OpenTechnical

OT-2026-000071588

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, vented 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-2026-000071588) never changes.

Identity and time

Publication numberOT-2026-000071588 · never reused
Internal UUID01a0ae91-e0ee-7237-950d-c6f1a9a423fe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071588
StatusPUBLIC

Content hashes

Canonical textc8003ac2094cdd1953a7d537d41d31d5d7e1421008122deeddabd76f5bee2a6a
Markdown75bd2eeda263e8a3600ca4af229c0223c4ec21a2b290b9e65b01aa8424f36f2e
PDF
Publication pagecbb0b7fc758a14568b1bd5a7d212e31ce51d816c2104dd345a8eb4e581658b45
Manifest71ca9acae7c1e468a94b08362718d6a96763941f1b6b50233411336d8f76597c

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
Signature4DfxngqswkEmKOq7gy46CP5fyd5/PmZapLP0ehPctMXsUDpof/+G7JEH2X93R/h2IdtsR0AdgUwX+gM4xPF4Dw==
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

2026-09-17T10:25:14.111364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071588
observed cbb0b7fc758a14568b1bd5a7d212e31c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:14.092986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071588/manifest.json
observed 71ca9acae7c1e468a94b08362718d6a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:14.074196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071588/publication.md
observed 75bd2eeda263e8a3600ca4af229c0223...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:14.055267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071588/publication.txt
observed c8003ac2094cdd1953a7d537d41d31d5...
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.