OpenTechnical

OT-2026-000053002

Publication integrity record

Foam pad vacuum gripper, common isolation valve, single stage ejector, vented before set-down

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-2026-000053002) never changes.

Identity and time

Publication numberOT-2026-000053002 · never reused
Internal UUID01a0ae84-a430-7b0f-b955-376a757140ff · 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-2026-000053002
StatusPUBLIC

Content hashes

Canonical text1e2751fbaab2ff2526c09f62104f47f835fe202cd2cbdd9997be79ded9ccded6
Markdownd45402065503dbed11ab7addbc31adc8f52ba68891c1ba9de1c5df5c1c5a36b1
PDF
Publication page20d3c818a1d3d70e6add3a9c6cf63550ee3c40476de1278b2488328f4f7518af
Manifestc5e4dadc388b92fff979f0eb42bb6a5d06fb039cc345b1ffa5b9b39eb2860126

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
SignatureAiAp5ywXVvuKVal0MMyYeJnFYKt2B35PBW5VAnbL9zWY+UkcdlHf87M9Cxc0iJsMqVIkGPg5yjB++nMOSfq4DQ==
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

2026-09-17T10:56:41.905456ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053002
observed 20d3c818a1d3d70e6add3a9c6cf63550...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:56:41.888741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053002/manifest.json
observed c5e4dadc388b92fff979f0eb42bb6a5d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:56:41.871087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053002/publication.md
observed d45402065503dbed11ab7addbc31adc8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:56:41.854104ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053002/publication.txt
observed 1e2751fbaab2ff2526c09f62104f47f8...
fetched by instance-3.rotem.ai from 34.69.0.72, 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.