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 0x6334a33ce82fcbc39dc882814c6bed1e522d30b6d88ae097be8c955e3347ab80. 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/e1f2fa42-87ac-4db5-bee5-4bd763756aac.json and https://artists.proofprofile.net/proofs/artist/e1f2fa42-87ac-4db5-bee5-4bd763756aac.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Stolz: Der Favorit: "Du sollst der Kaiser meiner Seele sein" (Manon)
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 0xb9a1e359e07a9dd78127dfbf09aa8e9adf73308e7807ed389cec187ec25e4484. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302044 — a six-check JSON result.
Lincke: Frau Luna: "Schlösser, die im Monde liegen" (Marie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883b78b64d780b2ac4dfb97c48ae2c66395a150e77345dfeb3b08acd5a7d5afe. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302045 — a six-check JSON result.
Lehár: Eva: "Wär es auch nichts als ein Traum vom Glück" (Eva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86eb816e5b8778816c74103e3d9ac20db10e315d2b24a01a5c734d2a76ccdf93. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302046 — a six-check JSON result.
Strauss I, J & Korngold: Das Lied der Liebe: Flirt-Duett. "Ein kleiner Flirt" (Paulette, Richard)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a342a85cff4cc93b18911dee34f001598d3a0a16fe68260fa2b9ad644c45d9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302047 — a six-check JSON result.
Benatzky & Stolz: Im weißen Rößl: "Mein Liebeslied muss ein Walzer sein" (Doktor Siedler, Ottilie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74eb92b7ea9c01abb881e0f60eb1117ed91728bd849dfcd648ecb1286431bc19. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302049 — a six-check JSON result.
Millöcker & Mackeben: Die Dubarry: " Ich schenk' mein Herz nur dem allein" (Jeanne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c2f251cf723dbc5a1efaf13d9f53dcebb536a91aead16f8974202a14922254. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302050 — a six-check JSON result.
Heuberger: Der Opernball: "Im Chambre séparée" (Henri, Hortense)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b04e4539cfa07ee43bdd30fb5332fbe0eaf1b34244f1411001b2db946fad53. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302051 — a six-check JSON result.
Lopez: Andalousie: "Ça fait tourner la tête" (Dolorès)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec83af7b596b820f94cb4d0aaa2854aca1c9f651d5e5c2f77a806cc7b1f3781d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302052 — a six-check JSON result.
Lehár: Friederike: "Warum hast du mich wachgeküsst?" (Friederike)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1963467d379e72049b53f9cd12bcce2042f568c3ddad46eb3f0eea5c549fd3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302053 — a six-check JSON result.
Strauss II, J: Das Spitzentuch der Königin: "Wo die wilde Rose erblüht" (Königin, König, Irene)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203de50ef386ced9b21d9fb00276c7c5931be643938766aa1f967fd9284eedb0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302054 — a six-check JSON result.
Messager: Monsieur Beaucaire: "Rossignol, tout comme autrefois" (Lady Mary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ddc4ee8847c361383934c1f7d7b106e72802b609ae2b18ae807bf26648579f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302055 — a six-check JSON result.
Lehár: Paganini: "Liebe, du Himmel auf Erden" (Anna Elisa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d52b95fd62e936ebb6d651f85dbd512bd7598376b261cfd9f7c09299287b63. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302056 — a six-check JSON result.
Lehár: Zigeunerliebe: "Hör ich Cymbalklänge" (Ilona)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118fc488d347d7825c662ab2175e62427ffdf367375ac9584f06d222ba53cae4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302057 — a six-check JSON result.
Abraham: Ball im Savoy: "In meinen weißen Armen" (Madeleine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39c892340292ea895dd7d223986d7a1b018759622784f5e57673bb8064e5399. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302058 — a six-check JSON result.
Christiné: Phi-Phi: "Bien chapeautée" (Aspasie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7684bd97003d5b456766c7f9db0ea68458bcb5d68501f84a32d907597834c37c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302059 — a six-check JSON result.
Messager: L'Amour masqué: "J'ai deux amants" (Elle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f04ca682a93842ba4a59a9f060342d7802ca2ef913bd1fa7faf771140b9a56a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302060 — a six-check JSON result.
Straus: Manon: "Ich bin eine Frau, die weiß, was sie will" (Manon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4099f1da7c0ae1f77e3c2d3a2c51d20d8c49d0a4a826accae92a9d56c5191cd5. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302061 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372e0bae5773c63b1bdae88b59c767b6e8f129d3dcbaf9064350d03ace143379. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302275 — a six-check JSON result.
Kálman: Grafin Mariza, Act 1: "Höre ich Zigeunergeigen" (Countess Mariza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dab7e053ca6803d895b69b09021e681d1895f1427bf0a6f4a67555ffbc51707. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302276 — a six-check JSON result.
Künneke: Der Vetter aus Dingsda, Act 1: "Strahlender Mond" (Julia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4df70066f9663924f65b1c91cbd8e0c3d0a684a0bd189ae356c8f85493a271d. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302277 — a six-check JSON result.
Lehár: Giuditta, Act 3: "Meine Lippen sie küssen so heiss" (Annita)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c519503c868859f632967095fe36f4706186b156722e96e8db83fc4584634f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302278 — a six-check JSON result.
Lehár: Die lustige Witwe, Act 3: "Lippen schweigen" (Hanna, Count Danilo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025e1823872faef31aa807bf8abf414fa6a0a4c3454b9cee8d6451f7972536a7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302279 — a six-check JSON result.
Strauss, Johann II: Die Fledermaus, Act 2: "Mein Herr Marquis" (Adele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca0d5ab75ec58a38b7c757904c4d859ed31286bd56ff6436683da54bf211d89. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302280 — a six-check JSON result.
Strauss, Johann II: Die Fledermaus, Act 2: Czárdas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcb5d54ded3a39b53333a6afe8e06cca1f5e72fe5bd16b0c4205c86c717c7e1. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302281 — a six-check JSON result.
Loewe: My fair lady: "Wäre det nich wundaschen" (Eliza Doolittle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe31876e1426e51b301bcc2e91c930aa9759deb37d1b29a55262fcb38a51d886. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302282 — a six-check JSON result.
Loewe: My fair lady: "I could have danced all night" (Eliza Doolittle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1565d88cc0d527ef16dcafbad5fec6460218a3a0bfcfe9af213f17bbda28af8a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302283 — a six-check JSON result.
Stephen / Arr. Steiner: Sweeney Todd: Grünfink und Nachtigall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976171f8c49459f92ee249ea52026dad7286b827306a3766e2881fcd3b292e79. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302284 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7685275d124d5123ffc91ae896d58a6cc9c580bd3c0c0f2d914e51b46929ba. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302285 — a six-check JSON result.
Rogers: South Pacific, Act 1: I'm in love with a wonderful guy (Nellie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ee11504cd85ec441e0d25670969b9e94e7618733283f9d8507487a1ef1e186. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302286 — a six-check JSON result.
Webber: Phantom of the opera, Act 2: "Wishing you were somehow here again" (Christine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b58505ff153cc5786848001d65ff6c64394d307081391d7daed8d1db7850b3b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302287 — a six-check JSON result.
Bernstein: West Side Story, Act 2: "I Feel Pretty"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c07a29dcde54a7177e58865888647da21f5d49d26573ddf63921d249af40c36. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302288 — a six-check JSON result.
Leonard / Arlen:The Wizard of Oz: Over the Rainbow (Dorothy Gale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ccfd88adea1711c0e6a8565b67546e84ce0554989df1c5fcf3c8ea0af683fa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302289 — a six-check JSON result.
Fain: Alice in wonderland: "All in the golden afternoon" (Alice)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68800193911c9736d03a3946340cff5b2cc2ca9fca460c050806b521c2f520f9. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302290 — a six-check JSON result.
Menken: Arielle, die Meerjungfrau: "Ein Mensch zu sein" (Arielle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b32a35b265bada05fb4353c4dba336fa506b224b5037770a88fc9c4e3e5ee51. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302291 — a six-check JSON result.
Churchill: Snow White and the Seven Dwarfs: "Someday my prince will come" (Snow white)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab145a670d8e64f2d69ebaadd8878285f4b52a6eab27ad3382759f99f39afcd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302292 — a six-check JSON result.
Sherman: Mary Poppins: Feed the Birds (Tuppence a Bag)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2311d912467bcaa4c94ea6eb874a4ab4d5a15067422e09fe3a00c2bd5f8bc8ae. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302293 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e35cdb140a5c1a3d705e0c19f332d38d2185751fb616607d04d70f5ba085721. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302294 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e2d24e3db3c68fca15bb56ad7eaa4ab7b48d8ddc644250f7bbdd1e5f58a0af. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1302295 — a six-check JSON result.
Strauss, R: 5 Lieder, Op. 48: No. 4, Winterweihe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bf1fec4385c1cea45ae1e2e22a38d6ea06d5fa05d00fc4eb740fe97c9e9015. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1001233 — a six-check JSON result.
Zelenka: Laudate pueri, ZWV 81: I. Laudate pueri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a8661e561a4be9c08b7c26dd2c96b8b1429615c7d6369fa6bab139285f9c57. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2202286 — a six-check JSON result.
Mozart: Die Zauberflöte, K. 620, Act 2: Queen of the Night Aria. "Der Hölle Rache kocht in meinem Herzen" (Königin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779cb125f2e96bde723bc0111640664bdb7c9fbcddcf921b50271dbf377cf82a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0702332 — a six-check JSON result.