OpenTechnical

OT-2026-000047851

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, pump fed, pressure sensor per zone, pulsed 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-2026-000047851) never changes.

Identity and time

Publication numberOT-2026-000047851 · never reused
Internal UUID01a0ae7f-c421-7c04-b4d2-1ea754eb7e22 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047851
StatusPUBLIC

Content hashes

Canonical text341cfd3fdbffd844f793cd07669c84f31ff8f8306bffdc67a340be95a91858ec
Markdownf14e6ecc44576c15f0883c08ab69b2f8ce0b890d5d52765080a833660abf670d
PDF
Publication page8a0dda76b4d1d8849468082b54d3bd03b752e39544ec0aed5f8e0b3413bb8c5c
Manifest00bce970a64ccb68cdfd4e4cc455bfdf409b304641a3880e60e43b78a0d86ed7

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
SignatureRRXisXqtcwJqHprPO0SBBAq8rZ0VmPFq5Rmp8WPsnnyFxVK49HX4kP2ndU6aNXBQlDy6vMNm3LYa67gA5qkkBA==
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

2026-09-17T11:05:46.286089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047851
observed 8a0dda76b4d1d8849468082b54d3bd03...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:46.265550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047851/manifest.json
observed 00bce970a64ccb68cdfd4e4cc455bfdf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:46.244644ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047851/publication.md
observed f14e6ecc44576c15f0883c08ab69b2f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:46.225012ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047851/publication.txt
observed 341cfd3fdbffd844f793cd07669c84f3...
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.