OpenTechnical

OT-2026-000057912

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, sustained blow-off after 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-2026-000057912) never changes.

Identity and time

Publication numberOT-2026-000057912 · never reused
Internal UUID01a0ae88-6ed9-7ef8-9c47-040168b1a067 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057912
StatusPUBLIC

Content hashes

Canonical text3339fa58224524ba234dba3d6ce255fe521bc717fdd0393b2ddc333e9a11a23d
Markdownec3fc214baeeb0cc17169d0e06182ef20105668617b6a366e346f716ebcf3dcc
PDF
Publication page1ad222af8bca3f5491c10f85f800e2b0ce9c56a493eafc39093f25813020b848
Manifest91090ce217c73348bec2110877e4ebf0cacd7094057490912950a35531f957b0

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
SignatureG2gleCSK+iFNiTMgAPSuCyczrmpfE39N5SN5vUu98hsbJniE6Y05Zgh2EUwlPKRPSGCUuViqhqzjZgumKdElBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:47:31.211400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057912
observed 1ad222af8bca3f5491c10f85f800e2b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:31.192431ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057912/manifest.json
observed 91090ce217c73348bec2110877e4ebf0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:31.175677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057912/publication.md
observed ec3fc214baeeb0cc17169d0e06182ef2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:31.156103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057912/publication.txt
observed 3339fa58224524ba234dba3d6ce255fe...
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.