OpenTechnical

OT-2026-000072321

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, single stage ejector, supply line pressure sensor, pulsed blow-off before 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-2026-000072321) never changes.

Identity and time

Publication numberOT-2026-000072321 · never reused
Internal UUID01a0ae92-47c3-703d-89ee-744375bb3a76 · 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-2026-000072321
StatusPUBLIC

Content hashes

Canonical text9c42ab570c912a50eee8d63f39ad54739c474cc0ff4e6b8cf3c12e2a343868bd
Markdown26b932c148636a7149861e681c2d554cf0720ecca94b9978742f81180065a10c
PDF
Publication page5a74445c5239d2a1210257aa3bbe76f7de51bba7b964b23f4b0b9f1355048821
Manifest457ae2b7c2f3c1f2de4a2c2f7f2c4594b6c27d7e319d6cdd2c31c25459cdc782

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
SignatureUFgCzqoORBJVOpPIj7vzMCH4bnjrXQgQiv9DkSfbQKmUl/uZ8KrqWw5dfe+wj86Q2cM+IelIaeZZIxJl11J+Cg==
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

2026-09-17T10:23:32.837376ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072321
observed 5a74445c5239d2a1210257aa3bbe76f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:32.821091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072321/manifest.json
observed 457ae2b7c2f3c1f2de4a2c2f7f2c4594...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:32.803080ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072321/publication.md
observed 26b932c148636a7149861e681c2d554c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:32.787435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072321/publication.txt
observed 9c42ab570c912a50eee8d63f39ad5473...
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.