OpenTechnical

OT-2026-000054987

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, single stage ejector, supply line pressure sensor, 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-2026-000054987) never changes.

Identity and time

Publication numberOT-2026-000054987 · never reused
Internal UUID01a0ae86-5e80-738e-87eb-ec656cf51dd0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:36.756598Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000054987
StatusPUBLIC

Content hashes

Canonical text28b26dc1ecdd8eb47a27d14c42c03772d8030e7e1a0b47bcc70379e9ab44a645
Markdown575915b6fc226079a467417f6aeb3c239c628ca9345e59cce7e0e86721214e6c
PDF
Publication pagefad24bd6e456d792a65b0760f1bdb5189492ce76b7eab29c182ea248c047fad1
Manifest5c74d0f8185dde2ede85decc6ad6aa61f65bec04f4f66deecc048431dda04bdd

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
SignatureI1YxMXQEV/ddEIl64txpS7L+SEjBSZmYhxQfjDdX4+z8WhH2Mp6M9b0RkkwQMb20/xjp/7nRwtTTW8u7+il2CA==
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...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:53:06.744041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054987
observed fad24bd6e456d792a65b0760f1bdb518...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:06.725411ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054987/manifest.json
observed 5c74d0f8185dde2ede85decc6ad6aa61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:06.708071ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054987/publication.md
observed 575915b6fc226079a467417f6aeb3c23...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:06.690194ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054987/publication.txt
observed 28b26dc1ecdd8eb47a27d14c42c03772...
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.