OpenTechnical

OT-2026-000021083

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, pump fed, pulsed 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-2026-000021083) never changes.

Identity and time

Publication numberOT-2026-000021083 · never reused
Internal UUID01a0ae6f-65e5-7f90-88bf-3195c79aecba · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021083
StatusPUBLIC

Content hashes

Canonical text3d4167f16f1a5699eec4335fafc577554397f3a756c358092dd09fe5d62c22dd
Markdowne0f3ed4bef9e71c0c8ad2a5319b8f9d8d2825727c3bafbde2c1fa2144b4eb820
PDF
Publication pageaae5614c9bb2a62671427f28eaf3bcc8f716cd28c0039ee14cbe475f3c0120af
Manifest6cc64356ad03d33fe0b58fa88d25a3c57846a727ae0b6d01c4ef51b9ec9cf3d6

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
Signaturev46BckSXDJ3wc9TEQzwI4dNNW8M9WADB0Yz/XlzowJhVfRtWz5UOAZQZvFisjkw03CEhMKvVebrwbmv42wCmBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:56:21.998185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021083
observed aae5614c9bb2a62671427f28eaf3bcc8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:21.972471ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021083/manifest.json
observed 6cc64356ad03d33fe0b58fa88d25a3c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:15.510523ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021083/publication.md
observed e0f3ed4bef9e71c0c8ad2a5319b8f9d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:15.480138ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021083/publication.txt
observed 3d4167f16f1a5699eec4335fafc57755...
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.