OpenTechnical

OT-2026-000049679

Publication integrity record

Foam pad vacuum gripper, three zone face, three outlet manifold, two stage ejector, 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-2026-000049679) never changes.

Identity and time

Publication numberOT-2026-000049679 · never reused
Internal UUID01a0ae81-8fee-74fb-a039-d16a9e03d0a1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049679
StatusPUBLIC

Content hashes

Canonical texta6a7e406f6e9ce003f0164c252cf7fbb5eebdb222b4c397cbac8bbc20792e398
Markdown4734601622319aaccf29d0f24e1f9e31ab636dc103ce6c9a354368de229aad13
PDF
Publication page090ee1b2bf98f9a66cd1f30fa15ddb45260fd4009a61feae312af7661404cebb
Manifest3816443ef12930a5764d6b503350a5acca415873120f3233054fac1f06c9d320

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
Signature17gxRc7lydFmV+/OeeklyQuF+2IGBTRSBxCtuIsOsnUMCnxKcjnL6U1as90KLpB6h7YjC39Dn0KQQqKBD9U5Dg==
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

2026-09-17T11:02:41.171797ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049679
observed 090ee1b2bf98f9a66cd1f30fa15ddb45...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:41.153906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049679/manifest.json
observed 3816443ef12930a5764d6b503350a5ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:41.135802ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049679/publication.md
observed 4734601622319aaccf29d0f24e1f9e31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:41.115969ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049679/publication.txt
observed a6a7e406f6e9ce003f0164c252cf7fbb...
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.