Walter Berry may refer to: Walter Berry (bass-baritone) (1929–2000), Austrian opera singer Walter Berry (basketball) (born 1964), American former professional basketball player Walter Berry (politici
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 0xe7239f514baaa768a8086c71379707c9200ceb206e6228f2dba53e8b6626ca19. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52664938-e4d8-46a0-8729-20d9532679f0.json and https://artists.proofprofile.net/proofs/artist/52664938-e4d8-46a0-8729-20d9532679f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Coriolan, Op. 62: Coriolan Overture, Op. 62
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 0xa42171424319c333cad2cc73260def50b878fa381b0d4cd06f7a10e483df1e0c. 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/DEF056500090.
Piano Concerto No. 4 in G Major, Op. 58: I. Allegro moderato (Cadenza: Kempff)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4675e0a654591c1502e4ffc5c7d84319967034cde77c82990eac61e093ef1cd0. 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/DEF056101732.
Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc7a28cb87c1cecca2abc58a296a36aaf223818c2874b764c18c92fdb86c321. 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/DEF057401772.
Symphony No. 5 in C Minor, Op. 67: II. Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf21afa1a4079c6a53c831e66c8d7459e1e32d26400a6571009686311e163d48. 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/DEF057401773.
Symphony No. 9 in D Minor, Op. 125 "Choral": I. Allegro ma non troppo, un poco maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc84a52d1a82e3001e12ed6c7c487e593f80201a50487a75a0049d4fd9d80a9b. 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/DEF056201685.
Symphony No. 5 in C Minor, Op. 67: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800a7bba1e274d9cbbe4a4e741aceb2c2031df6109cbe2e790e0fd9ef6e9c5bb. 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/DEF057401774.
Symphony No. 9 in D Minor, Op. 125 "Choral": II. Scherzo. Molto vivace – Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edfe64dc4788c583ddc5d437d5058f10b27133fbbce02f35bd080ef2260f349. 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/DEF056201682.
Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": III. Rondo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0df7c2d1a8a254a97074e3e024b365ad3a2be0666b08b3ce02df43a1c819a1. 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/DEF056500143.
Symphony No. 5 in C Minor, Op. 67: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0157fb19376d55be069848ec15632c446b44a490e896dad0d62828772926de82. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057401775.
Symphony No. 9 in D Minor, Op. 125 "Choral": III. Adagio molto e cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1157711bb2b8b3f5f0b9f857561bcc6cde2c55b00744774fb593c6e12ad3c452. 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/DEF056201686.
Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight Sonata": I. Adagio sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a0d488b99dd25deb0abe7142a90645f76f054fcb2f844679406eb2de0834b8. 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/DEF056500171.
Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b76abef91bda3d451efa4dba4560babbb1072a607f55ed6244758148a5d3a5. 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/DEF057601362.
Symphony No. 9 in D Minor, Op. 125 "Choral": IVa-b. Presto – Allegro assai - Recorded 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8392be11448cf54fabeb99cdf19869d99c09642fd1c0643ebc00b6497e8eef89. 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/DEF056201687.
Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight Sonata": II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be663000a2e3a22b6ff8c80afb816abaaf7a51028abcdc8d71639201c03b2f7. 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/DEF056500172.
Symphony No. 7 in A Major, Op. 92: II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8696a868897006f7eb78aacaa2d04edaad9677b12bda548f67fb46f0197748. 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/DEF057601361.
Symphony No. 9 in D Minor, Op. 125 "Choral": IVc-j. Presto. O Freunde nicht diese Töne – Prestissimo - Recorded 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb6c122ecb1d64d4a41136261e99ed7889461d39d078a5694351f853aa8b189. 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/DEF056201688.
Symphony No. 7 in A Major, Op. 92: III. Presto - Assai meno presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776db11e9050fc41fce3314a7f5354c137936c548f001006f4a0bf53de7072c0. 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/DEF057601363.
Symphony No. 7 in A Major, Op. 92: IV. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6c58f6f4f9ed2a10fe81b7894e2bd883dc9d08e91fa67a0b88bea0798b2f40. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEF057601364.
Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": I. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388af80b6abab40c9d1ee6eab763e4d5852c6e6d6d85795a670a5fb6a3415503. 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/DEF056400291.
Il dissoluto punito ossia Il Don Giovanni
Mozart: Così fan tutte, K. 588 (Sung in German) [Recorded 1957]
Requiem, K. 626: I. Introitus. Requiem aeternam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee56d788a1da77051dc2b343f1a1fa19e678fd17fcaa6593efd5d6577c3781f. 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/DEF056131203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e26d5401f43a75b5d01778c1f90194f08c65c3719e7c368f87ab688a08d6982. 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/DEF056131204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc8398078727f5f93863ba33170be94323159010b3033d1b2e8625f9cdd6200. 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/DEF056131205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932e0a523d74b6544cc35b8a05e4ca85a368601420fdfb01ead3444ee4e77464. 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/DEF056131201.
Schumann: Spanisches Liederspiel, Op. 74 - Brahms: 18 Liebeslieder Waltzes, Op. 52 (Live)
Richard Strauss: Ariadne auf Naxos, Op. 60, TrV 228a (Wiener Staatsoper Live)
Richard Strauss: Arabella, Op. 79, TrV 263
R. Strauss: Capriccio, Op. 85, TrV 279 (Excerpts) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30198bbb59655ffec104be3cd69b1900fb4d05117c4ce26a33f8a9b68eb54ab. 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/DEB950769701.
Handel: Giulio Cesare in Egitto, HWV 17 (Sung in German)
Don Giovanni, Wozzek, Fidelio, Frau ohne Schatten, Lohengrin, Cosi fan tutte, Nozze di Figaro, Rosenkavalier, Parsifal, Falstaff & Capriccio
Mozart: Don Giovanni, K. 527 (Sung in German) [Recorded 1955] [Live]
Kienzl: Der Kuhreigen, Op. 85 [Recorded 1951]
Dvořák: Rusalka, Op. 114, B. 203 (Sung in German)
Adam: La poupée de Nuremberg (Sung in German)
MASTERPIECES presents Wolfgang Amadeus Mozart: Die Zauberflöte
Siv Wennberg: A Great Primadonna, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afedbac8643a2f118d5073e2b78f18711beaeb979145bf7994f921f66d778d5. 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/USX761302005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6928abd3e19ad677aedc04cc76dd9afce116ea07cc829664c5d730f55014bbc. 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/USX761302029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2583002881ab9c47bd52c838094178b286b825a55f27b7d673885c339eed8aa. 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/USX761302030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4b1d271f563062905604e6065f58866ab7428888c72943fb3deab17c4f8dfb. 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/USX761302011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8de3d4b6a88e77fc9684957f54e806dde44cb88e190ca9dcdfa800097898345. 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/USX761302031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379d5edff7b43895c9b905b02fbe55e2e8f57fd1a498e353485ec4959555067b. 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/USX761302012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4815571f7b64307c437f9179f843b9d835cbc3715b73b29fcc24fc51b7275c5. 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/USX761302017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7668a7852fd9a9c317b788e78d308eaf279d662151d07dade1d5a67e67ba2148. 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/USX761302018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b76230d165916033000a8405e30a436389bf98b8e13e7652e69ac5281dc1335. 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/USX761302019.
Beethoven: Symphony No.9; Overture "Coriolan"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42171424319c333cad2cc73260def50b878fa381b0d4cd06f7a10e483df1e0c. 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/DEF056500090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc84a52d1a82e3001e12ed6c7c487e593f80201a50487a75a0049d4fd9d80a9b. 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/DEF056201685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edfe64dc4788c583ddc5d437d5058f10b27133fbbce02f35bd080ef2260f349. 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/DEF056201682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1157711bb2b8b3f5f0b9f857561bcc6cde2c55b00744774fb593c6e12ad3c452. 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/DEF056201686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb6c122ecb1d64d4a41136261e99ed7889461d39d078a5694351f853aa8b189. 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/DEF056201688.
Bach: Ein feste Burg ist unser Gott, BWV 80 (Mono Version)
Mozart: Symphony No. 25, Piano Concerto No. 26 & Mass "Coronation" (Mono Version)
Mozart: Così fan tutte, K. 588, Act 1: Terzettino. "Soave sia il vento" (Fiordiligi, Dorabella, Don Alfonso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a410bb23eec4e62fed10d09e13537499c47e51415e925f8855e701e76af512. 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/GBAYC0001052.
Die Fledermaus, Act I: No. 3, Duet. Komm mit mir zum Souper
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0b22b4456bb7503d7353e9d2b86a2111fc7c15ffff16c5ae75a23155af7d0e. 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/GBBBA6075010.
Die Fledermaus, Act II: No. 8a, Ach, meine Herr'n und Damen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809937ec204336626b9a18d40e8ba9a6a78abc9d385f9300cc7aba6d27254e3c. 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/GBF076040513.
Die Fledermaus, Act II: No. 11, Finale. b. Herr, Chevalier, ich grüsse Sie!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2916f6b379c055aa89472adcca90959be99f41905416a73a055856c0ec51afc. 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/GBBBA6075080.
Die Fledermaus, Act II: No. 11, Finale. c. Genug damit, genug
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5db185b4c12d403f3a9f676247f672fa50ceac68fc061984dd0ddd989cc0d3a. 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/GBF076040529.
Die Fledermaus, Act III: No. 16, Finale. O Fledermaus, o Fledermaus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09543d5c103ffa5d6f16aefe9de129c1bcd083d92d883a14858f1768d7f2d86a. 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/GBF076040534.
Mozart: Don Giovanni, K. 527, Act 1: "Non sperar, se non m’uccidi" (Donna Anna, Don Giovanni, Leporello)
Mozart: Don Giovanni, K. 527 (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c44f49d122a2edd2799fff002909738554522b155f737ed0a4910aa4028d28. 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/GBAYC2300867.
Mozart: Don Giovanni, K. 527, Act 1: "Manco male è partita" (Don Giovanni, Leporello, Zerlina, Masetto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ae9d8e1e1836100ed9615a3feae1656da85ec139a73a81b9fb09e4c16c1cfd. 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/GBAYC2300876.
Cosi fan Tutte, K. 588, Act I: Soave sia il vento (Fiordiligi/Dorabella/Don Alfonso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a410bb23eec4e62fed10d09e13537499c47e51415e925f8855e701e76af512. 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/GBAYC0001052.