OpenTechnical

OT-2026-000083199

Publication integrity record

Three bellows cup vacuum gripper, three zone face, single stage ejector, 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-2026-000083199) never changes.

Identity and time

Publication numberOT-2026-000083199 · never reused
Internal UUID01a0ae97-c963-7b36-be04-8bd6fbe2a714 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083199
StatusPUBLIC

Content hashes

Canonical textda93f978037a54c8a6d94d8f4f20449066577f02d5a1f36295a8bb0beeff23d8
Markdown50e49504a3fc0b67e618e7169ea1e45c8ffa04e98e8a8747fa0fe16771b91a2e
PDF
Publication page21d9c5d7c79694aa4f6c6b3695fe6f6046c01907a06571463c257f7eb31fbd04
Manifestde59bf37297870746c3af014c138adf78dc973ad337edcb00e54c3d41e60ac44

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
SignaturexFYblo768d+ZEuKMgzkZPFuyev3V4GB6allVsjwx3IHVTNN+2fdLmxPMIUIO79lA12V57bBdubo5G6q0ZMAZDA==
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

2026-09-17T09:01:03.348506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083199
observed 21d9c5d7c79694aa4f6c6b3695fe6f60...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:03.328874ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083199/manifest.json
observed de59bf37297870746c3af014c138adf7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:03.177136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083199/publication.md
observed 50e49504a3fc0b67e618e7169ea1e45c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:03.156979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083199/publication.txt
observed da93f978037a54c8a6d94d8f4f204490...
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.