OpenTechnical

OT-2026-000075731

Publication integrity record

Two cup vacuum gripper, two zone face, pump fed, pressure sensor per zone, 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-2026-000075731) never changes.

Identity and time

Publication numberOT-2026-000075731 · never reused
Internal UUID01a0ae94-29fe-7de3-8f1f-eeafc63545bb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075731
StatusPUBLIC

Content hashes

Canonical text0e0a2364c2e3e3dfcf091a1da9ca8f87a2a472070e422a5052a141e1ec2195d8
Markdown78cc5a27dd1b67febd37706fc8f34d2bf5ae3ced59438b74b16ce9dfa19d102e
PDF
Publication pagee471e3e64968f404fcb766621f15ab84743295892cc6fcf87f7557527b7a05de
Manifest82c11490b40eb27ee63243d59b93fc89481651af8d89609d4f27f39f7f185d44

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
SignatureksIC5vfXZ+PcFbsa79lfsc3NhAfwc3Pn5qKtFtY8ad4Fj67kloXxmRnVy6lMesdm5IsJ/Q/qixAoax4L4YjXCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:14:01.298733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075731
observed e471e3e64968f404fcb766621f15ab84...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:01.279739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075731/manifest.json
observed 82c11490b40eb27ee63243d59b93fc89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:01.258805ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075731/publication.md
observed 78cc5a27dd1b67febd37706fc8f34d2b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:01.239582ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075731/publication.txt
observed 0e0a2364c2e3e3dfcf091a1da9ca8f87...
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.