OpenTechnical

OT-2026-000022671

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, 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-2026-000022671) never changes.

Identity and time

Publication numberOT-2026-000022671 · never reused
Internal UUID01a0ae70-46e9-7168-b5d6-ad83c07755c4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022671
StatusPUBLIC

Content hashes

Canonical texte7f5aa9993f4310d224789a7709548de57cf0248e530451d8d90ee63ecca6ecf
Markdown8a7c714ddcb00fe4dbe66bec82b2fa1b8c496ce71d280e42d3f461e1a6c852d6
PDF
Publication page728c983a3ef4f5623e44e10509d723881b4b71c3d074f4080934d3343e7957dd
Manifestc8dab275d5e44c12d3e784f0a4dfa2b704aae31e471df0b36e299bd1a5d6c369

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
SignatureYPPtG3b1f4zZRPNBzv9pdNKUkfSA36c2VDdp+v0+Wvv80weqHkSznbfZEeCqUuEYCvlQTs6XNDFP2+C69AfMCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:52:03.406044ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022671
observed 728c983a3ef4f5623e44e10509d72388...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:03.390896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022671/manifest.json
observed c8dab275d5e44c12d3e784f0a4dfa2b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:03.375005ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022671/publication.md
observed 8a7c714ddcb00fe4dbe66bec82b2fa1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:03.358181ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022671/publication.txt
observed e7f5aa9993f4310d224789a7709548de...
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.