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 0x31c44a9ca3cd6cc37dc840b8c16bdb350bcb8a40e8b54f299b8bc81804ff6453. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6270d61-126e-4fd4-99b0-badbc1da17f1.json and https://artists.proofprofile.net/proofs/artist/a6270d61-126e-4fd4-99b0-badbc1da17f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Der Schauspieldirektor, K.486: Ouvertüre
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 0x441272a6032c45ec16135da8fc8874fee8875856ae0974458655b4dbeeecd049. 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/GBF079010091.
Der Schauspieldirektor, K.486: Da schlägt die Abschiedsstunde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4aa6e863c838ceac3e1e57995a3c252397fd0f707206122ad28bde8c147a5c. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079010092.
Der Schauspieldirektor, K.486: Bester Jüngling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dce1080379639fe87a4f39aa9b8435aebed933a46ecb6247726da02321fcc0. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079010093.
Der Schauspieldirektor, K.486: Ich bin die erste Sängerin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3daf1a29578196855d3dccd52d87c844338f111fa5ae97ba66a649a32d0daf. 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/GBF079010094.
Der Schauspieldirektor, K.486: Jeder Künstler strebt nach Ehre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cac6726e850a99d0593e420b103f4292ad0cdacd74e46c592463c1a9724b8c. 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/GBF079010095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d178fd9940290f4b6f337c4c1352346d1accf48f5f0dd8bdef82a4ea983272. 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/GBF078010790.
L'Anima del Filosofo (Orfeo ed Euridice), Hob: XXVIII:13 / Act 3: La giustizia...Dove mi guidi...La giustizia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac38b8ce254ecdf6e4fea2266bc12e3b9eaa8560a5458bbfccccdf815742f5ef. 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/GBF079640435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfb6f96e378014e0263a408810416b962ed06823cfdade9ec3b9a1458f0b731. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079440401.
La clemenza di Tito / Act 1: "Ma che? sempre l'istesso"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67fc40a122b012b10b37c71b72fb65ae4a292617bf3a3e9104513e8e95f185d. 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/GBF079440402.
La clemenza di Tito / Act 2: "Torna di Tito a lato"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0874c40b575216726d7d0b9a23d15eae556945be31cee8d1e27fac395fa04326. 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/GBF079440427.
La clemenza di Tito / Act 1: "Amico, il passo affretta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd731d9caaf0d2404a7add66fa16b629073d42b8b355b19e1671521467d5d4581. 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/GBF079440404.
La clemenza di Tito / Act 1: "Deh se piacer mi vuol"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f18931ee408c6954de9798f9b239f6dfa9e00a5305b864722cf4502d3ce63cd. 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/GBF079440405.
La clemenza di Tito / Act 2: "Se al volto mai ti senti"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45dfebc62ca8acf9111ee793e4a76d6cd0d7710bcf053a68d40ba4f590854bf. 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/GBF079440430.
La clemenza di Tito / Act 2: "Ah grazie si rendano"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4999104fa62c295f0f109e6456ebc02646019e35d1c2c754da655772d0f7292. 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/GBF079440431.
La clemenza di Tito / Act 1: "Deh prendi un dolce amplesso"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c68e45ecacc6f32b11714efa0b1c4ebbc1487d0a41b6ca93b3369e47a068e6. 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/GBF079440407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eda307b1edf415e46cddde11b0371b2f7efe49e7d3451a83ec2e80430beaace. 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/GBF079440408.
La clemenza di Tito / Act 1: "Serbate, oh Dei custodi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8ed3f75af26332e2ccd339787c7b189d3f4c10fcb70783108059de9709d434. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079440409.
La clemenza di Tito / Act 1: Tu della patria il Padre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb8790fb04bc7593bfe7a2df172728c5a6ec258e2e691d23be95228928563fb. 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/GBF079440410.
La clemenza di Tito / Act 2: "Tu fosti tradito"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216a4f9ce1cb77583cc8f14458743d69fd54fd838b4c2cf274fe68625cf46d33. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079440435.
La clemenza di Tito / Act 1: Marcia (II)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa2f70d1f302d057437117c907a319b8f1e0caedee7500e4dab45d848c9cc90. 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/GBF079440411.
La clemenza di Tito / Act 1: "Del più sublime soglio"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404a0253ba1c19e03bce1310d50cc34784136451397d4a74e530eeb126088669. 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/GBF079440413.
La clemenza di Tito / Act 1: "Non ci pentiam"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1644a0630e6e66352dc7984cc436bbe3a659371f7ea163ddf6a7a79a1107bbb3. 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/GBF079440414.
La clemenza di Tito / Act 1: "Ah perdona al primo affetto"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13982283440e2593f9049f2d131eed1064f94efc3f83ffa9645bf0b17c88e65. 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/GBF079440415.
La clemenza di Tito / Act 2: "Deh per questo istante solo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d1217792923f83d540a294371692f0f16e7aa76d93dacf8bdfc60d9f11ffb4. 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/GBF079440440.
La clemenza di Tito / Act 1: Che mi rechi in quel foglio?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15305cce5f203b3a8f34b2bf33372f6451e07763d088324715f69331963d1e1. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079440416.
La clemenza di Tito / Act 1: Di Tito al piè
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49717c4dd0b162d1872ddbb46496899c59e0cea6f7b259810efa3146535aa72b. 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/GBF079440417.
La clemenza di Tito / Act 1: "Ah, se fosse intorno al trono"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44de2037f4f96ce6004ce20fee297e30a78adb87a46a31d79df952184b1e5e4d. 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/GBF079440418.
La clemenza di Tito / Act 1: "Parto, ma tu ben mio"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3f8b1d53193dd0db368c76e597ea295cb571c9ce9c79ddf04fe5d7d8244077. 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/GBF079440421.
La clemenza di Tito / Act 2: "S'altro che lagrime"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5e22d8242b7e57f7a8b1eb4f00979f28159673ee07b4eb894dfd4a58084bed. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079440446.
La clemenza di Tito / Act 1: "Vengo... aspettate... Sesto!..."
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c823d81a81e2faff6d5e002cf6dce99cf49576000df1c4499b5e6f6c78fd87. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBF079440423.
La clemenza di Tito / Act 2: "Non più di fiori"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb1129cafd1175af17d5341a0bd42faac3f1b13b94b16a3c545b686128f0498. 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/GBF079440448.
La clemenza di Tito / Act 1: "Oh Dei, che smania è questa"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4bfb4a80ad18bca97deff6489d36532f4cb056e2ea7d14f6e8e1349567b7e4. 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/GBF079440424.
La clemenza di Tito / Act 2: "Che del ciel, che degli Dei"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48e661057e129a25a00457007458748e6e7ca34f8ef8883c75eac56daa962bc. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/GBF079440449.
La clemenza di Tito / Act 1: Dei conservate, oh Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe938b23a277975b4ebcb2436afc22014eb393ea1a67a31d55429c8e561b10010. 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/GBF079440425.
Requiem in D Minor, K. 626: VIII. Lacrimosa
J'aime pas le classique mais ca j'aime bien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965290178e36a53f75338e74a6b5a649b651b1d446c6091f5e2b9fe919b1a35c. 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/USBC19100373.
Wagner: Tristan und Isolde, Act 1: "Westwärts schweift der Blick" (Isolde, Brangäne, A young sailor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5682dc0a00d35b03faed0cc91259b44a0dd370c93624df256bbcfc165319139d. 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/DEA809428602.
Missa brevis in C Major, K. 220 "Spatzenmesse": II. Gloria
Mozart "Spatzenmesse" Missa brevis in C-Dur, KV 220
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058036ce7383a14aa90f8aed227213ef74fc8ffcf1e28aafde878be5f3d7d06d. 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/DEA809450202.
Wagner: Tristan und Isolde, Act 1: "Frisch weht der Wind" (A young sailor, Isolde, Brangäne, Kurwenal, Tristan, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbad50ab455d42161200c12c5094d393b06937b5e76e6e0442c9a5a7ed8cbb95. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809428603.
Missa brevis in C Major, K. 220 "Spatzenmesse": III. Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07c0547dd59c3acb4d418426b88516434b4579d171b6526aa9df632397eed16. 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/DEA809450203.
Missa brevis in C Major, K. 220 "Spatzenmesse": V. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72fba1ac43522f46c3344a132b7170c404e20a6af7df6e7a2d7bd14262cdebe. 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/DEA809450205.
Missa brevis in C Major, K. 220 "Spatzenmesse": VI. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a56a758f5fa29f8c69a3cfd31e2b3d0c7d360f43d98a364cf807f7315631c46. 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/DEA809450206.
Ich mag keine Klassik, aber das gefällt mir!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965290178e36a53f75338e74a6b5a649b651b1d446c6091f5e2b9fe919b1a35c. 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/USBC19100373.
Les Plus Grands Airs De La Musique Classique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965290178e36a53f75338e74a6b5a649b651b1d446c6091f5e2b9fe919b1a35c. 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/USBC19100373.
Mozart: Complete Edition Box 10: Missae, Requiem etc
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd391758c6650e6ffcec7a9ea925fc9e77dd46437fbcff0c2824d49496bfbb5d3. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508802507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afd885b35dd3e1009416645eb1377efa474db20c744326fa03c0df8f426303b. 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/NLA508802509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b405f3b84d4800d2f5b9eeed96728a1f10ef8504f0a37a64674ae658a476d5. 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/NLA508802511.