OpenTechnical

OT-2026-000015683

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, pump fed, 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-2026-000015683) never changes.

Identity and time

Publication numberOT-2026-000015683 · never reused
Internal UUID01a0ae6e-0c4b-7415-989d-d1be3a170123 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:02.846253Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015683
StatusPUBLIC

Content hashes

Canonical text9aae542ad57beaf23a9930b1ca3dcc13c527d7ebf2473cccfa2b2165c57be34c
Markdown2bcfdba535b87cc703004dd93449b6ecfa89012bba3e1cdd135795df14912e8b
PDF
Publication page56ad8a5eeee56a5e5e572be8971625450747cc952d2ad27b6f8ded181efad484
Manifest9a3c1fbfaf08327c9532b1ae296d24790f1f9be2fdf66c10fcf243087e1db69a

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
Signature47e6DnJjO7lONejpdRp6Y7LTU4556uq+pcDrCiLgpuCDgwqtINqMcl6yEal9kecD2n8oQrFW2YapCQ4YC0H9BA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:04:57.340098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015683
observed 56ad8a5eeee56a5e5e572be897162545...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:57.322269ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015683/manifest.json
observed 9a3c1fbfaf08327c9532b1ae296d2479...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:57.211575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015683/publication.md
observed 2bcfdba535b87cc703004dd93449b6ec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:57.193618ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015683/publication.txt
observed 9aae542ad57beaf23a9930b1ca3dcc13...
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.