OpenTechnical

OT-2026-000049801

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, manifold pressure sensor, sustained blow-off 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-2026-000049801) never changes.

Identity and time

Publication numberOT-2026-000049801 · never reused
Internal UUID01a0ae81-8ff0-7a30-9e31-a57fde17db80 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049801
StatusPUBLIC

Content hashes

Canonical text09bd25320702c70c205aebccc7d7b4daee09b696d8444d44e2fb6261e0d9496e
Markdownc0b7c1661b44a723981b6db8bed5c360b292435248773648746da9352606962d
PDF
Publication page4be69ae4d422524f535b2ca2ef361e02e0bd74b02a3a4b4f4f1e35b9a589b93c
Manifestda5dd8a4a70f031994445c723c2b9b3fd6d585562e745a1a0032f923f3888933

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
SignatureaeUUlPw2j0uo4gTFRnOKIvG+tPANvgFKrTWMjgDhU7gk5ufpbTPOEFAKVxIn3KzZA06FgHypHweqlbR2yDSzAg==
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

2026-09-17T11:02:55.549091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049801
observed 4be69ae4d422524f535b2ca2ef361e02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:55.531573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049801/manifest.json
observed da5dd8a4a70f031994445c723c2b9b3f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:55.512807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049801/publication.md
observed c0b7c1661b44a723981b6db8bed5c360...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:55.491163ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049801/publication.txt
observed 09bd25320702c70c205aebccc7d7b4da...
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.