OpenTechnical

OT-2026-000049465

Publication integrity record

Four cup vacuum gripper, four outlet manifold, single stage ejector, manifold pressure sensor, sustained blow-off after 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-2026-000049465) never changes.

Identity and time

Publication numberOT-2026-000049465 · never reused
Internal UUID01a0ae81-8f7c-77b1-8716-f9296372a8a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049465
StatusPUBLIC

Content hashes

Canonical text6ac37c3a7cb4d7560fcedcb6df99187270b829934443e98c2445ff791270b31e
Markdownfd9352a8c824f74f0f9c9881d66a25e586dd8268973176098ba12369218957ea
PDF
Publication pageef380856fa4a713a761713956b62f5e33c252b54010991bac14828dc77eb205c
Manifest0fa564e8ccf9bf8937070baee9b46f154ea2358d4dc9165fdf7f9aeffbe4a5c3

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
SignaturevQLiUCTnUAilsz93oiNWagcG0p3SnSZO8PNdKsE7dLRlRXIIyQH5c13sccpfaLwdo7zgQiX/hscve15h9nqaAw==
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

2026-09-17T11:02:18.361990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049465
observed ef380856fa4a713a761713956b62f5e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:18.343888ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049465/manifest.json
observed 0fa564e8ccf9bf8937070baee9b46f15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:18.325845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049465/publication.md
observed fd9352a8c824f74f0f9c9881d66a25e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:18.307610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049465/publication.txt
observed 6ac37c3a7cb4d7560fcedcb6df991872...
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.