OpenTechnical

OT-2026-000004873

Publication integrity record

Bellows cup vacuum gripper, two zone face, two outlet manifold, plant vacuum fed, contact triggered

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-2026-000004873) never changes.

Identity and time

Publication numberOT-2026-000004873 · never reused
Internal UUID01a0a926-1c38-73c2-88fb-650cd48bc167 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:37:22.235069Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004873
StatusPUBLIC

Content hashes

Canonical text1c1160a6afcd9cf34018b68d8147605e1a7f18257a7ee732e3bb717fa7849500
Markdown749a1d230d1a47fb6bc51c57c2a15bbb0b112bb066837c206b538faf18971ece
PDF
Publication pagef1e7d31e63a1f499decfc455adf212144506c6adb9b9c06bb36105569fab8549
Manifest81c23096d51080a76b0cf0012f7a30bd8c615183d8b008ede59a7eb259e34de6

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
Signaturem4FDSDVev1zryPp3NhgECoAURkHTcLvtiMNGJNVfUTg108es5W5/cucO5iDaYhSeOeKWWv2TlD4Wl+RKlRLlDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:40:09.879233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004873
observed f1e7d31e63a1f499decfc455adf21214...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:09.740634ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004873/manifest.json
observed 81c23096d51080a76b0cf0012f7a30bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:09.727818ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004873/publication.md
observed 749a1d230d1a47fb6bc51c57c2a15bbb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:40:09.714604ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004873/publication.txt
observed 1c1160a6afcd9cf34018b68d8147605e...
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.