The Shanghai Quartet is a string quartet that formed in 1983. The quartet is made up of: first violinist Weigang Li, second violinist Angelo Xiang Yu, violist Honggang Li, and cellist Nicholas Tzavara
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 0xb8d64751f4015f29a66d4716c70bea809462ec047f3f20089a310919d1588188. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93dca9d5-1213-493b-8f6e-deb762b79c49.json and https://artists.proofprofile.net/proofs/artist/93dca9d5-1213-493b-8f6e-deb762b79c49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
40 Tracks for 40 Years: Delos' 40th Anniversary Celebration!
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 0x2099ec833c916fc67f9dcee097bf71f63b6ad64b4beecec2883076eec4fe11cc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0860813.
Annees de Pelerinage, 1st year, Switzerland, S160/R10: II. Au lac de Wallenstadt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c02f0f365c2d556a99e5a6d63aac87847d9ac7ce4a2f8cef68c22f47cd2755. 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/USASX0860815.
Herz und Mund und Tat und Leben, BWV 147: Chorale: Jesus bleibet meine Freude (Jesu, Joy of Man's Desiring) (arr. for organ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a730a323e6dd0e3de48aa73d30bfbb5b86b74a85af715dac7b17aa28d999d1e. 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/USASX0860830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b725b25431c31d5f88f9eabc088625db450b110ade6509d067aa030fdf3e24c. 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/USASX0860818.
Keyboard Concerto in D Major, Hob.XVIII:2: Piano Concerto in D Major, Hob. XVIII:2: II. Adagio molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a1b195ea3fef89ac3a54959a856eb09cb9f200e463dca6c8b0aa5900f5ebab. 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/USASX0860808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758223faa50b51883b230320eefe528f319f8777058194c2b33a44e28c6c4071. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0860810.
Cello Concerto in D Major, Hob.VIIb:2: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36056112af24971cae8fec25d4956da2e32371f94a5a678f47b42005cf6196a. 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/USASX0860812.
Daphnis et Chloe Suite No. 2: I. Lever du jour
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0507a0a016e683412bf7695d24062ad457cc698915a8d2919e3f384d4d300ab. 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/USASX0851202.
Heigh-Ho! Mozart - Favorite Disney Tunes in the Style of Great Classical Composers
Water Music: Suite No. 1 in F Major, HWV 348: VI. Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2c1185c669588e4547bbf64dda837514a5496077c314cb094d0897b8af2826. 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/USASX0860901.
The 4 Seasons: Violin Concerto in F Minor, Op. 8, No. 4, RV 297, "L'inverno" (Winter): II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e48d8a8b907503882fe3fc58c695e7a554bc2a3451bfe21a669874e3395de6b. 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/USASX0860902.
Overture (Suite) No. 2 in B Minor, BWV 1067: VI. Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9ebd169a2b748545f2694a2b708d52a3f9582c1ed12cb28055219be44f60ce. 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/USASX0860903.
Canon and Gigue in D Major (arr. for guitar quartet): Canon in D Major (arr. for guitar quartet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaadbd4470ea7becd488c13a448a581d4f35587cab7e30c59a713fca92e6267a2. 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/USASX0860904.
Trumpet Concerto in D Major, TWV 51:D7: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f394f1e7fcfbd68bbae3aa6b7d7107a56491a869921cfb98242d39f1f6a5104. 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/USASX0860905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ad0354dc42e3f461657cde195acc0b741fd69c7d389ebcdbd8fea65994c036. 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/USASX0860907.
Essercizii musici: Trio Sonata in E-Flat Major, TWV 42:Es3: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295779e10c6e336f03f7fc2b9cfd795931d40832c02b0ffc204d099560947805. 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/USASX0860913.
3-Part Inventions (Sinfonias), BWV 787–801: Sinfonia No. 5 in E-Flat Major, BWV 791
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7086a52b00c513331aac97620a9a269b04e4abc614752e98bd33a6974c86062. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0860914.
Violin Sonata No. 1 in G Minor, BWV 1001: III. Siciliano (arr. for 8-string guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6437fb8d280631ca2693b1ccdd6bc6949e04bd5469df343655ec778d6f4e67e9. 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/USASX0860915.
Water Music: Suite No. 1 in F Major, HWV 348: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef8c1207db5b838af51e7585156f729dbd14c1c44dd26517cbf132757f88664. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0860921.
Girls Gotta Dance! - Rhythms To Excite the Muscles, Symmetry To Stimulate the Brain, Melodies To Delight the Heart
Mystery Classics - Curl Up With the Classics
Miaoling de zaochen (Miao Mountain Morning) (arr. Yi-Wen Jiang for string quartet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580467049e9740a08c35134c72b9c6ec08c7b3d81bfe68886686bba5e138d1dd. 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/USASX0830801.
Yao Dance (arr. Yi-Wen Jiang for string quartet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2402ed5fabd88c15d7e5d8a54f5a1b555cdff152741db8ab279e7c881e7051. 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/USASX0830815.
Pictures from Bashu (arr. Yi-Wen Jiang for flute, violin, viola and cello): No. 1. Morning Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5b221c0a83c83cae783366b4ef25d0adf37426de869487ccbc0ad47546d7a5. 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/USASX0830816.
Reflection of the Moon in the Er-Quan Spring (arr. Yi-Wen Jiang for string quartet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd1e5af8d597981b96d2aa536dda7a106f0100ae204f6224644eb1a5b505a1a. 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/USASX0830807.
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
Shepherd's Song (arr. Yi-Wen Jiang for string quartet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617ce9d580a6c192483883e22023cb24efc6ddb6431b8e16348e098469b1185c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0830809.
Orchestral Music - Handel, G. / Prokofiev, S. / Mozart, W.A. / Hummel, J. (Classical Fitness - Music for A Healthful Lifestyle)
Beach, A.: Theme and Variations / Ginastera, A.: Impresiones De La Puna / Foote, A.: Nocturne and Scherzo (Music for A Sunday Morning)
Beethoven, L.: String Quartets Nos. 8 and 9
Dvorak: String Quartet No. 12 - Mendelssohn's String Octet
Ravel, M.: String Quartet in F Major / Bridge, F.: String Quartet, "Bologna" / Novelletten
Zhou, L.: 8 Chinese Folk Songs / Poems From Tang / Soul (The Flowing Stream - Chinese Folk Songs and Tone Poems)
Mozart, W.A.: String Quartets Nos. 22 and 23
Mendelssohn, Felix: String Quartet No. 2 / Grieg, E.: String Quartet in G Minor
Hovhaness, A.: 4 Bagatelles / String Quartet Nos. 1-4 / Zhou, L.: Song of the Ch'In ( Spirit Murmur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75944e64b7c4651a797fb97d53cc5101738695c299449de6b68f583d24865c7. 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/USASX0816201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61f04da34a825c969d60b912b8f598e7f08f19cd9be99c5827dfb894a6505dd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0816202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bcf66b86ee5635de670b10ce493317c81d6fea7325aab1fcb6fbe22188cc38. 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/USASX0816204.
String Quartet No. 1, Op. 8: II. Fugue with 4 Subjects
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183fa0e9d3ed2f08b6d115bb873cace0e30481c2cfbfff55ce173c0269584605. 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/USASX0816206.
String Quartet No. 2, Op. 147: VII. Hymn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61467ba5e7d94ed445339eedbaf0141cd99ce937438d1e51430a8795f68ac1bd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0816211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbd694d5c2656e0787d26463640f775827f237c6e5db6321838f5f0ecaeba99. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USASX0816203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ac1a2ce170f7e35ac100a54723519036dce92e8c0657fa23b27b263d2c5b1b. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USASX0816205.
String Quartet No. 1, Op. 8: III. Andante lamentado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31942d2b4201d61b358d2085c39871240f8264870b36361b016d587b478a4f0a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0816207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58cedc08ee3f58c9fc8452b8e827862274d2c0ab4c034e9e5938194d171bf44. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0816208.
String Quartet No. 2, Op. 147: V. Gamelan in Sosi Style
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf30211a0646a6b41784a5970b9aec0c47abc79ec4344bc3f528301810c6d8d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0816209.
String Quartet No. 2, Op. 147: I. Spirit Murmur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf165006ac615e4db8e61677555aef4f3a1c957204ae676f4b522c297b2452cdf. 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/USASX0816210.
String Quartet No. 3, Op. 208, No. 1: I. Andante - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6cefc4f4d531ac9116fc7386ca9f4feb30e17a43c73e786ac55e057c046278. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USASX0816212.
String Quartet No. 4, Op. 208, No. 2: I. Adagio ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b54d40b653d2623164d04716fe2472c09b0aba9701a67d4c253c8f879e31aa. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX0816214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b5b7b767e87c842572b8b8e5f6ee7ad2b89393ad8e49fb436d620644259c8b. 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/USASX1142105.
Symphony No. 2, Op. 132, "Mysterious Mountain": I. Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833d073c95d2b9fc1b4fd554d60c9453f47a831feeb3b84e1571a2c2dabd1d97. 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/USASX1142107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2274119adf1a63d7c985fcc55cfcf3c0b6c57a6d0f6e3c275e9158034377683f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USASX1142103.
Hovhaness, A.: Hovhaness Collection, Vol. 2
Guitar Music Of Mario Castelnuovo-Tedesco
Hovhaness, A.: Symphony No. 29 / 4 Bagatelles / Rubaiyat / Prayer of St. Gregory / Celestial Fantasy / Gloria Patri
Bright Sheng: A Night at the Chinese Opera
Brahms, J.: String Quintet No. 1 / String Quartet No. 3
Lei Liang: Verge - Tremors of a Memory Chord