OpenTechnical

OT-2026-000043649

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, sustained 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-2026-000043649) never changes.

Identity and time

Publication numberOT-2026-000043649 · never reused
Internal UUID01a0ae7b-92d0-7133-a40f-04325542d1bf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043649
StatusPUBLIC

Content hashes

Canonical texta8eb4bdf20abefab5c533d935eb96be2e7ecc3bef24df9bd39b00a954d1d96c2
Markdowncb9d6e75a66d289df00dc4f451086c0573c325c5a344dad1c47fc80a7c8d16ac
PDF
Publication page590153aa19c9f37020a2608bfc1b0cff9d3a1367dd5189ac4184c826e2729b81
Manifest30ce666a267c003ce2e5e61894efcf1118902428fe6aa12aefed13fb1b7ad59c

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
Signature96mQ8+4MtzNK/fKbd0xr4HvzfQg/U6OyVbr0WdZLuK4mtCBNcTdV236PYjJdvXJqOWG+gRlM2ELWoBBoy7ckCA==
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

2026-09-17T11:13:07.834042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043649
observed 590153aa19c9f37020a2608bfc1b0cff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:07.814886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043649/manifest.json
observed 30ce666a267c003ce2e5e61894efcf11...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:07.794058ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043649/publication.md
observed cb9d6e75a66d289df00dc4f451086c05...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:07.774857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043649/publication.txt
observed a8eb4bdf20abefab5c533d935eb96be2...
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.