OpenTechnical

OT-2026-000085727

Publication integrity record

Three bellows cup vacuum gripper, three zone face, plant vacuum fed, sustained 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-2026-000085727) never changes.

Identity and time

Publication numberOT-2026-000085727 · never reused
Internal UUID01a0ae99-aaae-74e9-8d64-9afde07fe7d7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:41.564662Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000085727
StatusPUBLIC

Content hashes

Canonical textc5711fd91d7cf570989e600cbc56df8d98fd155c0202fcb086efc8d1a5da0526
Markdown96f7de36381b9dcaf26b18ca3e2d2a245f7d5a29a37557c79a9ab4b2f2328070
PDF
Publication page7303fc92b2585d2d71eaa98a28e0bcaf85b0f202758e87c2bcbe2a4bcea2c95a
Manifest31503502ab84132df40b52e0955d5b2b3f6e6f4bdc35906d6f89a6f47899ff22

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
SignatureHSNt9YAKYpQ4/t5VwXv3uOOm1iZTxF1Mq9Bh/Gz6OfJLCOT8HFK0v/Ra0RlJZPKGn5JZ3mqy0dGM9mBh+KRNBg==
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

2026-09-17T09:54:38.311764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085727
observed 7303fc92b2585d2d71eaa98a28e0bcaf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:38.293736ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085727/manifest.json
observed 31503502ab84132df40b52e0955d5b2b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:38.273096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085727/publication.md
observed 96f7de36381b9dcaf26b18ca3e2d2a24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:38.253813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085727/publication.txt
observed c5711fd91d7cf570989e600cbc56df8d...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent