OpenTechnical

OT-2026-000080115

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, single stage ejector, 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-2026-000080115) never changes.

Identity and time

Publication numberOT-2026-000080115 · never reused
Internal UUID01a0ae96-4378-7bed-8f3b-1d87d3c836fb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080115
StatusPUBLIC

Content hashes

Canonical text7c5adf109c6322c30c1714a9b114017460a0bd85062ed21c8efb97d6297a8882
Markdown7d8c0335c736ab8ccbd3a1fc233e49bf331f5da84a4b1ddc10662eb17f0e6601
PDF
Publication page8dcfd2f8d7f2535bc69ce7254b37126862b4718c9f8c83f2fa0d3b8c5148374a
Manifest832a9442c7c17345d387ac32efd4b7b50d5f5b00aa1c9c9f061759f422e213fb

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
SignatureSrlRDn/Azy56OIJbspkBuMICBSucVzuu6J3MrgcGskjxS84NjSIoGumGBmcEkiFEBG/ikxbk2xjJ9qV/VDPRDw==
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

2026-09-17T10:04:03.562224ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080115
observed 8dcfd2f8d7f2535bc69ce7254b371268...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:04:03.543599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080115/manifest.json
observed 832a9442c7c17345d387ac32efd4b7b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:04:03.524672ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080115/publication.md
observed 7d8c0335c736ab8ccbd3a1fc233e49bf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:04:03.504640ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080115/publication.txt
observed 7c5adf109c6322c30c1714a9b1140174...
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.