OpenTechnical

OT-2026-000072154

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, supply line pressure sensor, vented 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-2026-000072154) never changes.

Identity and time

Publication numberOT-2026-000072154 · never reused
Internal UUID01a0ae92-47c2-7de6-8949-ebd0ee663c15 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072154
StatusPUBLIC

Content hashes

Canonical text786b5935068505d2f4acdaae6ae0759a45df49c58deaa71448dc5753f05d7760
Markdownc24b817427fb3ef3c68178d38f9d1b29009dc2a2e40575706e262785e9fdcf5c
PDF
Publication page31cb642125bf53561221b6299d4d70ea255413dddda174f58d6487184d1f84d6
Manifest6630d0dd2a506b4f5bd69221c0cd01dc53527bbce9f6ab7304c98f6bc505bc18

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
Signature2rz/1cXNXvZvugfZWCfQz7MtTNWC/sXFrNwsNQVblfVbLExfX6YbCRSAgbu08Nwq62IcP6N9oLPUTPLKzqJxCA==
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

2026-09-17T10:23:15.145280ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072154
observed 31cb642125bf53561221b6299d4d70ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:15.128220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072154/manifest.json
observed 6630d0dd2a506b4f5bd69221c0cd01dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:15.112028ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072154/publication.md
observed c24b817427fb3ef3c68178d38f9d1b29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:15.095332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072154/publication.txt
observed 786b5935068505d2f4acdaae6ae0759a...
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.