OpenTechnical

OT-2026-000090668

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, single stage ejector, pressure sensor per zone, sustained blow-off 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-2026-000090668) never changes.

Identity and time

Publication numberOT-2026-000090668 · never reused
Internal UUID01a0ae9c-7f30-77fb-bcfe-3bfd3f5c60cf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090668
StatusPUBLIC

Content hashes

Canonical text4f66ea29cd1cc23505fd32a3d6e935a93a2c4e32503982ee7eb91579eb2fbffe
Markdown59716f7d47f2e5482fb1f1df12f70a5943e0a9973b93d00b75f42a611e45ed72
PDF
Publication page9700d44f207bd5197c36cf1ca027fcb488107b5cdb4b677ded6485cc3ee31db2
Manifest95cd666e03946dfd023ada27b933ea2d41802c30a6813befe0bc5670d2f90330

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
SignaturemRAad72mKxR2FA51idY2rbE7tXiW3/d9/PsYMMspBxZW/R2SJ0Bhb+9UttfXoC0/WnmNMnneuSQKEa7g3FWGBA==
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

2026-09-17T09:44:51.754619ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090668
observed 9700d44f207bd5197c36cf1ca027fcb4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:51.735777ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090668/manifest.json
observed 95cd666e03946dfd023ada27b933ea2d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:51.715385ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090668/publication.md
observed 59716f7d47f2e5482fb1f1df12f70a59...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:51.697395ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090668/publication.txt
observed 4f66ea29cd1cc23505fd32a3d6e935a9...
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.