1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x6c37d13e5be8a6ff60163c9a630a8ffa67d0c3d20f74eb4b68f4e854cb1f7c2a. 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/6a12c332-5316-45e5-865a-462d5df61627.json and https://artists.proofprofile.net/proofs/artist/6a12c332-5316-45e5-865a-462d5df61627.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e4466c8704644f29611fcaff388ba5cd206f5e823ffdaa74b625dbcda24342. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB112304304.
Henze: Lieder von einer Insel, Orpheus Behind the Wire & 5 Madrigäle
The Protecting Veil: II. The Birth of the Mother of God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc76dbc116cb29183cb9a0cb2f93d0e5a47501ebc698f2efd54378059b64e1a2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191925002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9938b83671847a0bac97b2ac1d611da6039a2b3e6dc815abd15f78b9f5787465. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191925009.
Ligeti: Complete Works for a cappella Choir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd881d3397860290b8496852edf9ea3eb9a53a19464155730c8d3d71301693825. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192138711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe492bddc1bc4d06234a321139d93d472658c1f052401ef6886b263e1f0225cd3. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192138701.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb285fd3a69d3846bbcb2a75f0f48fa2126446a05f459a8f87a3956732bf6fa12. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192138702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70e51e502c89d373824bd9e4987487107cd051597deae02e1778e632f7018fb. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192138709.
7 Magnificat Antiphons: No. 6, O König aller Völker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15ae8608fe4a32054ada0b7e1bc78a4d69a4586f210ed835ebcfe4b093b56f3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191522920.
7 Magnificat Antiphons: No. 7, O Immanuel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8362211e5a2e97d7d54b3d937fbef4f4365dbf62d891e17847420c5bbaf1877c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191522921.
7 Magnificat Antiphons: No. 1, O Weisheit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942fa47a911919e59fed5d8a1c3e8cf68a5dd9fa804fee5ada9a12f55c6c9550. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191522915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd295239af1edf719e8682a8407aa2bb457c85ac9216e92ed061e99289c140cdd. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191522916.
7 Magnificat Antiphons: No. 3, O Sproß aus Isais Wurzel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12421db7ba6f14f22b490a48c2d68bafc44daa8c93b2284fa85d557e731430f8. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191522917.
Wolfgang Rihm: Sieben Passions-Texte für sechs Stimmen
Des Kaisers neue Kleider. SWR Young CLASSIX
Die kleine Meerjungfrau. SWR Young CLASSIX
Rachmaninoff: All-Night Vigil, Op. 37 "Vespers"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e44650cac99a5546593637540e497439c36a7c042ac5fca44ae1d57b6ac920. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550407657.
All-Night Vigil, Op. 37 "Vespers": No. 1, Come, Let Us Worship
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79534790e700d5bdd7fc909ab92cd1deb5fef4d29980b5a3c98d1e51d78b404b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550407658.
All-Night Vigil, Op. 37 "Vespers": No. 3, Blessed Is the Man
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a02be101dfda736870e8c3f310ab4e2a74fade9e9569873e895b0498c52c22. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550407660.
All-Night Vigil, Op. 37 "Vespers": No. 4, O Gladsome Light
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d83cea174f0bc47c1f3dd877020c57d32d9be41a88ec710170314700c85b46e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550407661.
All-Night Vigil, Op. 37 "Vespers": No. 2, Bless the Lord, O My Soul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3055e6446db92ccc1db9307fc881dc712845de67d36b2b5a1cb51036cd378036. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550407659.
All-Night Vigil, Op. 37 "Vespers": No. 6, Rejoice, O Virgin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa91f7071b26b44abf3ade58682c4754778ba3cf672e4bff365b39a5d4e7de25. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550407663.
Geistliche Gesänge, Op. 110: IIb. Ich liege und schlafe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03d1e4670ddc5a45b4db85249714a473a7e09369cad9fa7b9a512326b1b28f9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111600906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9235e3fee65b937e232df3fe638aed0322e8d5e5437d5d63ab46c3a9888220c4. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111600910.
Des Kaisers Nachtigall. SWR Young CLASSIX
Hindemith: Messe - Apparebit repentina dies
Clytus Gottwald - Alma und Gustav Mahler
Lieder und Gesänge aus der Jugendzeit: II. Erinnerung (Transcr. Gottwald for Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35f44109afc71908540292abaf5ad330c17487b65e6656e6cf391ed9470820b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111207601.
Lieder eines fahrenden Gesellen: IV. Die zwei blauen Augen (Transcr. Gottwald for Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547ae05beff81bc94cac9176355fdbee0c10be0d527d87eb7183080e4fb7b58c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111207604.
Songs from "Des Knaben Wunderhorn": XI. Urlicht (Transcr. Gottwald for Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0724a4ff613d7bbd6c2f56fdc0055c59b49563289abf225fe67993c286574ff2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111207605.
Rückert Lieder: III. Um Mitternacht (Transcr. Gottwald for Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a36b153f4f6882cb816f03173d84c6930ab38ecdd60974b2df4f4961abbf58. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111207603.
Rückert Lieder: V. Ich bin der Welt abhanden gekommen (Transcr. Gottwald for Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3e1c937c060d91d592d6ddb6e842c408d03914215aaf8d739e1d392f8afdce. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111207606.
5 Songs: I. Die stille Stadt (Transcr. Gottwald for Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bd676f3b274d8acff8ce8eedd3988492f85e0ec194b4bfb07a8be6b3d681c8. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111207608.
5 Songs: IV. Bei dir ist es traut (Transcr. Gottwald for Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99936087136d273f26233f68d089db46e706ef931174ac966f65fd5cad29c5d2. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111207610.
Im Abendrot (Transcr. Gottwald for Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf14b182c6371f0a091a373313745c56fd586b8cbaf5e164e31f82e823174879. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111207612.
Carmina Burana, Fortuna Imperatrix Mundi (Version for Soloists, Choruses, 2 Pianos & Perc.): O Fortuna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb888ec80584717768574768380912b1a7e2c55dccae556a3c61040707a03eded. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA551028412.
Carmina Burana, Fortuna Imperatrix Mundi (Version for Soloists, Choruses, 2 Pianos & Perc.): Fortune plango vulnera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc776ae18fa68e68be72e5750cee07a04bbb2d5f1ad7f39a189d37b8caa888c3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA551028413.
Carmina Burana, I. Primo vere (Version for Soloists, Choruses, 2 Pianos & Perc.): Veris leta facies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3278564ff253623a2053dbaed2eb16eeccf364b64823e07d6dd3d4634a11d04b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA551028414.
Carmina Burana, I. Primo vere (Version for Soloists, Choruses, 2 Pianos & Perc.): Ecce gratum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6a308d727db59a584103ec4bb9da924f38609eaac26196ff29d186bb4305c8. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA551028416.
Carmina Burana (Version for Soloists, Choruses, 2 Pianos & Perc.): Fortuna Imperatrix Mundi. O Fortuna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbb132a7db810783d76a6c0991979217900c565931a0080a766e4c656ffb72c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA551028436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3ce8784131d61f9faa6d5f00ce10d3af1c5f3b34d540e80055ceed5ddd67b8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550922446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ee8ba70530cb9171e393ab550eb228ec4f714be66bd22f68308b0f8b834d5f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550922454.
Choros No. 3, "Picapau" (version for a capella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23a37900470910f469bfa21f48b87dd4f76768f29491acdf8d3fba63e8c5c2f. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550922450.
Duas lendas ameríndias em nheengatu, W506: I. O Lurupari e o Menino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f537c0e0097d06754003d4dc27802c708ecc148d78b263d2152892ee129f0a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550922452.
Duas lendas ameríndias em nheengatu, W506: II. O lurupari e o Cacador
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9472eaa3be94cad8e0d3e14d9ae9d391cfd62dd3b5a20528c11f080a1e9235a5. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550922453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977fa1ef409a01d1f34e38d91088c0c1e456cfb9c2117fb1b48b2092cbc8ad5c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA550922458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a166d13fd82ec1516be2e422ede4af6132b62bcc9c733aecded556599c7827. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191718812.
4 Petites prières de Saint Francois d'Assise, FP 142: No. 2, Tout puissant, très saint. Majestueux et éclatant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3290f9dbb1fd4f821fb9d36dab27ee4ede76379ea6ab1e4f852ac2dcd5febea. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191718816.
4 Petites prières de Saint Francois d'Assise, FP 142: No. 4, Ô mes très chères frères. Bien calme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdac6f22ae789bc12d8097c323e0c811843b908648fcd85c0f5235156d74b500. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191718818.
4 Petites prières de Saint Francois d'Assise, FP 142: No. 1, Salut, Dame Sainte. Modéré, mais sans lenteur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd30d2e9813278599cd0dc78ce0f036f9c858c2a88603120ae5eb25bb3856f3f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191718815.
4 Petites prières de Saint Francois d'Assise, FP 142: No. 3, Seigneur, je vous en prie. Très expressif et fervent
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffaa4196e4089bc462a733f7d1cbc497cc79257708b1ceb1c4f8ae1b429c4640. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191718817.
Feldman: Rothko Chapel / for Stephan Wolpe / Christian Wolff in Cambridge