OpenTechnical

OT-2026-000079642

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, supply line pressure sensor, vented after 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-2026-000079642) never changes.

Identity and time

Publication numberOT-2026-000079642 · never reused
Internal UUID01a0ae96-0b92-7877-b7d0-d76d9023ff9f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:44.101434Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079642
StatusPUBLIC

Content hashes

Canonical text2a1fa2fd07be217505ccbf49ad234132561bbb15888b3aacf2c298a72389e02f
Markdown2d9b2c5305bf5ce99b6909138ba973c5228e27576ec77b9d1c549d9792448402
PDF
Publication page0ec7b21cf9ed4d056c07eba904ead50d134089821c42ad8daff7fd1a26f296e4
Manifestf44546d232676f6f0fa24f674fd611bb0a99ba166838071139cdca8c64bdd53a

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
SignaturegPPb9Ndx+pB9a3i4UBZuzmZWPcBX01/9/ycA67nzC5m8/WoJXJ7LtlIBQM+AlREhVJKm6ZE4VftTOMZUeX1CCA==
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

2026-09-17T10:05:18.572295ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079642
observed 0ec7b21cf9ed4d056c07eba904ead50d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:18.555509ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079642/manifest.json
observed f44546d232676f6f0fa24f674fd611bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:18.538683ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079642/publication.md
observed 2d9b2c5305bf5ce99b6909138ba973c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:18.519601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079642/publication.txt
observed 2a1fa2fd07be217505ccbf49ad234132...
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.