OpenTechnical

OT-2026-000075801

Publication integrity record

Two cup vacuum gripper, two zone face, pump fed, pressure sensor per zone, 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-2026-000075801) never changes.

Identity and time

Publication numberOT-2026-000075801 · never reused
Internal UUID01a0ae94-29fe-71d2-9e3a-c193c986e3cb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075801
StatusPUBLIC

Content hashes

Canonical text36e346d6a1557badeebde3940a188d8f3912ec8a72144157307bdda6b12198c6
Markdownc9653241f0cde300c99d88df45eee431b2b4f5061f7457f8d6b73b9bd6178fd1
PDF
Publication pagec792c8a0dcad6db231bfbe79fc49a08b1448da2d90836643d7582111de175c37
Manifest29fbeee83e47a42a4afb5a7b1ced4a28ccfa488288b36c37fb5f3ea2971029b4

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
SignaturehLJeDD/iVC7CmLboucW5L2lyZF0/98s3gs5J4zHchPWMA7fHrql2p3YIxBAHR90vaQAbJ1ULMRX4RBku+jKkDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:14:17.560133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075801
observed c792c8a0dcad6db231bfbe79fc49a08b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:17.543069ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075801/manifest.json
observed 29fbeee83e47a42a4afb5a7b1ced4a28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:17.526300ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075801/publication.md
observed c9653241f0cde300c99d88df45eee431...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:17.508587ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075801/publication.txt
observed 36e346d6a1557badeebde3940a188d8f...
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.