OpenTechnical

OT-2026-000077020

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, vented 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-2026-000077020) never changes.

Identity and time

Publication numberOT-2026-000077020 · never reused
Internal UUID01a0ae94-b071-74d9-8759-7963c4eb00df · 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-2026-000077020
StatusPUBLIC

Content hashes

Canonical text00e515c61e361cf08c174b42a5526c8315bef8a21d207f8d4f3f683eac777db0
Markdown90e5c6d31d18e4f4ad0c4fd125d14b3aea2c940678712ea9a67d7211ed525d58
PDF
Publication paged26984ad080cf61e9631df8bb5d46d758bb5c0df25a93ef70acb809c7b3c711d
Manifest293c984a3f6a2049d02efc8de882cf2c10d36d3aa71330f3edc5506f51de073d

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
SignatureUZh+cybvX67MzBMQT7NcX0fyP3Xd0oAiMkuC/Kc0saRt0cXRsa3hqUfds0pkNpecCYgA1laAEy9A0VImXP/nDQ==
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

2026-09-17T10:10:25.004779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077020
observed d26984ad080cf61e9631df8bb5d46d75...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:24.985429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077020/manifest.json
observed 293c984a3f6a2049d02efc8de882cf2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:24.966384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077020/publication.md
observed 90e5c6d31d18e4f4ad0c4fd125d14b3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:24.546289ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077020/publication.txt
observed 00e515c61e361cf08c174b42a5526c83...
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.