OpenTechnical

OT-2026-000005969

Publication integrity record

Bellows cup vacuum gripper, three zone face, three stage ejector

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-2026-000005969) never changes.

Identity and time

Publication numberOT-2026-000005969 · never reused
Internal UUID01a0a94a-d283-703d-ab08-8d5d233688d3 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:17:28.198454Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005969
StatusPUBLIC

Content hashes

Canonical text3ad0b0f453339887850edfd8f436480931770357822a3b5ef133b9eb6708ea7e
Markdown7c43e7d5eef93c0dc72ea8356021ac96f38d313a4694039301d4ba7a146e22ae
PDF
Publication paged58c3b1476a10b2e15ab8b8501c23554cf8218ed7f617a623b9d7338860cae28
Manifest355f5d11701b1c77c770867a673306cd7f93ecf8d780bf49ef37f528e47d86a3

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
SignatureWPtTP2ToZ7bAs995Oxt9ceHiqLVTtAbB4H8+UL2x0+Cew4yB58YqNc4hz5t9dIjXIkVmzLwmM7X4rJjpkyYGAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:11.402984ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005969
observed d58c3b1476a10b2e15ab8b8501c23554...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:11.389621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005969/manifest.json
observed 355f5d11701b1c77c770867a673306cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:11.373177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005969/publication.md
observed 7c43e7d5eef93c0dc72ea8356021ac96...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:11.235150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005969/publication.txt
observed 3ad0b0f453339887850edfd8f4364809...
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.