thumb|Oliviero De Fabritiis (photo with 1950 dedication) Oliviero De Fabritiis (13 June 190212 August 1982) was an Italian conductor and composer. Oliviero De Fabritiis was born in Rome, where he stu
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 0xffd559347a40caf9691d7585cce6282289f7ad3a37e103e97900cc3554f0d66a. 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/3e78747d-9944-4180-82de-a37d8c8393a7.json and https://artists.proofprofile.net/proofs/artist/3e78747d-9944-4180-82de-a37d8c8393a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x8d8d5cd1f7e4e414a884d851f5b5173fac8680a9581b7839f73b259633c344fd. 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/GBF077900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ab3ff06f290af3aeefab3227bb09a168f67ae128eea8941f095f41c3e9d3e4. 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/GBF077900060.
Adriana Lecouvreur / Act 1: "La dolcissima effigie sorridente"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89845f58cae175a008a4e03d156ddb5b9ed50a82a1e7a89ef939f95692b57699. 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/GBF077900080.
Werther: "Pourquoi me réveiller, ô souffle du printemps?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223ea384539218e731f5182308e51aa5bc254fda1b1218cccce130fc590783c5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBF077900120.
Andrea Chénier / Act 4: "Come un bel dì di maggio"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee4d48750a965bc11d3301ce0276c5a7c415565205e7fd0763b3b5809aa3a67. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBF077900140.
Andrea Chénier / Act 3: "Sì, fui soldato .. Passa la vita mia"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cb6779f960b1830967bf4c26c8e8b7c4e9391035fe1a286a34b8fab81c514b. 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/GBF077900150.
Aida: Act III: Pur ti riveggo, mia dolce Aida (Radames, Aida)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256dc81d65ca0f02ef29f7163412b33c106916b1065cd937db062a6e9ddf60f6. 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/USB8U1502714.
Donizetti: Lucia di Lammermoor (Live Recordings 1957)
VERDI: LA FORZA DEL DESTINO, (Selection), Pedro Lavirgen, Oliviero de Fabritis
Don Giovanni, K. 527: In quali eccessi....... Mi tradi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035110940b57987fbd6ce3c5ffc5914dd718bc94fd9b93d798747cfd21371758. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/QMDA71433139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6fc757399fad7fb3c0adeb677f9980a075466a7d68af7c71b54b50e6064396. 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/QMDA71433140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf876a4603e7c3e617a10200c3b82c0ae12f69e8e5e017dcff5072e11c20e75d7. 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/QMDA71433141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a1d36d017e7c850af96fd130a91cd4b1b583b1902f37aa33049556d9764e90. 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/QMDA71433142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78da084e543676bf38313379d0880b20d34668a0b14a190dfbbbb001db71588. 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/QMDA71433143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca895b426eae69c0a171a7f8af768a55e5f69eb8024c43cfbf405b57c0f39af5. 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/QMDA71433146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6165e9d0e4ed40c47eb1b46c7be497d72ad8fa723a4aa1d46029ea9a987449a2. 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/QMDA71433147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b00d15e1e12dc2c9715d00e925761e0a319defac582639583f4326b91fd951. 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/QMDA71433148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822e3322007209464143fb0137127a4c436f8ed326b7057edc23f9fae32107c2. 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/QMDA71433153.
Giuseppe Verdi : Il Trovatore (Berlin 1961)
Rigoletto, Act I: Gualtier Malde … Caro nome
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe42309c725c6b7810b2c82503afc7f98d68d3d022a033e4b19684295096c3cd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEAD61001201.
Madame Butterfly, 1. Akt: Vogliatemi bene (Mona Lisa): Madama Butterfly, Act II: Un bel di, vedremo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91d516ce713bf4d198d76b26647a4a6c4a967e1cf101a78e42e1f5563fb43c0. 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/DEAD61001202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ae48b6eab287b60ed09e994790f36fa9e13ec91ecb38785bc7ec5fda021470. 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/DEAD61001203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101ff5c47ac7b7c13f18e845d268454d3bec339d704b1d34001a778c9c3fcd0f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEAD61001204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6861772d13502c587203541639e8b5847b6d7c3922c39e379bf73a7badc65cbc. 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/DEAD61001205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0e7b859fbb136db83cbb925fe0e8da30fabfb75b080ee895edebadfcf36260. 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/DEAD61001206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc733655d562ad1e3bcd7bd39f068726b542dbd1cf8b51c2c176c933a633fe255. 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/DEAD61001207.
La Wally, Act I: Ebben? Ne andro lontana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698524313f107933ad6b8602296df9c2b4413e8f84de368a932f896c27dc2a20. 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/DEAD61001208.
Lucia di Lammermoor, Act III: Il dolce suono mi colpi, "Mad Scene"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435700a867224ca918ffe8741cfe9f7b83309d39dcd741e48fa96387169e7108. 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/DEAD61001209.
Parsifal, Act II: Grausamer! Fuhlst du im Herzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58421870358bf612b3f16e1b881d5e001d5167d862bd309f084e771a02ce2996. 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/DEAD61001210.
Tristan und Isolde, Act III: Dolce e calmo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175afda8270e304c0066f00b138b69a4f1347269cea70ccfa641e79e017d73f1. 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/DEAD61001211.
Puccini: Madama Butterfly (Gigli, Dal Monte) (1939)
Opera Arias: Gigli, Beniamino - Gounod, C.-F. / Giordano, U. / Blanc, G. / Massenet, J. / Verdi, G. (Rare and Unpublished Recordings) (1934-1949)
Holzbauer: Günther von Schwarzburg (Recorded 1960)
Holzbauer: Günther von Schwarzburg (1960)
Verdi: Il Trovatore (Live at Teatro Colón, 1969) [Restauración 2024]
Verdi: Il trovatore (Excerpts) [Remastered 2022] [Live]
Rossini: L'italiana in Algeri (Excerpts)
The Complete Italian Radio Recordings (Live)
Il mito dell'opera: Flaviano Labò & Magda Olivero
Franco Corelli: Power and Beauty, Vol. 4 (1961)
Giordano: Andrea Chenier (Gigli, Caniglia) (1931)
Manon Lescaut, Act I: Donna non vidi mai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb69bbe5e171a142e14d2d8585c39b0923e9d4c914dcff09493bc592f9b4517. 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/GBF077900180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223ea384539218e731f5182308e51aa5bc254fda1b1218cccce130fc590783c5. 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/GBF077900120.
La fanciulla del West, Act III: Ch'ella mi creda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8712bb1c0f1c76201291e0ab4a05022a201801f4a9281f7734595e197377c6. 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/GBF077900160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8d5cd1f7e4e414a884d851f5b5173fac8680a9581b7839f73b259633c344fd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBF077900050.
L'Africaine / Act 4: "Mi batte il cor... O Paradiso!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef48bb0d317bca2b340550d101692a551718165d93057532684b1e452c95df5c. 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/GBF077900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb69bbe5e171a142e14d2d8585c39b0923e9d4c914dcff09493bc592f9b4517. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBF077900180.
La Fanciulla del West / Act 3: "Ch'ella mi creda libero e lontano"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a05e824d56ed35ea05ef75c3da6ee72a2ce1c1fb2eee9ddb2124ace5afe6ed1. 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/GBF071400960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b18fe07205cc4840cf4e0241a0ab481ea956a0baafb87372e093403e419a8e0. 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/GBF071400970.
L'Africaine / Act 4: "Mi batte il cor...O Paradiso!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250ae9dc1616c5828fa9ba91859dfdb1a1fc3e537303628965a58c6c54751414. 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/GBF071400980.
Best of Opera - Die 50 größten Opern-Arien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab155c1ae6c7bf02d79a0aefc24387a0ca978fbe1e9a0d7953b452c16628abf7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBF076410940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbae0226d8f41a64ff7e36dbfe0697e577d2bb695151cf0ba9ee6f6e7e1b03b8. 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/USBC19704782.