OpenTechnical

OT-2026-000005884

Publication integrity record

Porous face vacuum gripper, four zone face, common isolation valve, three stage ejector, contact triggered

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-2026-000005884) never changes.

Identity and time

Publication numberOT-2026-000005884 · never reused
Internal UUID01a0a948-1269-7c88-8340-96ff4278e19d · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:14:27.948229Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005884
StatusPUBLIC

Content hashes

Canonical text62bee1eda1959b6cff5bb8076476cc00e31784d6f2d04eba5ae6fa975a08f864
Markdown8d95aec260252c746c7993b54d2b2b3f83cec17761a72ab2e691f670377b2d5d
PDF
Publication page18681533823b22acdb6e8a4035f6f77050361d3c0c59886d7dcb74208abcf123
Manifest81f4bec3dddd2835ae38a4c24491e0f3fdbad874afa2b1e6d61bd5582f08258b

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
SignatureeE5snIDPnmbKWRP7jzr0T55ZME5lp+9U8MWuGg72FWb9a6TSK5109a4nmwHpapuLCgTUgVXuS3DNZ130etBDBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:21.723307ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005884
observed 18681533823b22acdb6e8a4035f6f770...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:21.707793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005884/manifest.json
observed 81f4bec3dddd2835ae38a4c24491e0f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:21.690961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005884/publication.md
observed 8d95aec260252c746c7993b54d2b2b3f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:21.677906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005884/publication.txt
observed 62bee1eda1959b6cff5bb8076476cc00...
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.