OpenTechnical

OT-2026-000053291

Publication integrity record

Four bellows cup vacuum gripper, four zone face, 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-2026-000053291) never changes.

Identity and time

Publication numberOT-2026-000053291 · never reused
Internal UUID01a0ae85-0a15-7d8c-9563-72877f9ba56c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:09.762364Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000053291
StatusPUBLIC

Content hashes

Canonical texte34d28e9c66c74806afc682dcda78145b3cc1727631d57b7e314090e0b2f8d6b
Markdownc763cfe3de6d0938e277dcf94f0bafe8585a4a50030df4f9c67ba9a0f91f849a
PDF
Publication page9877066758d5cc98e3e1ff8d3b63cd643a582543e07ae65b16d6b0868da21765
Manifest8932ffbdf733ce88664c9cb8d7a834f87166bddf4a8de43e22fd04eba4dbe3df

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
SignatureLK4jDnlC+G5RvRSVfxRmrq5apA7XKIlY83bk5RWiZ092n0hY2ckhOtqt5Ur+MqRWO0/ivzxEjHH5PE/uGUDfDQ==
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

2026-09-17T10:54:58.655090ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053291
observed 9877066758d5cc98e3e1ff8d3b63cd64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:58.636003ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053291/manifest.json
observed 8932ffbdf733ce88664c9cb8d7a834f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:58.614688ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053291/publication.md
observed c763cfe3de6d0938e277dcf94f0bafe8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:58.597291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053291/publication.txt
observed e34d28e9c66c74806afc682dcda78145...
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.