OpenTechnical

OT-2026-000078096

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, 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-2026-000078096) never changes.

Identity and time

Publication numberOT-2026-000078096 · never reused
Internal UUID01a0ae95-6e8c-7044-8a3c-8bd022e96e95 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:03.897850Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078096
StatusPUBLIC

Content hashes

Canonical text9ec84067c9456af18d42f90282fcbeffd5a7861f42dd9b3251f8492a163ddf0e
Markdowna615f285885caac8173412de9c949db0464f0ed0a6b137ca9e83953d030b5524
PDF
Publication page947aab92f9dbec59ef6ca6c1b0e5b9accd6a3d1d89f31b2ca2e948ccd6c6dbc2
Manifestd8c7b12e4290853dc213687fbffed165588852d25183edd4a4264f68a4fee5e8

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
Signature/lkSrBqwwHjcjFpmcjxckIsvM1Hmi/Xp7IajCQTFCih5X+XP3P+mexvKs2SwFxgdXiTwqAaAqsWwEivDUxm4BA==
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

2026-09-17T10:06:43.432888ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078096
observed 947aab92f9dbec59ef6ca6c1b0e5b9ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:43.416089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078096/manifest.json
observed d8c7b12e4290853dc213687fbffed165...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:43.392560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078096/publication.md
observed a615f285885caac8173412de9c949db0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:43.368172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078096/publication.txt
observed 9ec84067c9456af18d42f90282fcbeff...
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.