OpenTechnical

OT-2026-000081232

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line 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-2026-000081232) never changes.

Identity and time

Publication numberOT-2026-000081232 · never reused
Internal UUID01a0ae96-f373-7550-aaea-1e1e7759b7b5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081232
StatusPUBLIC

Content hashes

Canonical text98c491ff2743803838edf4f4e04b02a86166abdaf326f92fd0aaf5e87cb9f3f2
Markdownebd0b701513905c12612635e1b58cef88f6c7853dab508d8e02e8bef07f81a75
PDF
Publication pagedc1bf2137be093606c770bc6813b849d43ca1abeb5f76e8a6f1852c1b8b196a2
Manifest76305df41190df28646d6fcacb247e40ac52ca0c1889b57053d2e5ff9b4e2f2c

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
Signature5V6A3E6aGELIk8Obmypkg+8ghFnVkHr5ksu2JydTaaMjDlG3gV8ImPsM3rsmXLkHlf9Dq7mTtmCrlXnWMjlVDg==
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

2026-09-17T10:01:19.127813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081232
observed dc1bf2137be093606c770bc6813b849d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:19.110186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081232/manifest.json
observed 76305df41190df28646d6fcacb247e40...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:19.090117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081232/publication.md
observed ebd0b701513905c12612635e1b58cef8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:19.073359ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081232/publication.txt
observed 98c491ff2743803838edf4f4e04b02a8...
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.