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 0x809d0286708265b41027421e210deef0869ee75cb3a84308364f783de156d15f. 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/eac8f4d3-7f6e-4634-a5d0-8ed2e8f50a35.json and https://artists.proofprofile.net/proofs/artist/eac8f4d3-7f6e-4634-a5d0-8ed2e8f50a35.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Braveheart (Original Motion Picture Soundtrack)
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 0xb443a334c9430a96e964a79b846d7c97c882b90e4ddc172d66291228f5ce1b66. 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/4P1sbofnneFeEEASTFMEGl.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/4P1sbofnneFeEEASTFMEGl.
The Feast of St Edward at Westminster Abbey
Morning Service in C, Op. 115, Pt. 1: I. Te Deum
Morning Service in C, Op. 115, Pt. 1: II. Benedictus
Evening Service in G Minor, Z. 231: I. Magnificat
Evening Service in G Minor, Z. 231: II. Nunc dimittis
Fanfare Trumpeters Of The Royal Air Force
The Choir of His Majesty's Chapel Royal, St James's Palace
Choristers from Chapel Choir of Methodist College Belfast
The King’s Scholars of Westminster School
The Official Album of The Coronation: The Complete Recording
{"copyright_id":"0x462ef589a2e1df022f198128dfbafcafd0384e6f9be6ac91f1e0cbc2653610c1","isrc":"GBUM72303854","name":"I Was Glad (Arr. Rutter)","registered_at":"2026-06-20T03:34:32Z","spotify_id":"0D14VfZtFsqx3zfZ8ZE16q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462ef589a2e1df022f198128dfbafcafd0384e6f9be6ac91f1e0cbc2653610c1. 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/0D14VfZtFsqx3zfZ8ZE16q.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/0D14VfZtFsqx3zfZ8ZE16q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2398b6a6b86c1d5bc1267d37665d95d207586780a3dbedb19251006cd040cf. 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/4DS7LQSFLtQdZNRguDwKuu.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/4DS7LQSFLtQdZNRguDwKuu.
Dixit Dominus, HWV 232: I. Dixit Dominus
{"copyright_id":"0x114881e07893ab13bb7ce7ada780f7c6e14f50c4d2a18a2c2d2fcabf05a2d7cf","isrc":"DEF058703341","name":"Dixit Dominus, HWV 232: I. Dixit Dominus","registered_at":"2026-06-10T18:45:24Z","spotify_id":"3AncG85V7TyfgYiyrIkSHO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114881e07893ab13bb7ce7ada780f7c6e14f50c4d2a18a2c2d2fcabf05a2d7cf. 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/3AncG85V7TyfgYiyrIkSHO.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/3AncG85V7TyfgYiyrIkSHO.
{"copyright_id":"0x490ff0e1a44401fe22ac70cc59538af104dfc7c5fbc30341a94b386ee32985b9","isrc":"GBUM72303860","name":"Coronation Kyrie eleison","registered_at":"2026-06-20T22:25:51Z","spotify_id":"5FXolQxI8O5QJhTzw15aa6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490ff0e1a44401fe22ac70cc59538af104dfc7c5fbc30341a94b386ee32985b9. 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/5FXolQxI8O5QJhTzw15aa6.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/5FXolQxI8O5QJhTzw15aa6.
Dixit Dominus, HWV 232: VIa. Dominus a dextris tuis
{"copyright_id":"0x7320e97253b3f324def1d677bbce3f8e55deb1c76cfb33811dcbcf0061630765","isrc":"DEF058703346","name":"Dixit Dominus, HWV 232: VIa. Dominus a dextris tuis","registered_at":"2026-06-19T13:30:51Z","spotify_id":"1gf1qHYJWbIs9z7rntAZxU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7320e97253b3f324def1d677bbce3f8e55deb1c76cfb33811dcbcf0061630765. 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/1gf1qHYJWbIs9z7rntAZxU.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/1gf1qHYJWbIs9z7rntAZxU.
{"copyright_id":"0x56942533591ecf1c420e0d717cf3e030b679a0af093feb268ba05da16a2e41da","isrc":"GBUM72303944","name":"Make a Joyful Noise","registered_at":"2026-06-24T11:24:42Z","spotify_id":"29aeMmDYXgOVkbRSJAUAJa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56942533591ecf1c420e0d717cf3e030b679a0af093feb268ba05da16a2e41da. 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/29aeMmDYXgOVkbRSJAUAJa.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/29aeMmDYXgOVkbRSJAUAJa.
Dixit Dominus, HWV 232: IV. Juravit Dominus
{"copyright_id":"0x43cbc1a5f38c2569937d014c88eb1f03017b7f71986cba02d14886df9cac358b","isrc":"DEF058703344","name":"Dixit Dominus, HWV 232: IV. Juravit Dominus","registered_at":"2026-06-19T13:29:00Z","spotify_id":"5A6fkZG9L6zuPYS10POqRS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cbc1a5f38c2569937d014c88eb1f03017b7f71986cba02d14886df9cac358b. 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/5A6fkZG9L6zuPYS10POqRS.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/5A6fkZG9L6zuPYS10POqRS.
Dixit Dominus, HWV 232: V. Tu es sacerdos in aeternum
{"copyright_id":"0xfa9e84f29ead7be985bd9c20dc440d6fffca290be2d80981ccf77431a1d15543","isrc":"DEF058703345","name":"Dixit Dominus, HWV 232: V. Tu es sacerdos in aeternum","registered_at":"2026-06-20T07:59:50Z","spotify_id":"1CvpvFI0GjA2nZMa2EpwtB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9e84f29ead7be985bd9c20dc440d6fffca290be2d80981ccf77431a1d15543. 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/1CvpvFI0GjA2nZMa2EpwtB.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/1CvpvFI0GjA2nZMa2EpwtB.
Dixit Dominus, HWV 232: VIb. Judicabit in nationibus – VIc. Conquassabit
{"copyright_id":"0xc96ebe827fbcd8df572bbf113c3ba4251639b2a0c3e752e4417ecf33e4ad600d","isrc":"DEF058703347","name":"Dixit Dominus, HWV 232: VIb. Judicabit in nationibus – VIc. Conquassabit","registered_at":"2026-06-20T08:03:21Z","spotify_id":"59mHQh32a0lxlawNeJqCo3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96ebe827fbcd8df572bbf113c3ba4251639b2a0c3e752e4417ecf33e4ad600d. 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/59mHQh32a0lxlawNeJqCo3.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/59mHQh32a0lxlawNeJqCo3.
Dixit Dominus, HWV 232: VIII. Gloria Patri, et Filio
{"copyright_id":"0x3d9be4ac9b66f99e7a5051e5333ed697b627977f6f49b7108006ce934186ae9b","isrc":"DEF058703349","name":"Dixit Dominus, HWV 232: VIII. Gloria Patri, et Filio","registered_at":"2026-06-19T13:30:49Z","spotify_id":"6y00Fa3Xi6NGMqvzrDDKZd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9be4ac9b66f99e7a5051e5333ed697b627977f6f49b7108006ce934186ae9b. 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/6y00Fa3Xi6NGMqvzrDDKZd.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/6y00Fa3Xi6NGMqvzrDDKZd.
{"copyright_id":"0xa009deabe2fd19ca0d30db3a1b18a4a68a4cbd22002ab71f120fdb3fc9da7e2b","isrc":"GBUM72303900","name":"Veni Creator Spiritus","registered_at":"2026-06-25T17:11:13Z","spotify_id":"4wx3jdGSKAv09mVuRpMEAa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa009deabe2fd19ca0d30db3a1b18a4a68a4cbd22002ab71f120fdb3fc9da7e2b. 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/4wx3jdGSKAv09mVuRpMEAa.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/4wx3jdGSKAv09mVuRpMEAa.
{"copyright_id":"0xef06b2e47651cf7e88cd6023f127c6a95d0743dc55eec7d4da17f3dd0cf8048c","isrc":"DEF058500681","name":"Missa Papae Marcelli: Kyrie","registered_at":"2026-06-20T08:02:29Z","spotify_id":"5UwstDeIzY49ygcqky1cqX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef06b2e47651cf7e88cd6023f127c6a95d0743dc55eec7d4da17f3dd0cf8048c. 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/5UwstDeIzY49ygcqky1cqX.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/5UwstDeIzY49ygcqky1cqX.
{"copyright_id":"0x7a67dc5d4424dcfa6d8c17589967f788d553bc66a59f8845fd2627e25ae98f04","isrc":"DEF058500686","name":"Missa Papae Marcelli: Agnus Dei I - II","registered_at":"2026-06-27T06:41:20Z","spotify_id":"6HWswkW6cClipqjb0nlhTy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a67dc5d4424dcfa6d8c17589967f788d553bc66a59f8845fd2627e25ae98f04. 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/6HWswkW6cClipqjb0nlhTy.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/6HWswkW6cClipqjb0nlhTy.
Zadok the Priest (Coronation Anthem No. 1, HWV 258)
Dies Irae - The Essential Choral Collection