OpenTechnical

OT-2026-000076109

Publication integrity record

Four bellows cup vacuum gripper, four zone face, three 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-2026-000076109) never changes.

Identity and time

Publication numberOT-2026-000076109 · never reused
Internal UUID01a0ae94-6a6e-70de-ac50-47649cc60783 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076109
StatusPUBLIC

Content hashes

Canonical texta0dcd1ed88e3246f19153d2f8000f14521fe98b93b0958502d2cb846daf3cd94
Markdown7184302370abf96441f6a79d8a6099943f40b24c6bdb5cba13d145dba401dd85
PDF
Publication page73dfa1b38223ab46739ceeb4b71f191f888b7401f25f3df7c8942b970e348af4
Manifestd31d4595bfd4f893a272760fca24267168d8a6251eb0bb46249cbfe52c4224d2

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
SignatureIqM0FYuPLojVYat6ooszoelQixb04woai43NYoXQEnApO2UtkQhU1c/Ug+RgbI67o1IOn9q861gRWYZeSqoHAA==
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

2026-09-17T10:11:01.258080ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076109
observed 73dfa1b38223ab46739ceeb4b71f191f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:01.239587ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076109/manifest.json
observed d31d4595bfd4f893a272760fca242671...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:01.220507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076109/publication.md
observed 7184302370abf96441f6a79d8a609994...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:01.202437ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076109/publication.txt
observed a0dcd1ed88e3246f19153d2f8000f145...
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.