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 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 0x09a7ccc1560977337607ec9cb4f105bd90428b43aa9fce2017d0f4be19b97dd5. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4814c21-9cab-4023-aeae-496c0208a1fb.json and https://artists.proofprofile.net/proofs/artist/a4814c21-9cab-4023-aeae-496c0208a1fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
'Beethoven & Beyond' - Classical Essentials
11 Minuets KV. 176: Minuet IV in B-Flat Major
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 0x672d830ec2d68ac4a6ad052b1b44d7cfc7d614879f6b05968a1ef36193f38f79. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/DEPI82502259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce4705aeb6d63bfe6b8ffab4b336612f83926a4c2f79eab00605b990b5e7edc. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/DEPI82509596.
'Ares' - Classical & Contemporary Essentials
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217cd85222ceb12cf495dd439ba8f01761d9b1796d107cf14b9e3b83cc62fcb3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEPI82509500.
'Atalia' - Contemporary & Classical Masterworks, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ff6327a9a16beba63b686e0e76a1c8ba4405ac7efb8f7ee297d73a4b852666. 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/DEPI82511962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c5e3259717939571743a832fe394f335880b736b7170b881effc78606a1de6. 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/DEPI82511991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d59e8e5212a4052a87e78d97c3f1e253ba0ad75333c2fb021e9cc6fe7219b61. 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/DEPI82511992.
The Seasons. Op. 37A: No. 11, Troika (November) - Duo-Art S-31438
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a687e56f0309cdf7cf2ebc49ae49f3dcac81eda6c5b6522d95c0992b2c8732. 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/DEPI82511984.
Ramillete De Flores, Op. 147: II. Cinque Terre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78e25c3ab34594f831c48c4c9923b67ad024bb952b5032aa9f1ea666ccf3e8c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEPI82322174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc127d4c9f308f1d4a9da12d5015258d740bacc0bc7635a51263f6c2d0d082e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEPI82500479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9198303a5f4b2fcca9b7e9f520d5ed83d44fa605e47682337cfb855f0e3e6e5. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/DEPI82458841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74d3da60fcdc4b7b3f1f2e969e0756d5a6d14d397b5eecdd27dc883f8d61af9. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DEPI82450024.
Anna Magdalena Bach's Book: Musette in D Major BWV Anh. II 126
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196201a905e401398b2a38a2ea1a3b7fd875f5d85bf2f7d2b7ebd1efb414c16c. 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/DEPI82458818.
Ave Verum Corpus KV 618 (Arr. Solo Piano by R. Bender)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18404ba1f0a27d060aa1cf32425ddfd0fd68ab9952e83465204d886fcdc9b59. 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/DEPI82502251.
Clarinet Concerto in A Major KV 622 (Piano Transcription by Hans-Günter Heumann): II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cc4099c44de097aa38eaea7722a4ad6de8e08ebabb6eba20cc9a444044be1f. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEPI82502252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca95ed104b62edc72e3e077b488da66368d43d8011745255a30b702e980369e4. 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/DEPI82458819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf4ecc0d3851504f737e39c8e2fa1d1a5c12bcda4cd24691d7e915eba8a4f71. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/DEPI82458823.
Lacrimosa from Requiem KV 626 (Piano Transcription by Hans-Günter Heumann)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d937693f71eec6792db390df9068b7a9c32b1f22be67e2b9d590c094eb1598. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/DEPI82502253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5b9595881dfb62d2f35579bc958b8aeaa25c2483068257ae108626d948129a. 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/DEPI82448247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427e869fbb3b3164990f8bddb605aabba6ee3628c99ef8bc988cebeb7031a131. 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/DEPI82503004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2132bc39d7a5ae30592261047aa5442dc52d3a4d250d1c31b2f751a6f24b55e4. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEPI82509615.
Six Studies in English Folk Song (Arr. Flute & Piano by Katrina Penman): II. Andante Sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57600f5e72fc2cdb4461c75513fd83411e5b0b95a698565d2acf0e042824412f. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DEPI82450011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5d8593c069b07a127084058359513d561e634033971ec4e3f4d2145300a49e. 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/DEPI82449849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64897437291fe26001d3794587f149c04ccf13f294c0bc98c3c52cd69ecef897. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/DEPI82412417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffa77eb1c480982afd53a0a238f6fb117b300375559b6eebe0090d30845c66a. 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/DEPI82450894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f305aab7f19850091d94efaf8bcf2ff311cdfc193de18a176cc559ad374ea9f. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/CH6542284239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55867f24be37b9fcb6906aec428c74ebc769d3a357fdb909e93e54e78abc3dc1. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/CH6542284234.
2 Piano Pieces, Op. 38: Prelude-Impromptu, Op. 38, No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc448c44924905fdfde621e3df8d729281edb8082e40fcb9769baccc34a1fcf. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CH6542271697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06281daa3eef943218184399fd67ffa31b7202acbdeb95e5bbdd3a9286217ce3. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DEPI82437914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b09975ce558586c8217228a6e2f56f1b93651b97509b12d9aa30cfb9870618. 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/CH6542284246.
Lyrische Stucke. Op. 43: No. 4, Little Bird - Duo-Art 66048
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bcc5a2037e5311f7415467f06c000610858379e0342898dbdc4209de1ebf50. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEPI82441746.
Hedge Rose (Heidenroslein) D. 257 [Arr. By Godowsky] - Duo-Art 73039
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8eac7393db5fc3f211b6c42ca73a33ec48ac4a2033d9d5a999f62f32ce422f. 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/DEPI82325033.
10 Pieces for Piano No. 1, Op. 12: March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc2126132b72ec636d31903bac7e5c825dcaf80b3f7c18cd9ba1c4e6e96d9d2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/CH6542300439.
Lyrische Stucke, Op. 43: No. 4, Voeglein Birdling (Little Bird) - Welte-Mignon 1277
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b21ad19a0f9045300ceb071353c1f4d67e6a339e6b0e880f1fe0c09d0fb189. 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/DEPI82321819.
Carmen (Arr. Solo Piano by Armbruster): Act 3 Selections (Part I) - Duo-Art 72659
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf6f78aa57b1ee9c78fd04ec03961e336a73b9a873d880e107a63ab4ad54e59. 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/DEPI82310386.
Water Music Suite: Hornpipe (Arr. Solo Piano by Grainger) - Duo-Art 6754
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27d464b8a6023188709b6ffa9611ce7a9248f36a3944051673ffdc5bf974835. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEPI82325042.
Album Leaf, Op. 28: No. 3, Dance Caprice - Duo-Art_66048_2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e61f18b78d81cf3258f4f8a85de02a3aa67e5cfb773f1042f4b3ab7d5b5864. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/DEPI82404058.
Lyrische Stucke, Op. 43: No. 6 to Spring (An Den Fruling) - Welte-Mignon 1307
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf78b0731039cbf4f821f2ddd2c24d32784b178995a0fbfdfee750d55fd81ea7. 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/DEPI82322268.
Romance Sans Paroles, Op. 17 No. 3 - Duo-Art 5659
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2867bdfd7fbcbfe11437d8ac6e94f97c8322ae39ae9fe2c987628a662b17729. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEPI82439066.
Carmen (Arr. Solo Piano by Armbruster): Act 3 Selections (Part II) - Duo-Art 72659
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0310985ff1960fd390456519499bff2a300ca637f91d4810d72ff65e50ee47. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEPI82310387.
Stemninger, Op. 73: No. 2, Scherzo Impromptu - Duo-Art 6150
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9fb0691ff88c35b8d403427de83dc9ce9c662d756f4798a89e2f35bfaed129. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEPI82447455.
Album Leaf. Op. 28: No. 3, Dance Caprice - Due-Art 04 Br
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d9a16a140fc3099c7a11e1fb2bcaf1933d24f974d847fa7acf2a70dc14c729. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEPI82307363.
Ständchen, D.889: Hark! Hark! the Lark! (Transcription by Liszt) - Duo-Art 6052
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ee9b9fc46c2c5d04fb49321311e163038a8a62b240d8cdcb1a3e4a3ca8997d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEPI82441456.
Scherzo No.1 in B-Flat Major (Posthumous) D.593 - Welte-Mignon 915
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e603ced784eb45be538e9367b1a5266e0ff2838d0069ce1e2292c3b4dd444c. 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/DEPI82307175.
Scherzo No. 1 in B-Flat Major (Posthumous) D.593 - Welte-Mignon 915
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc88db45d0b3329e668b208c8e0ce12407b4e09c791b1fa7bf83b6c839928ad. 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/DEPI82305946.
The Seasons, Op. 37a: No. 12, Noel (December) - Duo-Art 70829
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0d9094d21bb15b5d2811b7e71d23d1f0cdf7ea97515d326a9113711114f2c2. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEPI82447451.
Liebesfreud. (Love's Joy) No. 1 from Alt Wiener Tanzweisen - Duo-Art 5864
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4cc780f0018b89d36b21b41405db0dc39c841d44051e073a8f3d5d08ed945a. 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/DEPI82400356.
Litany for the Feast of All Souls, D. 343 (Arr. Solo Piano by Cortot) - Duo-Art 6126
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad40e9c60a8afffc6e66dbda09b3e044cedb971faec52fffb565f6be73a95bb. 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/DEPI82321599.
Valse Sentimentale. Op. 51, No. 6 - Welte-Mignon 1679
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13ed5e7ba2d57f5fc657133dfdb9e4faeec079aec01c242f82ff5cd3a34d8a2. 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/DEPI82437471.
La Damnation De Faust: Ballet Des Sylphes (Arr. Solo Piano by Liszt) - Welte-Mignon 965
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145086c7117b7e6cef4c433f1b0974ca95d619a0b99d35d69063fe7e912acdb7. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEPI82320680.
The Seasons, Op. 37a: No. 6, Barcarolle (June) - Duo-Art 7128
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e3b3d7cf60e3a783c932f712abcae54a55011efee22c1c77f737f9516e1d9c. 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/DEPI82308084.
"094 Classical & Contemporary Essentials" - Aura
3 Miniatures for Clarinet and Piano (I. Allegro II. Andante Cantabile III. Allegro Ma Non Troppo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e42ae135a87613f87ea0dad2e5cc5fac5286ab003924ed533441155a796fed5. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/DEPI82450025.
Two Part Inventions: No. 8, BWV 779 - Duo-Art 6392
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5128188c634c5d06940dbf276dfcacc400e51cc05f8dae025d6be2977c64418f. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/DEPI82326087.
Etude, Op. 25, No.9 (Butterfly) G-Flat Major - Duo-Art 5649
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084d666d9b96cf5f0f821b883e75d43cc443a0f3a6bc0477c4eb650641b1f007. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/DEPI82437911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7313eee2ed30de813ba0484081d73fd6dd69d570c8811a71f484e1ed11a325ad. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/DEPI82439061.
Preludes, Op. 28: No. 3 in G Major - Welte-Mignon 3184
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567e84d2a6c4852e82c443d91aced819d72f904401689e345ca6f79d8b9ba3c9. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/DEPI82307341.
Prelude, Op. 28, No. 16 in B-Flat Minor - Duo-Art 035 Br
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965b215ed1f46b46e976fb092bc559d1d8ab099171e2bdb305c77abf8ca8bb17. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/DEPI82439060.
Well Tempered Clavier, Book I: Prelude No. 5 in D Major, BWV 850 - Welte-Mignon 1836
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb988bab772941cf137f5b1a17b9627ce1fb3652dc2991e59ff9e7272e67703. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEPI82400125.
Etudes, Op. 25: No. 9 (Butterfly) in G-Flat Major - Welte-Mignon 1253
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6ad95d28a86a3894a5f4755022f2c734ff4d1fad7ee4bbf9c074e4f5995bd6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEPI82409017.
Well-Tempered Clavier, Book I: Prelude No. 5 in D Major BWV 850 - Duo-Art 5650
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf504d2604adf5ff315d95ee55f09820b369de1b38bf3aaa095ca6f57e9e70e56. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/DEPI82437480.
Well-Tempered Clavier, Book II: Fugue No. 12 in F Minor, BWV 881 - Welte-Mignon 544
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a6fc204a73e423ed3444052c4d7f9c8982ccb6cd8d6be87e2535b9ba245976. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEPI82307703.
Well-Tempered Clavier, Book 2: Fugue No. 12 in F Minor, BWV 881 - Upon Aeolian Roll
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce6108a48b7b1f26740a4a669b2cc6af19926c78c1054248c891e0143bf0877. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEPI82422611.
3 Nouvelles Études, B. 130: No. 3, Allegretto in D♭ Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f5ac4e6190b1599dd9f32f4cfc48a915ba9f779f73d73e9da1212829cc94b6. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/DEPI82422618.
Well-Tempered Clavier, Book I: Prelude in C Sharp Major, No. 3 BWV 848
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf510f0c8f0aa796c6666453e3fe35eb0778e55c9adb096db40f49f6ba291ad91. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DEPI82433504.
Well Tempered Clavier, Book I: Prelude No. 12 in F Minor, BWV 857 - Welte-Mignon 2965
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefca77fb0d2bc7289805c5edb9eefacfcfb3d01965ef2d0c6e4e05888fb31f75. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEPI82400397.
Etudes, Op. 25: No. 2 (The Bees), in F Minor - Duo-Art 6349
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a883562b7d63d711120ceb4d06c6a262aaea4461e0b5d36112340ba235e320. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEPI82422540.
3 Nouvelles Études, B. 130: No. 1, Andantino in F Minor - Duo-Art 7451
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fa296ac8a1ac5762514de39edb04028aa45564ecc48adccadf093ee9ba55da. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEPI82422617.
Etudes, Op. 10: No. 7 in C Major, 'Toccata' - Duo-Art 5561
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e74072357480a1cd3ed407fc435260b391b4ba34f92840b547e1f5768135ca9. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/DEPI82319539.
Etudes, Op. 10: No. 5 in G♭ Major, 'Black Keys' - Duo-Art 8022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b67e5c6e8f0a34a91a637c0f63d2bfb45a693b84aa1eaa2dae150830d618cc. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/DEPI82319537.
Piano Sonata No. 14, Op. 27 No. 2 Quasi Una Fantasia: II. Allegretto - Duo-Art 6102
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a1f24ffe12bdedc0f3f1f84bfad8fe667153f6f8e606df612929b3e2256110. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEPI82439070.
Violin Sonata No. 2 (Arr. Solo Piano by Saint-Saëns): Bourree, in B Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a082c296e71a08da3447926fa4b1498e13d62bbeb5b68ae391cc03bd3b47e92. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEPI82320257.
Country Dance WoO. 14 No. 1, in C Major - Duo-Art 7205
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf5cabf87521f468d2998c9caa866fbb1d14e9c5cfd85b264e6a74ce499adb5. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEPI82321575.
Piano Sonata No. 13, Op. 27 No. 1: II. Molto Allegro E Vivace - Duo-Art 0287 Br
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047c902b4d3fb463698fb6fa4e996ddd635a3fdf53d76debdb5fa83dee00243d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEPI82439069.
Piano Sonata No. 25, Op. 79: III. Vivace - Duo-Art 0278 Br
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8ef8a4d28a93391786f87ad042567ce1bce337c3ca2abd67f67486478a5183. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEPI82439071.
Toccata in G Major BWV 916, No. 3 - Duo-Art 72369
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1f68c6deb13a479df0677a8f4934b506bf1aa1b2beb2827eef9acb97fa61d4. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DEPI82439077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27d464b8a6023188709b6ffa9611ce7a9248f36a3944051673ffdc5bf974835. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEPI82325042.
Scottish Dances (Six Ecossaisen) WoO. 83 - Duo-Art_5638
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2650070cc0f4729711dc32b9cc05e67821b9dc8e5bf54ba1cda1a1ab5027ec. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEPI82404070.
Suite for Harpsichord, No. 14: Gavotte Varie - Welte-Mignon 540
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b7c9ac935837e5cd066c6fcd1310dac642ffebdd422058af20d6878ad2e205. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEPI82320111.
Six Minuets for Piano, WoO 10: No. 2, Minuet in G - Duo-Art 67439
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5424bda65ef3a6006c9c78c3024e6daeceb40e8f9252e5a60308342ea6a57e58. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEPI82439056.
Piano Sonata No. 11 in A Major, K.331: III. Rondo Alla Turca - Duo-Art 6228
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7815a64106cd518fd74d211ffebd818f9a46420597548e84429386577b074f0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEPI82439072.
32 Variations in C Minor, WoO 80: Theme and Variations (Pt. 1) - Welte-Mignon 527
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56224996cbb8d78cdb652c3e66433e45beb35b6c65733176097a05f0a3f417f9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEPI82433502.
Ruins of Athens. Op. 113.: Turkish March or March (Arr. Solo Piano by Novaes) - Welte-Mignon 2881
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0694f111980a97c46aae96c2a8907fa887282f137fc5919293a870b2a90ac526. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEPI82405206.
Violin Sonata No. 2: Bourree in B Minor (Transcription by Saint-Saens) - Duo-Art 67719
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d4fdcdbc54439162876d3002c2ff946cd579fda0aab00d5a75c36b3897ed35. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DEPI82402345.
Humoresque, Op. 10, No. 2 in G Major (Based on a French Popular Song) - Duo-Art 7115
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaa489ee2ba80000a10e5925657d9784c8c4e76656f37dcd2e33ae1a7fbe8cc. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEPI82325035.
Don Giovanni's Serenade (Arr. Solo Piano by Backhaus) - Duo-Art 68250
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7120fb9934948a83aed556b45b262fefb90ea81778d9c61e48d57686808a7d97. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/DEPI82441461.
Chanson Triste, Op. 40, No. 2 - Welte-Mignon_1362
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170532db041a1591112ef65b701eae0321de25c748d2ed60edd1c14fb0e7a2b0. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEPI82404062.
Nutcracker Suite, Op. 17a (Arr. Solo Piano by Giorni): Dance of the Reed Flutes (Danse Des Mirlitons) - Duo-Art 6132
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24e28db9463e852d73ffb9b205a553fb9c485377efcc6e0bfa3d7e105730f59. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEPI82422534.
Piano Sonata No. 14, Op. 27, No.2 "Moonlight": II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429c69a1c39e4b29ee29afbca76bebaaf3c70b8a6b7b7e94688eab1877853670. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEPI82451764.
Piano Sonata, Op. 27 No. 2, Moonlight: II. Allegretto - Trio - Welte-Mignon 1246
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16adf08c1e763ff8ffbef7aec75aa156bd03a9ae880f0fccd27c5203c062877. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEPI82422623.
Chanson Triste, Op. 40, No. 2 - Duo-Art 5957
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995c68eadeb31b499af4206707e064fee71c25528371d2d82eb583f24ce17479. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEPI82401792.
Humoresque, Op. 10, No. 2 in G Major (Based on a French Popular Song) - Duo-Art D661
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9174d46a46f80c4ed2305b0d798f34caa4e0761b98d6c5b89af190a7852db535. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEPI82405205.
Chant Sans Paroles. Op. 2, No. 3 - Duo-Art 7154
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446208c1f32be0aaa2d2c1171589b7759d70107f54a11a3683a8f23ca1c9394b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEPI82439073.
The Seasons. Op. 37A.: No. 11, Troika (November) - Welte-Mignon 1956
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a5048c7d7b95cb3f61b6371849db1d046583131e3299b051e11098f75b5626. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEPI82439047.
Gavotte in F Major, WoO Anh.8 - Duo-Art S-3044
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ca06a68c09b990e6684edf4fa52fafbbc885eb4c24ea130b1e0a402308fa32. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEPI82320679.
Piano Sonata No. 16 K. 545 'Sonata Semplice': I. Allegro - Upon Aeolian Roll
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e13ea6b7f8d086d25e7c8b19367160d98c6b4830af658b9e42692ba217baacd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEPI82400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d8e0f03d65d6f572b6198d19172638c225a50480d461ac58129514e3c00d3d. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/DEPI82441450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0d9094d21bb15b5d2811b7e71d23d1f0cdf7ea97515d326a9113711114f2c2. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/DEPI82447451.
The Seasons, Op. 37a: No. 10, Autumn Song (October) - Duo-Art 73520
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c56bdb4d0156c4723d4e0e46533d363ad33afe3b4b531bd5b399a84fe3dc6c5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEPI82400364.
Piano Sonata No. 11 in A Major, K.331: III. Alla Turca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2669264f4a24e58df3bc9144abadfc4174fc2988825995850846e125af905862. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEPI82454119.
Symphony No. 41, 'Jupyter', K. 551 (Arr. Solo Piano by Ganz): III. Menuetto. Allegretto - Trio - Duo-Art 5440
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1edf646206239a38cefc4581df14336afe575bbbb66dec8a8fe2614fc289412. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/DEPI82439075.
Nutcracker Suite (Pt. 1) - Welte-Mignon 2995
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc19557317e231155a9a0ac24452e478c326a24b0eee1d22cb9f1b971abbfdc. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/DEPI82323967.
Chant Polonaise No. 5, S.480, Transcription of Chopin's My Joys (Polish Songs) Op. 74, No .12 - Welte-Mignon 1035
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67913f02d5dd0caa82aee9578a20c762f53af95e292c94aa00431526fedb349b. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/DEPI82402344.
Piano Sonata No. 11, K.331 in A Major: III. Rondo Alla Turca - Welte-Mignon 1206
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3829b54395814db3c26a4dea59a4082857493a579df5bffb5dc122cfa3720420. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEPI82319534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13ed5e7ba2d57f5fc657133dfdb9e4faeec079aec01c242f82ff5cd3a34d8a2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEPI82437471.
Romanze in A-Flat Major (Incomplete Attr. To Mozart, Monatsbericht -1851- K.Anh.C 27.04) - Duo-Art 7295
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952c154b2c65aa671986442071c5565d43b32030eca5d4577c790c976cf5af2b. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/DEPI82437482.
Iphigenie in Aulis: Gavotte in A Major (Arr. Solo Piano by Brahms) - Duo-Art 6476
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc44dc88e03f938ca60ac93428ac5f199fe2e079d135359527fc17595072726. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DEPI82400349.
Piano Sonata No. 18 in in D Major, K. 576: III. Alegretto - Duo-Art 67850
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ce6210e6396a70863dd0fed5a54307421733b190f8bcc989e7b11c7df096b9. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DEPI82435210.
6 Pieces, Op. 19: Nocturno, Op. 19, No. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314c49c8b3442382bb916dabf2bc82ed528df6e7d2fd6311a5dbb23d038d7f47. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/CH6542271693.
Divertimento K. 334: Minuet (Arr. Solo Piano by Bauer) - Duo-Art 74110
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8227b8e3edcf2f2a8c5fe4b7ff6f41544a4e45261d705734b52f55560163e080. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/DEPI82446416.
The Seasons, Op, 37a: No. 10, Autumn Song (October)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fdfee935fa6cc4ba42dfc0eac97e896f1e30226bc2a5092008e7ec9c9c0b6b. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/DEPI82313020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e3b3d7cf60e3a783c932f712abcae54a55011efee22c1c77f737f9516e1d9c. 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/DEPI82308084.
Fantasia in D Minor, K. 397 - Duo-Art 5677
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34d13d0e182d28df49c764527cf3574e314c7a496242ec5d06714cbbd603b79. 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/DEPI82308829.
Fantasia in D Minor, K.397 - Upon Aeolian Roll
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250d0aecc40c6f4edff270977ab5dfe118bf48b5c7202c5e1a6cd54105ccc0b3. 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/DEPI82416651.
Chaconne in G Major, HWV 435 - Welte-Mignon_3406
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67ed91a76eb7abd118a0e1d9abafc4689b1989c4665131834c0793a05a944ea. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/DEPI82404061.
"060 Classical & Contemporary Masterworks": Iydra
"111 Classical Piano Essentials" : Trepak
"074 Classical Essentials": Echos Du Temps
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39510da0883bc49b2539ea13e48343f84324e635373488799f10bd99efe6b8e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DE1QW2506278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132f38c32916f666fdd511a08e81e7df592808ba90f11f8e7c8cd63de4a91114. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DE1QW2506279.
Nocturnes, Fp 56: Nocturne No.4, Bal Fantôme. Lent, Très Las Et Piano (C Minor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b67f73f396f4319e425734073901a459026fee5a320756fce88b95400c9470. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEPI82308257.
Nocturnes, Fp 56: Nocturne No.6, Très Calme Mais Sans Traîner
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d00bdd61e1d0486f45e0681bd20bb0495212193c29155ffdab999ca395ab0d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/DEPI82308258.
Piano Sonata No. 26 in E-Flat Major, Op. 81a "Les Adieux": I. Das Lebewohl
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697a291c16739b488a019f6f4efd938a5603049b6a994d2a8028945e38b3cee5. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/DE1QW2506277.
Tableaux for Solo Piano, Book I: Echos Du Temps, Op. 31
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15367432db7c3244c55a860dcbdac9ac4daffc81340bb96aa508a3c9c17b1b7d. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/DEPI82308260.
On an Overgrown Path, Book I: VII. Good Night!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8821afd7dedd894645a62fe15a4b6f7aa84d70a6cae52e9f297cbf404ba7a4f. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/DEPI82308223.
The Nutcracker Suite, Op. 71a (Arr. 4 Hands Piano by Langer-Sternberg): March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca89104fddf34d3c80783f287fda097161978180207e922092d38ccc093da10. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DE1QW2500186.
The Nutcracker Suite, Op. 71a (Arr. 4 Hands Piano by Langer-Sternberg): Dance of the Reed Flutes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562150e7d04c1b89a56c059dcf5a7986e23c88aff34c38ee072169e1575b5295. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DE1QW2500188.
The Nutcracker Suite, Op. 71a (Arr. 4 Hands Piano): Arab Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd411c9d017c852cf326356d23faa03f86fa3bae60dda779729ca61e838bcab28. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/DE1QW2500187.
Prelude in B Minor BWV 855a (Arr. By Siloti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b768995d7e364d16af50fd0491a40941b2a5d7817af53b72c5419e7467554b. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/DEPI82458835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef19d7919a68d9d875b4cff2766bc3a5bb7eec6e689e9aff57bba77728141289. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEPI82458847.
Six Studies in English Folk Song (Arr. Flute & Piano by Katrina Penman): Vi. Allegro Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6753cf7ad8bcc9ddad403433c162307a20b35de417de53155827c7ed9f39541d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEPI82450015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93927cd28a519b57d5b364996668c0b84319e39000e3b053e9270e5d5d252a6b. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/DEPI82453665.
Xàfec de Llum I Tenebres: IV. Iridiscente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13731c37cb9cd7a41bf9b39a5df5763a7699a851aa6cc6bde144c43c51f45ab. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEPI82450892.
Le Joie de Pierre-Auguste: Andante. Astor in aeternam...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772e40e99d1d94bbff52b73e6c67fc6feed01fa4c01e9e958aa16daec9b2bc6c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEPI82322156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e42ae135a87613f87ea0dad2e5cc5fac5286ab003924ed533441155a796fed5. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEPI82450025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5128188c634c5d06940dbf276dfcacc400e51cc05f8dae025d6be2977c64418f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEPI82326087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084d666d9b96cf5f0f821b883e75d43cc443a0f3a6bc0477c4eb650641b1f007. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/DEPI82437911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7313eee2ed30de813ba0484081d73fd6dd69d570c8811a71f484e1ed11a325ad. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEPI82439061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965b215ed1f46b46e976fb092bc559d1d8ab099171e2bdb305c77abf8ca8bb17. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEPI82439060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb988bab772941cf137f5b1a17b9627ce1fb3652dc2991e59ff9e7272e67703. 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/DEPI82400125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6ad95d28a86a3894a5f4755022f2c734ff4d1fad7ee4bbf9c074e4f5995bd6. 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/DEPI82409017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf504d2604adf5ff315d95ee55f09820b369de1b38bf3aaa095ca6f57e9e70e56. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEPI82437480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a6fc204a73e423ed3444052c4d7f9c8982ccb6cd8d6be87e2535b9ba245976. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEPI82307703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f5ac4e6190b1599dd9f32f4cfc48a915ba9f779f73d73e9da1212829cc94b6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DEPI82422618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf510f0c8f0aa796c6666453e3fe35eb0778e55c9adb096db40f49f6ba291ad91. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEPI82433504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefca77fb0d2bc7289805c5edb9eefacfcfb3d01965ef2d0c6e4e05888fb31f75. 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/DEPI82400397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a883562b7d63d711120ceb4d06c6a262aaea4461e0b5d36112340ba235e320. 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/DEPI82422540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fa296ac8a1ac5762514de39edb04028aa45564ecc48adccadf093ee9ba55da. 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/DEPI82422617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a1f24ffe12bdedc0f3f1f84bfad8fe667153f6f8e606df612929b3e2256110. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/DEPI82439070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a082c296e71a08da3447926fa4b1498e13d62bbeb5b68ae391cc03bd3b47e92. 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/DEPI82320257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1f68c6deb13a479df0677a8f4934b506bf1aa1b2beb2827eef9acb97fa61d4. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DEPI82439077.
Slavic Whispers: Piano Music for 4 Hands
"069 Classical Piano Evocations": Ballabiles
"072 Hidden Treasures of Piano": Bal Fantome
'Atalia' - Contemporary & Classical Masterworks, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56aaa922857b3b2beb8f93efc2a6560d2a1e7cd70037983606706f603694d72c. 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/DEPI82511999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb169a2e3fdf3bb9cabfe617a00f7c597a7be359e0f9c0af51c408d76f94a4f6a. 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/DEPI82503023.
'Atalia' - Contemporary & Classical Masterworks, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c00117ebfeb1d1cc7cf754db2ad43bcfcf929eb1ca2192166f024119c8190d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEPI82511996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0605cd4b52afd273ca9d7f7d20cc1a918cddec172d74ff50976ac46cd5aa0ada. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEPI82509603.
'Atalia' - Contemporary & Classical Masterworks, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489cabadb1b7fcfc2afdf1e77248be39d4c8fdac53fbc3957bc7d054d48a5752. 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/DEPI82511997.
"054 Classical Music Essentials": Far Blue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2229a6ae6021ece5ada493d0f7b272508d2e54870549bd491ff189f7d6feded8. 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/DE1QW2502992.