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 0x4a7f459af3d5966027168e06ec4f060054fb43da0bd8b138299a20c78d21f74d. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b257d57f-95d7-4969-a05a-1778ffb68e2d.json and https://artists.proofprofile.net/proofs/artist/b257d57f-95d7-4969-a05a-1778ffb68e2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Faust, Act IV: Gloire immortelle (Choeur)
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 0x4eee8e38baf962addc8c2fd087a6ae5179f04740af380a0a6bd6aea1237ae756. 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/GBAYC8600347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da84ebdbcc36ba974b5f59635529eeeffd199039e62374bb727b77a507c502e. 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/GBPFW0900120.
Stille Nacht - Ein Festliches Weihnachtskonzert
Canzoni Napoletane (Adattamenti per pianoforte)
Collana musica sinfonica e strumentale: Ouvertures e concerto per pianoforte e orchestra No. 2 di Mendelssohn
G. Donizetti: Musiche per pianoforte à 4 mani
Rossini: Quatre mendiants - Quatre hors d'œuvre
de Sarasate: Introduction et Tarantelle, Op. 43 (Live)
Puccini: Madama Butterfly (Selected Arias for Solo Piano)
Puccini: turandot (Selected arias for solo piano)
Puccini: La Bohème (Selected Arias for Solo Piano)
Puccini: Tosca, SC 69 (Selected arias for solo piano)
Tchaikovsky: Children's Album, Op. 39: No. 15, Italian Song
Tchaikovsky: Children's Album, Op. 39: No. 14, Polka
Tchaikovsky: Children's Album, Op. 39: No. 8, Waltz
Schumann: Album für die Jugend, Op. 68: No. 8, Wilder Reiter
Schumann: Album für die Jugend, Op. 68: No. 4, Ein Choral
Schumann: Album für die Jugend, Op. 68: No. 1, Melodie
Mozart: Sonata for Piano and Violin in E-Flat Major, K. 380
Mozart: Sonata for Piano and Violin in F Major, K. 376
Mozart: Sonata for Piano and Violin in C Major, K. 303
Mozart: Sonata for Piano and Violin in C Major, K. 296
Mozart: Sonata for Piano and Violin in A Major, K. 305
Sonata for Piano and Violin in A Major, K. 305: II. Tema con variazioni. Andante grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132ea938a97c72e55bfb02aacc4940acf4f8c4dd7abe71250899391dc5ed8be2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITD542301928.
Mozart: Sonata for Piano and Violin in E Minor, K. 304
Mozart: Sonata for Piano and Violin in E-Flat Major, K. 302
Mozart: Sonata for Piano and Violin in G Major, K. 301
Sonata for Piano and Violin in G Major, K. 301: I. Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cbc0ceb15e9d40c4456ff0e29853e41d17ec88ece751ab1ebb7ffbd70736a6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITD542301919.
Sonata for Piano and Violin in G Major, K 301: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e7d0bebcafe5d6e3257ede370483a1886fb348f08fe6d10cac85685e19e083. 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/ITD542301920.
Adeste fideles (O Come, All Ye Faithful)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d8a8501d47a2d0830d413058dd562316656643cb49c8851f575eac54ec3336. 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/DEF059105110.
Gloria in Excelsis Deo: Gloria in excelsis Deo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979a196512f53f0abed98e1cdb954683c01c18621e20e3f7e5e202a7cd8db977. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBBBB2010301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf58957986c70d7533740665c85f5b22c8595b499ddc106e1c2da381cf5d21f. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/GBBBB2010302.
Gloria in Excelsis Deo: Laudamus te...gratius agimus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ab7f1cc68839b4e7b3d157dfd1d35b1627ab4d73f2f70be7ba9b9cb449fd65. 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/GBBBB2010303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa80a93b20222a69a038a755928febd17f758d2a4f5fa8f7e31c869363012d24. 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/GBBBB2010304.
Gloria in Excelsis Deo: Qui tollis peccata mundi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff38c90b3ec6055f2db5d2f1204de2901b706f0788f25d7fef81530c67e0e04f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBBBB2010305.
Gloria in Excelsis Deo: Quoniam...cum Sancto Spiritu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d119e92d2ff4eb3d70876d4f6f5dfa7860b65e382bd011dba3984e69572cd9. 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/GBBBB2010306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e50637213b0685d0d2c5e747c8489538d14d67537d467bb1fbf2331a5fbaca. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEN962232705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf602dcf492c1537852e9a311eb8c5da87fa427e84dce33821d6b53b6877ac005. 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/GBBBB9810212.
Dixit Dominus, HWV 232: Virgam virtutis tuae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db9e948f6f5d9d8bdf344eb1253c6015de662f30248e0e9f238a6b6eaf2efa2. 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/GBBBB9810213.
Dixit Dominus, HWV 232: Tecum principium in die virtutis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542f0ffff06fa5775831ace49e6d25287a528e281a6396ebd797815825477b3b. 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/GBBBB9810214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba85503c5cdcf05f31dae05ef9bb2fd022fe50979841f60e2e3c85232f3b704. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBBBB9810215.
Dixit Dominus, HWV 232: Tu es sacerdos in aeternum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc443512d5cfdcb72b406f6d46edcc2ed28cf420518c0b48c9a8ccc545a39de9. 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/GBBBB9810216.
Dixit Dominus, HWV 232: Dominus a dextris tuis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357b1e4b2a666752a6fe416a0e15efd2e8ff2d5e3b71dacad3ac052068e4aeb3. 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/GBBBB9810217.
Dixit Dominus, HWV 232: Judicabit in nationibus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa881ea66899b2261c682ba8dfbe3703374ad8ee5b9ee6027230301e726c79e4. 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/GBBBB9810218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59a33147590b060951117c86ced52d0aee7aaaacf3c707ca19198fd8a1e7067. 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/GBBBB9810219.
Dixit Dominus, HWV 232: Die Torrente in via bibet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d6b6130bb2923e4f44dd53a35540bcec3842c76288bfae9fdd899940f7ce69. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBBBB9810220.
Dixit Dominus, HWV 232: Gloria Patri, et Filio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015bae79c7d43434fed1c3f55e356333f09e7c8a3b6d270eda411ee9f9df4023. 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/GBBBB9810221.
Dreaming of You (Arr. of Intermezzo from Cavalleria rusticana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0d5b7aaea1dd39d0d23066dc0d2ef2ce990364d09bb0ad26bd885899e21ed8. 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/FRZ209506100.