OpenTechnical

OT-2026-000090627

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, plant vacuum 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-2026-000090627) never changes.

Identity and time

Publication numberOT-2026-000090627 · never reused
Internal UUID01a0ae9c-7f30-7d20-9294-ba3865a0b1ab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090627
StatusPUBLIC

Content hashes

Canonical texteaa5257827c261213b7e63a2dd47ec755e41bf03fc1965330fc9146efc6e7e35
Markdown087afcd547eaed52a853c6872c54fea91f529df7e933449a4b3500397b4f1b3c
PDF
Publication page08f3ca5b4e51ee4cd357f4e6995b404da79efc0eabf4e7be44ed73c2955f7df9
Manifestf40bd4522c5d293611efbee42e72948b2f1500fc3a28193f828ac5ad6b24b789

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
SignaturewB3+p9UNr2RzU6zuOjreIWBCosWwCx7t2mzmz15Dn1bAVba16QTHyWJsputjD4e1ZH44yujZ8EocyYVJs8s1Dw==
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

2026-09-17T09:44:21.160751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090627
observed 08f3ca5b4e51ee4cd357f4e6995b404d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:21.142348ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090627/manifest.json
observed f40bd4522c5d293611efbee42e72948b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:21.124820ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090627/publication.md
observed 087afcd547eaed52a853c6872c54fea9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:21.107060ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090627/publication.txt
observed eaa5257827c261213b7e63a2dd47ec75...
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.