OpenTechnical

OT-2026-000067549

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, manifold pressure sensor, vented after set-down

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-2026-000067549) never changes.

Identity and time

Publication numberOT-2026-000067549 · never reused
Internal UUID01a0ae8f-6bda-7d34-82ca-6cf3187fc1fa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067549
StatusPUBLIC

Content hashes

Canonical text6283fd0985a161c122506dbde1a7a259e38e6ef47201dc92ce9bc0ec22331793
Markdown2791eda19533642af581890c6296724dc735b44a5e80816d871b5e58f1f6e6e9
PDF
Publication pagedf1ef1b246446400739a3d8bbe5c5a266d565bb847325a6d13634e43c3a7886c
Manifest8e5d33fd3c93b78387eceb2d6e4561a8eef3e22316e92234433bee14ca8bf7c5

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
SignatureqIK2fbpxBfuMH95u8oRDz0Nl86Xf3N24ohPcFAZ/nQwHSIcCVUvx/jBKFk66LPiwClQMWf01mp52VJJuL0xkAA==
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

2026-09-17T10:31:51.343832ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067549
observed df1ef1b246446400739a3d8bbe5c5a26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:51.327632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067549/manifest.json
observed 8e5d33fd3c93b78387eceb2d6e4561a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:51.310992ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067549/publication.md
observed 2791eda19533642af581890c6296724d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:51.292571ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067549/publication.txt
observed 6283fd0985a161c122506dbde1a7a259...
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.