OpenTechnical

OT-2026-000056171

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000056171) never changes.

Identity and time

Publication numberOT-2026-000056171 · never reused
Internal UUID01a0ae87-0a4c-74ac-b49a-f4779d1398d9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056171
StatusPUBLIC

Content hashes

Canonical text417f19c90b9cd7aef81aef70a7001cdf5e2a87d8191b974c9807833310bd7d5d
Markdowne283cf09708be52049bf777a14744a24d079113ed27ea669c7f4fa1f59733efa
PDF
Publication page3592353571ee5f17d5e21ac1736dbd0fbde52b43de708d8a74d23219963ce09d
Manifeste43ab80f02f255d5060ac40e12458ce38090597e8e493dc097485be0a66f4852

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
SignaturevaqeD3cRXjxQG7y3eXcs2BO0WFaU8mk1U9qgN0XQ8KveJE+J6ZJ5VGC6WoXCTZiMwrAaXE3cHeMxS4E46xIFCA==
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

2026-09-17T10:51:43.865308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056171
observed 3592353571ee5f17d5e21ac1736dbd0f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:43.847639ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056171/manifest.json
observed e43ab80f02f255d5060ac40e12458ce3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:43.828558ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056171/publication.md
observed e283cf09708be52049bf777a14744a24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:43.809882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056171/publication.txt
observed 417f19c90b9cd7aef81aef70a7001cdf...
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.