OpenTechnical

OT-2026-000027016

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump 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-2026-000027016) never changes.

Identity and time

Publication numberOT-2026-000027016 · never reused
Internal UUID01a0ae72-3453-7a97-b72c-dcdcd6c8e105 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027016
StatusPUBLIC

Content hashes

Canonical text191f0f4e0f90c3698348bf5f5a3ce23f49030230530d78ae16daa49449c7daf5
Markdownff85fbd9b1156603769e96c7afcb837f0a50be6bd170fb93d4ec43cf668c2b62
PDF
Publication pageb43739d2afdbb40a29c6d6690afc4ff3ff62bf86f3e0e8c35ea527ec2d808d1d
Manifestbd421c1c278c388cef7b9d6f88ff5341fa6c94efec93780f6b2e2b5ab848b15d

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
Signature/QKahLzuD2E62s1lOdBiqYWycDTgis5D5seAJ3r1N0kYY1jVNQXhfXGMmiGSSJDFWaQ9+iMiZpU6Os5U0xiDAQ==
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

2026-09-17T11:43:45.945312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027016
observed b43739d2afdbb40a29c6d6690afc4ff3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:45.926595ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027016/manifest.json
observed bd421c1c278c388cef7b9d6f88ff5341...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:45.908747ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027016/publication.md
observed ff85fbd9b1156603769e96c7afcb837f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:45.890769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027016/publication.txt
observed 191f0f4e0f90c3698348bf5f5a3ce23f...
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.