OpenTechnical

OT-2026-000077778

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, vented 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-2026-000077778) never changes.

Identity and time

Publication numberOT-2026-000077778 · never reused
Internal UUID01a0ae95-2ed0-7569-9270-f5364a2224a1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077778
StatusPUBLIC

Content hashes

Canonical text7ff5bc257999b78867be52464c6cad7c9e6a0451052e41839114678864f560a0
Markdown4a3af339ad1871ea654aebb73e47c7f184135bf101dd4e79806c6089e5939486
PDF
Publication page5b13e9a574d4fb22588bb2bdeaa9a97eed13dd9e13c8f197451be84f9114d0a1
Manifestab3cc8375927e5462fe5a5e4c21d941b55e6be6084ebfd29ff1ba6ece4c950fb

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
Signature3Q79BOvY/atR65SZEDpEDcJ58EeRpidj7Z0KYV/8MWpDZuap443GZFzgwfZqpwPp2fmzbRONd1CHArr3ojSuAw==
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

2026-09-17T10:07:21.834213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077778
observed 5b13e9a574d4fb22588bb2bdeaa9a97e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:21.815918ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077778/manifest.json
observed ab3cc8375927e5462fe5a5e4c21d941b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:21.796702ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077778/publication.md
observed 4a3af339ad1871ea654aebb73e47c7f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:21.778706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077778/publication.txt
observed 7ff5bc257999b78867be52464c6cad7c...
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.