OpenTechnical

OT-2026-000054090

Publication integrity record

Foam pad vacuum gripper, pump fed, supply line pressure sensor, vented 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-2026-000054090) never changes.

Identity and time

Publication numberOT-2026-000054090 · never reused
Internal UUID01a0ae85-b3a7-725c-a059-f7f9a8d63cdf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:53.019909Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000054090
StatusPUBLIC

Content hashes

Canonical text01f2b9e5e3f3ddf48712bf4a9faceffa6c8c62bb44b2e8a07bf26c24633e6117
Markdown99b6da8f53837b143e94c090fae132a1fbf04b3c6e22beb9c1dc5236cd7b49e6
PDF
Publication page1e2b05f4eaa25bdd5701e084d1a739d8853c8bc56c82ca6df6c524189fe46504
Manifest405b702c296e03c19eba0437038896770b3b80bf09352696b151dbe4e1e18afd

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
SignatureCvSQUFWRa3NP+xnPW1ZdGGp7L0ovgfx93GJ5PADD46dAhc+pwUhB+lXDSQuIn084VOwvgj/CzYc3mNg9zVnUCA==
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

2026-09-17T10:54:28.593030ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054090
observed 1e2b05f4eaa25bdd5701e084d1a739d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:28.571481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054090/manifest.json
observed 405b702c296e03c19eba043703889677...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:28.553592ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054090/publication.md
observed 99b6da8f53837b143e94c090fae132a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:28.535674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054090/publication.txt
observed 01f2b9e5e3f3ddf48712bf4a9faceffa...
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.