Astor Pantaleón Piazzolla (, ; March 11, 1921 – July 4, 1992) was an Argentine tango composer, bandoneon player, and arranger. His works revolutionized the traditional tango into a new style termed nu
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 0xa08841b03a733589a7dd590ef187a9ee318d84d6e743286ed26ecfa1af8e72e7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fe936d1-d019-4ffe-b7be-c0a3e6c51adc.json and https://artists.proofprofile.net/proofs/artist/9fe936d1-d019-4ffe-b7be-c0a3e6c51adc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vivaldi: The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": I. Allegro non molto
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 0x4b29229fcb2cfa775ca18acb0e2edd7ba1ed32b0fc2280da7ce24fee8cc28148. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBAYC0003260.
Mozart: 3 German Dances, K. 605: No. 3 in C Major "Die Schlittenfahrt"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a30aeb3e387db09884565a468ce5a1b478840cd396afa850cb165edcf884088. 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/GBAYC0501188.
Debussy: Children's Corner, CD 119, L. 113: No. 4, The Snow Is Dancing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb772970fc04d5466265330dd8c9a1b9cbf0a84fe3201c14cb19b06b640d6d44. 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/GBAYC8802401.
Purcell: King Arthur, Z. 628, Act 3: Prelude While Cold Genius Rises - Song. "What Power Art Thou"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4e9dd39f200ceb23814edae313bf77da9707df56c04268fa4f18eece433127. 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/FRZ209500102.
Glazunov: The Seasons, Op. 67, Pt. 1 "Winter": No. 3, Frost Variation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f468b788999e48274c9d0f0f5a48b8689aa63e6630f70e341fada0dac1ada63. 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/GBELP0400222.
Schubert: Winterreise, Op. 89, D. 911: No. 1, Gute Nacht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe273a960f6e52ccb91eeab018b553c3637d6f56388daec594ccb7a9cb2eaa6ce. 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/GBAYC0401248.
Chopin: 12 Études, Op. 25: No. 11 in A Minor "Winter Wind"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7160e7d623541c1069535b7c26aad893fd0e76caaaa6945a83709b9a9458f2a. 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/FRZ209908223.
Mendelssohn: 6 Gesänge, Op. 19a: No. 3, Winterlied, MWV K72
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7dabd3f4e6d7196062cea052ee94abb92b36d193e8f404d0c0771d2865b922. 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/DEA809224512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bd121c3e9ed3c6c0c50982f479d8dbe65b967fd851dbca46290334425a1c8a. 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/GBAYC1800770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1127d96aa11e4e7362cc02519151b5b396e4891a0334e49a4f827683efe4d0b9. 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/DEA809646800.
Haydn: The Seasons, Hob. XXI:3, Winter: No. 39, Lied mit Chor. "Ein Mädchen, das auf Ehre hielt" (Hanne, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6b4b2e64166444271b9e685059187fae0a96f9a1d27bdecafd9ffb6087eb83. 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/DEA808780046.
Jarre: The Engadiner Suite for Piano Trio: III. Winter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf469592b46b0d9435ae76e8647530e2dc035cac4ee09495a53be69710a15f3eb. 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/GBAYC0203029.
Wolf: 6 Lieder für eine Frauenstimme: No. 5, Wiegenlied im Winter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa468ffbdf18ebe70fc6fc26cef20be1819a926d6f37c579150a8eb73d0355a51. 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/GBAYC1503033.
Prokofiev: Cinderella, Op. 87, Act 1: No. 16, Winter Fairy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ec6cbe86ffae4ae1fb60a5099caad290e9c88762b5f9b4821dcd8c7a98739f. 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/GBAYC8300863.
Delius: 3 Small Tone Poems: No. 2, Sleigh Ride
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05ae8c94da98f1f3db02249eaa0cb8a931e1d4d5ba391f679db6bc23ce53846. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBAYD8500154.
Beethoven: Symphony No. 7 in A Major, Op. 92: II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7bc942c1bd68bd27012bdd6f5f108569cf8dc989147a3ceaf9eee168632b15c. 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/GBAYC2002550.
Shor: Four Seasons of Manhattan: III. Winter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e01759bb23fd871164f9dcc5b79211ac18678196a368ee10e7842fd59fbad4. 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/GBAYC1504150.
Ravel: Piano Trio in A Minor, M. 67: I. Modéré
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf34ab3b4f7fe730c8ecd9dda9d12d7cf9e1b9d248087f1bad74f958b3e1d250. 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/GBAYC0102535.
Hahn: Le rossignol éperdu: No. 52, Hivernale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6538d01debb462d757ce5b4cdeead5a28f76bbc9acedbed38b0900d375ee950. 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/GBAYC2101529.
Piazzolla: Estaciones porteñas: IV. Invierno porteño (Arr. Assad for Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e59b4b8625725ba246dbfa7dd3c564dc6a9483cc4d4c80594f9d3af88406dff. 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/GBAYC1600493.
Rimsky-Korsakov: The Snow Maiden, Act 3: Dance of the Tumblers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7665b4852c282fab0f4c2a848785f7171d757ef096146cf5e9675a29c16e4d9a. 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/GBAYC8602322.
Elgar: 2 Part Songs, Op. 26: No. 1, The Snow
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03210b7f4f5009972a1ba219f28a436a6229ed2127eccb2b6d6fbc538008a0b3. 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/GBAYD8400270.
Violin Concerto No. 2 "The American Four Seasons": Movement IV
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643e7b9a1a83ba377c6e5cb20d8a07d23b4f9a5c5a255c9a19590c2f326000d5. 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/GBPFW2200247.
Liszt: 12 Études d'exécution transcendante, S. 139: No. 12, Chasse-neige. Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0e65f95c009a96289fd73058cf11b6deea2ab3a63d38a0514cee0a435d7254. 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/GBAYC2202352.
Bach, JS: Weihnachtsoratorium, BWV 248, Pt. 2: No. 10, Sinfonia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8678cd396ed0ab5503f07e9b278fdaa695999905a42212ac29f1a4b75a11585d. 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/FRZ209616710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db5965e867e020fd801d576cb3cb7c6d3eb1649716252fabca5bcede3c82adb. 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/GBAYC9303266.
Charpentier: Dispute de bergers, H. 484 "Il faut rire et chanter": II. Brouillards, glaçons, neige, frimas
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73994316e20824c097975ea780a28523b9d9a3d72734096a8d97dd6b00342930. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USNO18746902.
Milestones of a Legend Master of Tango Nuevo, Vol. 9
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae95c2b68a3bc50042ea05e5ae09b9a4f1e6bfa3b582de571a98069924a80f2. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF037100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8daae1259a6d9f70f714a501cb481a2b9f38bef13552326271b4638afbbf6ac. 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/ARF036100005.
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 0xccc18deeff3a527833ab192b1b7b17f6d327be7b9398baf3409d7c3ea5c04b07. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ARF037100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35247ce16936a61eedc61835515545d499e8dfefd417ea6045d85ba441112fbe. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/ARF036100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e46da1f750dd99cc04fc39c48b651b6db10f7cf1d2167eff5fb7c8f26b8c48b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ARF036100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352f0dc62937e2bba579a61fbf8322f8d77ce620c6e14cdd6497a8a60c36a0a1. 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/ARF036100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b3dab6703d4cad8d4e614a75b3c8f512145b92ae6b1d80a0d37b6ffd9f9ebc. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF036100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370d0d7baf3a591b718b3c1f4e17fc4c84866507a493df57df9264fd755bd0c9. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF037000078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe78aedca89e423d58b311da4023d762b48b8ad0ed18f747591ac6054b9f303f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARF220500605.
Chiquilin de Bachin (The Little Beggar Boy) (arr. J. Lenehan for 2 cellos and piano)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2dce985fca370500c92b40eebbce9521d12bc33ecd44ae53be17750ab06c310. 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/GBPFW1100632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a7fd5c9bc0b583bec923eefaed5dd4c110639483b56e03a5fa185e9bdfa68d. 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/JPPO02400708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0382afef775326cf5ece58638dccf056897eebfe3355bd855161d6802eb5f742. 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/FRZ051500722.
Piazzolla: Histoire du tango: II. Café 1930
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76805ba88f09710696a8b35d4fd98d5cc0d003468baadc7b2e10e6209dd9da57. 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/GBAYC1302428.
Libertango - orchestrated by Luis Enriques Bacalov
Orchestra dell'Accademia Nazionale di Santa Cecilia
Bacalov: Misa Tango; Tangosaín / Piazzolla: Adiós Nonino; Libertango
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Hemmige (arr. F. Jud for brass ensemble)
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Piazzolla: Histoire du tango: I. Bordel 1900
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Stravinsky, Brahms & Piazzolla: Works for Piano-Four-Hands
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Piazzolla: Histoire du tango: III. Night-Club 1960
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Tales and Myths of Gothia - New Music for Concert Band - Demo Tracks 2018-2019
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Adíos Nonino (Tango Rapsodia) - orchestrated by Luis Enriques Bacalov
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Cello Arrangements - Piazzolla, A. / Villoldo, A.G. / Gardel, C. / Salgan, H. / Gade, J.
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