OpenTechnical

OT-2026-000072287

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, pump fed, supply line pressure sensor, 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-2026-000072287) never changes.

Identity and time

Publication numberOT-2026-000072287 · never reused
Internal UUID01a0ae92-47c3-79f4-a722-ee0e6471235b · 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-2026-000072287
StatusPUBLIC

Content hashes

Canonical text4e8993ff3448bd412862b78e89c8d6344e4be3c04c8c6dd68e35c355d763519a
Markdown029e98f7f8dc650a89c0cc5105dab755fd338042836578650cf19d8d4487ff58
PDF
Publication page73aead1f3972cc0872555be154328db2e5a88b19939bc27fd5da52b190028492
Manifest070a035039e2ab35a32c61b0c1e811e53684b73414638c3ec2ad052183f83baa

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
SignatureSb1yj8Mc59jTlSX3Wiy4Z8c3AQ/+VT+fK3TpEJjA53v2UCAA55l5bDFhz7NzQEZyIBRlSX/j02QbP4mfsTNhDA==
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

2026-09-17T10:23:24.205772ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072287
observed 73aead1f3972cc0872555be154328db2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:24.188997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072287/manifest.json
observed 070a035039e2ab35a32c61b0c1e811e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:24.172823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072287/publication.md
observed 029e98f7f8dc650a89c0cc5105dab755...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:24.155950ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072287/publication.txt
observed 4e8993ff3448bd412862b78e89c8d634...
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.