OpenTechnical

OT-2026-000042800

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, pulsed blow-off after 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-2026-000042800) never changes.

Identity and time

Publication numberOT-2026-000042800 · never reused
Internal UUID01a0ae7a-c0d0-7547-8fd5-8e58f5db9634 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042800
StatusPUBLIC

Content hashes

Canonical text09180deb720f8e16032d4e93c30ad9f30227759309f7b241c1bf9e8c5d7b1d0d
Markdown879ea138969125a8c9d66c6217c400ae4288150f66937bf67c006a46f5d6aac2
PDF
Publication page8a6e93cbcadadda3eda3f16720af1a41df60e4534789188fb9583197beec8194
Manifest301f935c0a6afa6ec6d8a6426b15317dd50f4ceb21ad1833db573ee0adcb0b69

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
SignaturexlWn1oozbOPecDoyzmyUFQo8NIGitpyfVm9IZb7rbdL5M3BlK9FKv0+QYRZFXdQz186boEisQXhAOL0enl9NCA==
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

2026-09-17T11:15:16.239437ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042800
observed 8a6e93cbcadadda3eda3f16720af1a41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:16.219548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042800/manifest.json
observed 301f935c0a6afa6ec6d8a6426b15317d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:16.198845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042800/publication.md
observed 879ea138969125a8c9d66c6217c400ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:16.178565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042800/publication.txt
observed 09180deb720f8e16032d4e93c30ad9f3...
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.