OpenTechnical

OT-2026-000077021

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, three stage ejector, pressure sensor per zone, 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-2026-000077021) never changes.

Identity and time

Publication numberOT-2026-000077021 · never reused
Internal UUID01a0ae94-b071-762a-a238-9492a1b64250 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077021
StatusPUBLIC

Content hashes

Canonical text1146a2b2b093827319d72d19b564eb7abaa96def5d2d32d30ef0710bb492dc68
Markdown21295141a7c74c82dfb6ad55004829c2c178dcc73eba53e48763dfa89b89f4b4
PDF
Publication pageddd6d65e8da833260f8e4436427f418049ccec00760f5e9af9d09901aa542f42
Manifest744883f236368ac9d0703df356daedb0b501ee7b1bc6d48dab7301f3a0146a22

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
SignatureHXeeHk2sIGDxsdPLSLkwlJ+aurv98zxOgMYzQm8Bi4FFWvlkSZXnk5totBGkPrO2KkysNjUxG3yueytDFkxHBw==
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

2026-09-17T10:10:25.462747ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077021
observed ddd6d65e8da833260f8e4436427f4180...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:25.444300ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077021/manifest.json
observed 744883f236368ac9d0703df356daedb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:25.049234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077021/publication.md
observed 21295141a7c74c82dfb6ad55004829c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:25.026789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077021/publication.txt
observed 1146a2b2b093827319d72d19b564eb7a...
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.