OpenTechnical

OT-2026-000006256

Publication integrity record

Bellows cup vacuum gripper, four zone face, two stage ejector

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-2026-000006256) never changes.

Identity and time

Publication numberOT-2026-000006256 · never reused
Internal UUID01a0a954-9997-7e74-a48b-340f67bb049c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:28:08.986019Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006256
StatusPUBLIC

Content hashes

Canonical text0193ca9dedcfa1d12f0b8347922465f88edb89cde393f117a0e7a05d9e95e2c0
Markdowne676b1bf4a65322b5e574c880b062f376bc964136faa915496b07f49098a5c0b
PDF
Publication pagebf804f88c87098e2a9340dfb411458aa7eb3bc33d176e710d254e240f576f4ba
Manifestc02e6d3b0189267d11f6a19b5e2710ddfe77b54fe034ae1dd251b5ec4fa48ffd

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
Signature9wovSVrQJ+9D96g5tIkJGwNJZKbszPbi1VE+4KlcuUxkD3LV3TPeYlZdB9B7z13FZSyMfNXg3gfu0q4wmJALDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:30:09.235785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006256
observed bf804f88c87098e2a9340dfb411458aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:09.214544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006256/manifest.json
observed c02e6d3b0189267d11f6a19b5e2710dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:09.198928ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006256/publication.md
observed e676b1bf4a65322b5e574c880b062f37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:09.186115ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006256/publication.txt
observed 0193ca9dedcfa1d12f0b8347922465f8...
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.