Margaret Marian McPartland OBE ( Turner;Hasson, Claire, . PhD Thesis. Retrieved 12 August 2008. 20 March 1918 – 20 August 2013), was an English and American jazz pianist, composer, and writer. She was
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 0x09a086d593f33d6e6ae3ded5112b7f8d990d769ebfc262dfa68cbfc968d8d433. 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/dcfd1f7d-434b-46ad-a038-44a0b44d3150.json and https://artists.proofprofile.net/proofs/artist/dcfd1f7d-434b-46ad-a038-44a0b44d3150.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 0xcdf00833c5213b24f91abc221fae88195f85bff57d7e4e7c82e776902874eebb. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USSJ10700721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a5538ab4717ebc63d93570516b82c1d685f567c770d66ff24ff762a5bf959c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:55:17Z), 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/USSJ10700722.
Marian McPartland Plays the Music of Leonard Bernstein
Plays Music of Leonard Bernstein (Remastered Edition)
Marian McPartland Plays Leonard Bernstein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dd9421cd42c7c634ceec280bd72e822eb6b566ae0f59508cffa4f9b2195850. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T14:05:07Z), 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/USTR80300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3004cce8f1eba73fd5b74d71e621c464bbbeaf25fb2b3e1d9375179e703b7a48. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:27:54Z), 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/GBBGL7200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb711db4dc57e02201cbc72b6053eb87c706517cf94f7284eb8c55d573abaa126. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBBGL7200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb755013928c067e1624b8e12ed04369bba8da05c65a21b7ffa68875ad622f445. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T06:54:31Z), 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/GBBGL7200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3096546d9547a1cf8df047961e157e8fed41dbe5299377a700a6da000cffd7b1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBBGL7200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4912bb912571c4aee0b9371dd98941285239fd6c8d8e58d802e85843af923e77. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBGL7200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed1b96ff01827875f3341af33fb837f984498005513483d3e4aad9ceeafee3b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GBBGL7200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e35eb8013df0d17eae2c80a21ea2c688623f50a3a37adf4cf25cea10cc0546. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:41:25Z), 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/GBBGL7200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11d200ed00303e7406785687ec70911d29371f1c0aabaccf7a6fe98a17a4c68. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:24:33Z), 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/GBBGL7200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab26a348da4a15734826c60d3b57c4c5e937994a43d206499f2736ec4a0b71d. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:49:33Z), 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/USC4R0303255.
Marian McPartland's Piano Jazz Radio Broadcast
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78aebba3bb1c0ca20c48feb0b741b6c2f75564f973dedbfbae0ecad9902daf5f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USC4R0513109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83d960eb402d7436344f258272f966c5baf01e9c56e082fcb794fb0cafb07b5. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:37:07Z), 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/USC4R0303559.
The Single Petal Of A Rose: The Essence Of Duke Ellington (Live From Maybeck Studio For Performing Arts In Berkeley, CA/2000)
The Single Petal Of A Rose: The Essence Of Duke Ellington
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2024641ef11959e3084bf5b5169934a8a93b4c4ebf5bcad95224da0c239eccb. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USSJ10000576.
Ain't Misbehavin': Live At The Jazz Showcase (Live At Joe Segal's Jazz Showcase, Chicago, IL / December 22-24, 2000)
Marian McPartland's Jazz Radio Broardcast (With Special Guest Chick Corea)
Marian McPartland's Piano Jazz Radio Broadcast (With Special Guest Rosemary Clooney)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0721445aa62dcbd568aab59b18b2da65258f4a52b975434a05a8caa50d878aae. 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/USC4R0512770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f1c8f400a243745daf36f364984f8846da48506737c5179bd7f9740c36e014. 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/USC4R0512786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef3610b6d7bdb7b7c2c9518cfb7df3fa707a2e91581f6291fb4ba14624ed949. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:55:35Z), 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/USSJ10200545.
Marian McPartland's Piano Jazz Radio Broadcast (With Special Guest Elvis Costello)
Marian McPartland's Piano Jazz With Guest John Medeski
Marian McPartland's Piano Jazz with guest John Medeski
Marian McPartland's Piano Jazz with Brad Mehldau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435835a0a4b0603c22ca1ee3c2163753f7f9b20c97abf349db30dcf2302714b0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USC4R0715901.
Reader's Digest Music: Marian Mcpartland: Jazz Piano: The 1976 Reader's Digest Session
Marian McPartland Plays The Music Of Leonard Bernstein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385798748085b76917029bd9711f91b2afbe5d5d5be88d4e1750984c1128e46c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEPI81502791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd707d639dbda8d77619397b66b259099e25674e0b74f17fe7d8ead6b373643. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEPI81502796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e55f19fe65112c8ba84cb5af0dcc7a737926089c84ee2a01988eab866b6485b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEU470005084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd2e2f5c7294cb7e7520c6d13897b0be6c541e0a03a9fd295276f8275c721bc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU470005089.
Milestones of Jazz Legends: Piano Divas, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbe7132bd2d7eafdb5d0a1c4653d7488dec35d2b1a5e13e36100a09348cebba. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USY252421824.
Marian McPartland's Piano Jazz Radio Broadcast With Steely Dan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f767a7fb50906955fb68801b77dde087d8dde2e47724f11d26f1f2c2e30c1e1. 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/USC4R0506254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10d65a50aff143b59736f253f813bf55e838ef6e51ab99e7a4441544d3686f2. 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/USC4R0506255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011d43f0255943fb32772296c9465a734e25f359f441427f16432ddbfd435f64. 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/USC4R0506256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233fcd2412b404d370348db5667c434ced789b241afbb7ca4504ad29f6b1e89a. 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/USC4R0506257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a641df1c7cf2a5af21dea9874c000df859d52bc70192474624943b2866ecf0e. 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/USC4R0506258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a50cdbac44d89b909655ca348486136fdef2ce5cb419dd4e7471c37eef72d5. 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/USC4R0506259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1208f6a5989aa6ec707de3c2d47135ee880c81e35ab2bc67b0be4a97ebf31d. 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/USC4R0506260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58e6342a514d48c1b64c91bca4dff4298a5bb5462b27a6d5a4caf1ae90942bb. 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/USC4R0506261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3354fd23d0b15c0c66db5ca84383353142fd47cc1ca0b019b8beee38002e6b4b. 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/USC4R0506262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b3eb74e273c852baa22ad57a56f6f556bc78c94b8142e651c0c7384a85f2cf. 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/USC4R0506263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49f95415c65bc5accf9f6e9ec2af0651879dcc9f2568284ca0e7672f6710df5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:58:33Z), 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/USC4R0506264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c97e3efaaede4866bf5adc73d7f233a926f6d78291e4e0126ef6687ac83fda. 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/USC4R0506265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c2046b007cf4efcd59929db9997755204fcfe894cb32eb42956b7c86023321. 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/USC4R0506266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b82636003aaba528c9ba2a6bdff7e7659cd9a114bc9fb7faee34082187e7c5c. 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/USC4R0506267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ab7fecdb6db52918142b48443514338da75e414aa4d6bc339aafc470921a6a. 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/USC4R0506268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5b22c69792f2543fce15079df049f21ec66a637e291d6780ba8bc23d9776ea. 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/USC4R0506269.