OpenTechnical

OT-2026-000099733

Publication integrity record

Two cup vacuum gripper, two zone face, pump fed, pressure sensor per zone, sustained 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-2026-000099733) never changes.

Identity and time

Publication numberOT-2026-000099733 · never reused
Internal UUID01a0aea2-c977-7694-b0fe-6aafca5c07a2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:39.138466Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000099733
StatusPUBLIC

Content hashes

Canonical text7cdcfb370b7ca1f577ea18e99ca9a396645df7a76568a21f0b99d5c9ff30400c
Markdowna6a53bf2bca9b0ad08b7f11adfea6eba0587119261e184cdc8424b336cf8075d
PDF
Publication page70cb0f8f34015d6f8583a62f09f266ff0454e3cc47614cd43a9a6b675415e14a
Manifest5a86b76fa14fcd08aa8ca37752dfb45ec6c4d001c9b492aa81078c248c5200a2

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
SignaturexE2Sd/uA86SjZAkY3KQUmVrsttc5YzGTAIcb8zCptQy6AfUVs6zwVi6o2vpLubMBtKjfDWgo2y5TbvY/4Lw8Cg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:29:45.250192ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099733
observed 70cb0f8f34015d6f8583a62f09f266ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:45.234349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099733/manifest.json
observed 5a86b76fa14fcd08aa8ca37752dfb45e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:45.217654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099733/publication.md
observed a6a53bf2bca9b0ad08b7f11adfea6eba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:45.201191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099733/publication.txt
observed 7cdcfb370b7ca1f577ea18e99ca9a396...
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.