thumb|right|Song of Riquier in a 13th-century chansonnier. Guiraut Riquier de Narbona ( 1230 in Narbonne – 1292 in Narbonne or Rodez) is among the last of the Occitan troubadours.Joseph Anglade, Gramm
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 0x0112cf96d3145154cf28407c419f38a5b85b6d6249b6508e8156fd216287a57b. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2788fa4-feee-422a-acbf-6f44f9f13b47.json and https://artists.proofprofile.net/proofs/artist/e2788fa4-feee-422a-acbf-6f44f9f13b47.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Reis glorios: Ouverture (arr. S. Bergeron)
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 0xecde1f5d59aa65eb75699eae5ed54c4d641b924273bfff0c9b5f79311786be79. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USKC60714336.
La tierche estampie real (arr. S. Bergeron)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf501a7d5a7e4918b8293df4f59f7ea28a4f7a2dd5aad42f5bcd6e173cd640fd9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USKC60714338.
Lonc tems ai - Lo ferm vole (arr. S. Bergeron)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cf571a61c7d5184db3345b4c85ff2b47c3d38651d8205b29dd8515751b91da. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USKC60714340.
La Septime Estampie Real (arr. S. Bergeron)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ac9c380c1ebb6267cddb3857308fcaddab7d25b864c9501fa23a7daba9d88b. 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/USKC60714345.
Falsedatz et desmezura (arr. S. Bergeron)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8563068849162de40e303dad91719ee26d9fa0316e32816045a73534d0dcc139. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USKC60714348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531ddc9b83fecb8ef9cf541905304a79f569fdd99cafdf94e21d58a29e59c2b1. 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/DEB338836804.
Como somos per conssello do demo perdudos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81afaaf9e5d048bd8393c7ae86dd9f26c155bf86f7f4aeddfafa2e8917222c72. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLY331703870.
My Vielle and the Rest (12th and 13th Century Medieval Music)
Aissi quon es sobronada (The Chosen Flower)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51347884e86a29cdfe3a5132e0a6b2236df6289b2b457d873a12f78df9cfd489. 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/QZNWX2216438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd5e4fcb7545a7caf2aadd00ca5b581eff3e856b372b7eeb6341eade6481bbe. 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/QZNWX2216441.
A chantar mes al cor que no deurie (For There Is Reason To My Pain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e27c268ea364bc19d7c0762d804b7af9ccbdd6eaf951d3960e765c0c15b93c. 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/QZNWX2216442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe103cd22aa95095750999536be92a2dc023310c5f9662b8bcab324f6f6d5d734. 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/QZNWX2216444.
Un sirventes novel vueill comenzar (I Have in You My Good Hope)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51223997c03e315ba923668b0035a94418508118fb8f207801ed4cc579f483d. 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/QZNWX2216447.
Efforcier m’estuet ma voiz (Hoist The Gall From Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dccb9d81ab0b7cb3cfed91431d5a37722894e88b48b05cc6916b620680f50b9. 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/QZNWX2216448.
Edi beo thu hevene quene (Blossom Sprung From A Single Root)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67cdb257a2e41d66ddf194193bbd60374b322f02493e54e7f1ffd53d5e618da. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWX2216449.
Hildegard Of Bingen: Ave Generosa / Oswald Von Wolkenstein: Ave Mater, O Maria / Riquier, G.: Humils, Forfaitz, Repres E Penedens
Purple Classics Presents: Unicorns & Castles – Medieval & Renaissance Music
GBL Add. MS 29987: No. 91, Lamento di Tristano - La rotta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541116469248753030e730d929a99b0926741c6d405538839c3487eec368939f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USB8U1611246.
Domna, pos vos ay chausida (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09ce0419ef5da23688ebcba7159d152dce84e67d2891a3d1e3a97670307b045. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKI199703302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdc5213c83327e6bcf19210b8b15675890bddfad2ecda52e148c1f5c836d598. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/HKI199703305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ca745b860a5ea33b69e8e459ddfda292186eec79240e1b419348e2e95d0991. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HKI199703306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864065c98c14a236d70689c37ad9c734975b7653808de2fe20a575dc2dbc10e0. 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/HKI199703307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d870f7648da3c1f071c9e0914854ed28d33e5a59e213f65d32e344cd58598b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKI199703308.
Humils, forfaitz, repres e penedens: Humils forfaitz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1b4da5a3736f1c15ed9845db8eaa0b6dcb032609e4f944c951b7aa110429f1. 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/HKI199703310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa538c57bea360abed1437b265926ec9c6f8223262449080446d41d68d73e9322. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/HKI199703311.
Early Music Recordings of Ensemble Unicorn, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600a37f1e9d3f88701f31ee52a0abae6a371f23f15351fa1a2af7ee9fdf7096a. 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/HKI199700803.
Missa Papae Marcelli, "Pope Marcellus Mass": Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecb54c1404b7cd23e4ffad2b49867dcf28aea7988d60471fc49970a0a0cdb77. 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/HKI199291301.
The Last of the Great Troubadours: The Art & Times of Guiraut Riquier, 1230-1292
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141f5ecdee471d2a79dc40fdf864c37be09dd340c729c56914447440c97fb4a2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAJU8100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5821805bbaaca2e2d3a4a7ff714a83858e0ec49935966a7772968af4e7b6f92f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAJU8100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c982cf841d8805600981bff58613f25040ba2f5f70977b268ae0b8bef0763c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBAJU8100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934cb19e3f26a07f82d3b74f4b680eb11a065b1eeacde9abec79f3bebb2d539e. 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/GBAJU8100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd509e952c93e981acef9ce4861847b02f75c56d55b5c3d5ec2142f8fdb2ffd28. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBAJU8100055.
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
The Catigas de Santa Maria of Alfonso the Wise: Maravillosos et piadosos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da3d520126a9d37fa2bdb05d3f41683cf0509ca3ef0ee7eec268999fa6bfbf7. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBAJU8100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55b1a88867a241153a667e1eaae20edfe2b6636abbf44b5287449c5a4d54ac9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEAT70801287.
Trouvères et Troubadours : Aux origines de la chanson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17216ad73d0a6f366728181098170d91c1536563181ea72bab5ef548b7e2b56. 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/FRZ092400168.
Trialogue (A Project Around South Indian, Moroccan and Medieval European Traditions)
Lalitha saharsaranamam (Vedic recitation) (India)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c954143f9946076a1059316c5ac2ef160a48ac464ddd6242890cb120911dd27. 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/ES7891201203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea0cc89fad9e8636eb645f7febe3da9f303bcf542ab1100698b080790ed9cd7. 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/ES7891201211.
Musiques et Chants du Moyen Age (Music and Songs from Middle Age)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a99d9eb94f5a94af419f2e53a1032f99b58d506a08cb8846baf20793813cc0. 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/USV291367291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c1df19080cd2da197c78adc9023a701a61f9ce2a036b53e420ebbd84c3cb33. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USV291367295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129c99e7b0a7a136ffa5385ae5db12f56978fb9a8e87a203e7806e802da0b2aa. 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/USV291367296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c32f0a0e55bb50c82152fb743f7689faa4e2f322c56220f8026d2af0f649a45. 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/ES7141500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37bde7915951fdcabdfa9e1cf871ab16bc8c5878c78ea5f58050947139c2317. 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/ES7141500203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f9d309a5114ecea05d6ecf8ccc637484cc08861a67071d1221e84f37b5616e. 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/ES7141500205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5513653739dc9c711d5ed84e6587242e380b64313f457b79ab96438aeed33f52. 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/ES7141500206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b4c5268a4a03182518a888b9a718c39394ef33e449551e4f241bb85fadeaaf. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES7141500208.
Trouvères, troubadours et grégorien (Mono Version)
Bernatz de Ventadorn: Le fou sur le pont. Chansons de troubadours
O Roma Nobilis - Musiche, canti, voci di un pellegrinaggio medioevale (Music, songs, voices of a medieval pilgrimage)
Guiraut Riquier & la cour d'Alphonse X le Sage
Medieval Song from Aristotle to Opera (Extended Version)
Music for the Medieval & Rennaissance Fiddle
William Shakespeare: La tragédie du roi Richard II, fragments (Mono Version)