OpenTechnical

OT-2026-000053099

Publication integrity record

Three cup vacuum gripper, three zone face, three stage ejector, supply line pressure sensor, pulsed blow-off before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000053099) never changes.

Identity and time

Publication numberOT-2026-000053099 · never reused
Internal UUID01a0ae84-a431-7169-8a4c-59eb7bf33b8c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:38:43.524202Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000053099
StatusPUBLIC

Content hashes

Canonical text2c8a0883963a757e717577222cc69612e2ed877b151709d561cddfbe8be82b2c
Markdown4df2ae95efae4492803b6e9cb261a79bd7992a90b47375dc07345b2fc45e2a69
PDF
Publication page4c7972c6f0a691f093c7e2fe823b3234c3730c5cab5f6007d400d04fb96edbec
Manifest84e3d9f8bca1935aaf3d4c0ab99c5897e353815b94351dd9df5d39910ce5f35e

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignaturemAjkaVoznz1+ZmT8O6SP4GsTecB2sRpt46+CWygvL6ROGK+//tE7E/QETJ2i15qNHv0bnKIS7zWju5+zfIv2Aw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T08:43:59.989923ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053099
observed 4c7972c6f0a691f093c7e2fe823b3234...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:43:59.733336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053099/manifest.json
observed 84e3d9f8bca1935aaf3d4c0ab99c5897...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:43:59.489780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053099/publication.md
observed 4df2ae95efae4492803b6e9cb261a79b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T08:43:59.237583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053099/publication.txt
observed 2c8a0883963a757e717577222cc69612...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.