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 0xf74add2f3c5ff16268df63532f826d934b50496b06cac7195079ffa1cb7f0a45. 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/7240f77c-bc04-4c89-8bbe-08c621f1ca76.json and https://artists.proofprofile.net/proofs/artist/7240f77c-bc04-4c89-8bbe-08c621f1ca76.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 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 0x830749f74ffe7f4284f2c6c23d049960d3d2b8a596aaae05b967e0ea493fb3dc. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/QMFME1530042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f1ab9ad4bf6912be052bb14b66999ae9bca0785546419131ea666e2943e611. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QMFME1530043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8770e334d4217fe45f098eb9006323b1c44055856d6c6266dfd95852ad57ca. 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/QMFME1530044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b356c95f5f390860f99f6ed86a07b07efaac58ab25a7555878c2f026ba0b70. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMFME1530045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281c086b323870cdabd0f0ab01fee41970c771ce452b68a26db221e63204e9b5. 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/QMFME1528413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07eca12a910209087e2ac70d61e6736ef5b2dc817003761f0d64eb646a9b26e8. 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/QMFME1528414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5a1deea7f4d1b064dc804e340385e21c5be6643057e13102710251b67e45d2. 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/QMFME1528415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42504b3545b131ed27509e99f294d921defaa4a11bbdd0f5f841697b050ce6ba. 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/QMFME1528416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f0629f5e43d7122b97176378a9cd5454a321fee9696b2003fc05dcc1438dce. 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/QMFME1528322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ea7b9d0b4df5a6d07055150176641511c01b383558cdf96fa62ce910965a56. 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/QMFME1528323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00d7fafc424e517a6b9a370ab0852bc54a9e8c6383f06a9de82b3c3dfdb4437. 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/QMFME1528324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319d06b439cc2a0fd59013b32e7b504576e73686f4be27f2879f1d750f571348. 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/QMFME1528325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c428e5851578a6c6db45f68d4b2c41cf3b71f9e2980ce768fd5fdf7caa1ee40. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMFME1528160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747bcc8f740c545fcb77daa783f6f3501f5ea79f0a19bb0913d791aa9e971bb7. 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/QMFME1528161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb799897e1e598c270cbfab0ee028800772939c06d655cb1a096d0391facf6505. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QMFME1528162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d85f862f035cfe54494236e7f20cc8fce34c4454be23811478f41162ef2b94. 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/QZMEP2522627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202bb9d44ea4911de4c1576ebd9c1870ee06f451aa91a0a27bd9b930ac222700. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZK6Q2442304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3538dc5da8a3ceb8411970ab3b8c0a3fdc52c901ab39082edb25701c35c3b3. 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/QZK6Q2442157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190f967baf480fb490d15fea1765f7e258d60cd8a74fa27ca00203c6792e38cb. 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/QZHNC2427726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b316ffdbef7d4fe70ce4b7e639a24c1a450057ec4640d7b72b60c9403ef0937. 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/QZHNC2435771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124239af7c96980ba775ac5656413018aeb1ed8dfd42b847317edb0c18ad7a47. 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/QZHNC2435592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d6e8b0105493343aad0f7f049869fc3f98c5fd7699aeace2e2159dd3170902. 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/QZHNC2429793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9f20e0ffc6daf60271e1427d75e71c83a88d5bd8eb140f2351f1579e34b575. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZHNA2419497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c29fbe359a85a19b444f153b52ee341d591070f15c51e6039aea320511b0855. 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/QZHNA2419499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698c8598116de0dbc90c60c4ec0768e40c587103d972c6cd9acd92d84932b606. 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/QZDA52466007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e4894d4f191163bd9873e6f1d2aaef7e9fd79dae699dabf18a5707094d5cd0. 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/QZDA52467660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94f2478cbc4352b71da1b98b17f7d9df28374d07e41c94606144513a50defe5. 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/QZDA52466894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d7e160f1c0140986f25403bc822481cf184649f4f68b3c3657ffc443f62c1f. 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/QZDA52467659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0561a3da5002751d1891fa6e1bb67b6ae4682711784dc8c0c1a3db6b298e564. 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/QZDA52466892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9330d9da8345f374c53dee6ae05804a6e253397d9adec21d0995f90285c01dc. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZDA52466891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a437e7941fead5da922de4d9e6ae3a3ff6fa6790dd22aa2665a5fefd1cb6d8. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZDA52466012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5725cf56806e77a71a131c59fadbbaad3e3e771f9ae9c480935cd1507954a5. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/QZDA52466001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05e8c4019b2cc431c4fc84e9a4ac78c977a925427397b7593d39539ea7aaa26. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA52466006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ac2ef13d4a01942c8ce3b5eb583d24271727751b08c02d8511a6bf71055daa. 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/QZDA52466003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5c28ca566339bb2b93fb51538c6b4dbd1cb143f5f5b1dc9285166faa8707ae. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA52465999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdf0fcc0ced4e7c9f00a0cd9683a3d96f8962d6d5807f0797c0fcfd08948352. 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/QZDA52466000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c97006ff4143f6c5d8659296d951db68a0ca6cf5f5b9c09653f2ef2230aee3. 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/QZDA52465998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5b26beb73877115aa7cf17c93b7e679ebf0ea23764dbdc4177f26dd2508cbf. 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/QZDA52466002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049ccf3daffd07d853d5a2fcbf3458acf8ee8854d7eadf95e6adc4dcb60fbfe6. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZWFP2389514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c284d0d95cd178d483acaea94a4a83f71a501ed3f909b0482a25621a1c7e39. 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/QZWFP2388455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5d4ee9956cedd2f0d1027dcfce67f99e80fa99c4f4ace166d2113f73f2443a. 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/QZWFN2348277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c55fe12c7a181e60b1211266313136a9d65d01cd939abffe31652eaaddca7ad. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZWFN2349638.