OpenTechnical

OT-2026-000012503

Publication integrity record

Four cup vacuum gripper, four zone face, single stage ejector, pulsed blow-off 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-2026-000012503) never changes.

Identity and time

Publication numberOT-2026-000012503 · never reused
Internal UUID01a0ae6d-39f7-7e88-80ad-dc9056101e0b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012503
StatusPUBLIC

Content hashes

Canonical text2c0b5cb0787a44b32881fa6681180c4e7c9ef9ca9752db0f52305756c2d155a8
Markdown2f0f90d789979a57b0f2e4d08207da1e8996024c9aeb12927b1d69e9292f558f
PDF
Publication page59158d8d7cf1c054819456f905de1dd634390ac320dc0dad1b8f71667ba8b79a
Manifest07b41217e8d2bfb0b88c252ba2ad681df23bd879eb09d3c81b233aa3cc9dc32a

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
SignatureK4ZdDt9agVJAIvS42wM5ZC1pAQ+e2Pzcth3OQy+G1Yc3j7yVxnrfJmzdWMsCaplMbO+j6wM9oI0s07ezlnH/DA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:12:01.340760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012503
observed 59158d8d7cf1c054819456f905de1dd6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:01.322377ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012503/manifest.json
observed 07b41217e8d2bfb0b88c252ba2ad681d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:01.304199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012503/publication.md
observed 2f0f90d789979a57b0f2e4d08207da1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:01.284773ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012503/publication.txt
observed 2c0b5cb0787a44b32881fa6681180c4e...
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.