OpenTechnical

OT-2026-000081159

Publication integrity record

Foam pad vacuum gripper, four zone face, 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-2026-000081159) never changes.

Identity and time

Publication numberOT-2026-000081159 · never reused
Internal UUID01a0ae96-b977-7370-bc84-7fb33dfe7ecd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081159
StatusPUBLIC

Content hashes

Canonical textf507a3cf64f4cd7cc2d39ddd28422ba8c2fab1881de99f265f21ed7184301fbd
Markdown6b5d1f8827115f9a958f1b7552fe56579305bd5ba752deb734c3887b0452c9a4
PDF
Publication pagec32845340e04dd03bda11ecf2f2dcd554be3e0b456f3dcfa9bfa7b8afe47bffc
Manifest30b454eac7bd9c05dece638147862722880649a808118786c66d64f931315659

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
Signaturem7mZz60mfxhh+6SVL0iOYn3u0yU2S66oSkIatcFkiQVw6r+n+iASFk71fbGk1vC7r4TSAsIYf7N5DjQjng50CQ==
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

2026-09-17T10:02:33.134536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081159
observed c32845340e04dd03bda11ecf2f2dcd55...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:33.117795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081159/manifest.json
observed 30b454eac7bd9c05dece638147862722...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:33.101432ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081159/publication.md
observed 6b5d1f8827115f9a958f1b7552fe5657...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:33.083725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081159/publication.txt
observed f507a3cf64f4cd7cc2d39ddd28422ba8...
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.