62Qb0qqPKSXEHhS2OTfb1C.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb98b7e8849248ffd5d83a87d49930d3d751fed7143191537b978079f1008634. 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/0h23DGpsR2ff5QdF4EEm7Y.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/0h23DGpsR2ff5QdF4EEm7Y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf0e8fe19f07e9a408f46c31c802bdfa830268a0d86db6c648db33d759bcf2f. 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/6rN6HrinA65ZVnE16Hcm5j.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/6rN6HrinA65ZVnE16Hcm5j.
{"copyright_id":"0x348d8313853f396dc9ca553efdefbecbb076ee8ed13736ceb347eb9e66b0e6c9","isrc":"HUB281900102","name":"Confirma hoc Deus","registered_at":"2026-06-07T01:24:07Z","spotify_id":"2vbHrjdJ09k4jHRFLu2NZf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348d8313853f396dc9ca553efdefbecbb076ee8ed13736ceb347eb9e66b0e6c9. 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/2vbHrjdJ09k4jHRFLu2NZf.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/2vbHrjdJ09k4jHRFLu2NZf.
{"copyright_id":"0xb9e88d6bcb1e20a73e6eb9a9ee05f5ad5d26a3ddbe013647550e4cf3fa394c1e","isrc":"HUB281900103","name":"O sacrum convivium","registered_at":"2026-06-07T14:18:20Z","spotify_id":"2HUfEWTYFd93uSEZnStHak","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e88d6bcb1e20a73e6eb9a9ee05f5ad5d26a3ddbe013647550e4cf3fa394c1e. 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/2HUfEWTYFd93uSEZnStHak.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/2HUfEWTYFd93uSEZnStHak.
{"copyright_id":"0x8e908aab70c8e4db9195eaba53a390388f0f3de4069e220ff38f5ad6c2471f8d","isrc":"HUB281900104","name":"Jesu! Rex admirabilis, IGP 27","registered_at":"2026-06-23T09:53:22Z","spotify_id":"3CveK1YPkfUmw30vcNHDWp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e908aab70c8e4db9195eaba53a390388f0f3de4069e220ff38f5ad6c2471f8d. 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/3CveK1YPkfUmw30vcNHDWp.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/3CveK1YPkfUmw30vcNHDWp.
Duo Seraphim clamabant, ITV 36: No. 1, Duo Seraphim clamabant
{"copyright_id":"0xd5522c89d5ff95bd3869193e7a53196d5bcdfbf16bb8a9d54097e1793eda1319","isrc":"HUB281900105","name":"Duo Seraphim clamabant, ITV 36: No. 1, Duo Seraphim clamabant","registered_at":"2026-06-22T04:28:15Z","spotify_id":"22C3GgbeK3tvctonA09074","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5522c89d5ff95bd3869193e7a53196d5bcdfbf16bb8a9d54097e1793eda1319. 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/22C3GgbeK3tvctonA09074.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/22C3GgbeK3tvctonA09074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5125e7f4125300bba6e57b0a737bd891264cf5479f9dc38e1dd4b45c261f0b1. 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/7xXk5nUZVYRAVMiGArKVGO.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/7xXk5nUZVYRAVMiGArKVGO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182b94745a10b55e50ea67653a7144f058d335121afa8dbf298a9149f943dcb3. 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/2S6NOTjusSAMU0Wi6BWO2b.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/2S6NOTjusSAMU0Wi6BWO2b.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86034d007b0627ead8064a3efd40122423020f018567b5b3d10c3c8a540ad46f. 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/6IvVEnGR21yZQuNlIhUrP4.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/6IvVEnGR21yZQuNlIhUrP4.
{"copyright_id":"0x496e505e32dc15663e979488fa468edfd46a51cead64922c5511e5d3c0f65ccd","isrc":"HUB281900110","name":"Cor meum conturbatum est, IOL 58","registered_at":"2026-06-10T05:01:51Z","spotify_id":"66f0ZBGSybvdSGKmUUUjST","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496e505e32dc15663e979488fa468edfd46a51cead64922c5511e5d3c0f65ccd. 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/66f0ZBGSybvdSGKmUUUjST.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/66f0ZBGSybvdSGKmUUUjST.
Exaudi, Deus, orationem meam in F Minor, IAG 39
{"copyright_id":"0x98bc4cd1135e6657f2741aa2399e71ce3124bc529a6b0f8a124f87351c0e2b7f","isrc":"HUB281900111","name":"Exaudi, Deus, orationem meam in F Minor, IAG 39","registered_at":"2026-06-08T04:13:04Z","spotify_id":"7Jz3YuPkvR3f3u4X49ZOUK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bc4cd1135e6657f2741aa2399e71ce3124bc529a6b0f8a124f87351c0e2b7f. 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/7Jz3YuPkvR3f3u4X49ZOUK.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/7Jz3YuPkvR3f3u4X49ZOUK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e28d368987967a7a63ffa96df49e0205e08b1857a7f3f0468f66b20aafe76e. 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/6zKBsXJhucnGrStqWFt8I4.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/6zKBsXJhucnGrStqWFt8I4.
Domine Deus, Agnus Dei in F Major, ICM 13
{"copyright_id":"0x8f800c9386541b8ecbea7354269e2824a94b3134346be7456ff015ddd39e87f5","isrc":"HUB281900113","name":"Domine Deus, Agnus Dei in F Major, ICM 13","registered_at":"2026-06-07T14:20:36Z","spotify_id":"6cY6lzYWGvosSAHup9oO7E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f800c9386541b8ecbea7354269e2824a94b3134346be7456ff015ddd39e87f5. 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/6cY6lzYWGvosSAHup9oO7E.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/6cY6lzYWGvosSAHup9oO7E.
Memento salutis auctor, T 110: No. 1, Memento salutis auctor
{"copyright_id":"0xf7d17b981c7bf7c330854c6d38d18707f86843fe53d59c4a3a63fcd9a194fe98","isrc":"HUB281900114","name":"Memento salutis auctor, T 110: No. 1, Memento salutis auctor","registered_at":"2026-06-25T23:27:50Z","spotify_id":"2WuyjX1QU6rxSn3luAk7k4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d17b981c7bf7c330854c6d38d18707f86843fe53d59c4a3a63fcd9a194fe98. 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/2WuyjX1QU6rxSn3luAk7k4.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/2WuyjX1QU6rxSn3luAk7k4.
{"copyright_id":"0x3c219119c7d95887546ed99ae217ab1661960e4e1e44048b35ae88bca85e7d5c","isrc":"HUB281900115","name":"Regnum mundi et omne ornatum, IJL 13","registered_at":"2026-06-11T12:29:57Z","spotify_id":"6ICdqJeAO1kxNfrYMLptUU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c219119c7d95887546ed99ae217ab1661960e4e1e44048b35ae88bca85e7d5c. 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/6ICdqJeAO1kxNfrYMLptUU.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/6ICdqJeAO1kxNfrYMLptUU.
{"copyright_id":"0x9560ddc0936dc450e1f0f0d721019bdad41a834f3bb8df47a6d264b411ae323b","isrc":"HUB281900116","name":"Missae: Agnus Dei","registered_at":"2026-06-07T18:06:14Z","spotify_id":"0NRSlunq9ZEFX7PQalCYKA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9560ddc0936dc450e1f0f0d721019bdad41a834f3bb8df47a6d264b411ae323b. 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/0NRSlunq9ZEFX7PQalCYKA.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/0NRSlunq9ZEFX7PQalCYKA.
Missa in A Major: IV. Sanctus - Benedictus
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28329bd5c180e4f146c97e73da5fe0e8beb52d62af1106c03195c3d52774a2ef. 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/2ePDtM8aFmTfPsHq1pcD3s.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/2ePDtM8aFmTfPsHq1pcD3s.
Missa secunda: III. Sanctus - Benedictus
Villanelle, Book 3: No. 4, Zöld már a réti pázsit
Állatok rögtönzött ellenpontja in C Major
Compositions françaises de 4 à 8 voix: No. 86, Békés holnap
Ave Maria in B-Flat Major, Op. 52 No. 6, D. 839
Dialogues des Carmélites, FP 159: Ave Maria
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae59f76faf706329cdc61e09e7c51e16708c9049f73444fae22be15d9b503940. 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/2H0quy2AMZ9PkKP41qgW8d.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/2H0quy2AMZ9PkKP41qgW8d.
Freuen sollen sich die Himmel, ISS 36: No. 4, Ave Maria
Missa in A in A Major: IV. Sanctus - Benedictus
Missa Brevis in D in D Major, Op. 63: Kyrie
Missa Brevis in D in D Major, Op. 63: Gloria
Missa Brevis in D in D Major, Op. 63: Sanctus - Benedictus
Missa Brevis in D in D Major, Op. 63: Agnus Dei
Missa sine nomine à 4: IV. Sanctus - Benedictus