OpenTechnical

OT-2026-000074030

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, supply line pressure sensor, vented 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-2026-000074030) never changes.

Identity and time

Publication numberOT-2026-000074030 · never reused
Internal UUID01a0ae93-2b8f-73fc-9ead-bbf92f526f0d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074030
StatusPUBLIC

Content hashes

Canonical textdefcb6090b27b41e54b9ef5c0fcb36d19792bddd96310c7947885a1040e27d34
Markdownb5bb374a0692a52243369a98f9227605a0fa5db58f61590104fde5b79273d00d
PDF
Publication page757d6148a93ff8d5021b064337ede9f203a463141d9defc22f1ce21cc181a1a0
Manifest46b17d93b01b036f8fa1d63e35e94cdf9f61bae85397068e3a42325c0e9ba199

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
SignatureAX7lmfgvKZ3ksed9gKAuBFTbNprGGH3STBrwAzbJkavpJaHjGqkW/55Yfo1I205OFicQNd/y2WenV2ax6u8DDQ==
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

2026-09-17T10:20:20.788198ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074030
observed 757d6148a93ff8d5021b064337ede9f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:20.768223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074030/manifest.json
observed 46b17d93b01b036f8fa1d63e35e94cdf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:20.747211ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074030/publication.md
observed b5bb374a0692a52243369a98f9227605...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:20.729196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074030/publication.txt
observed defcb6090b27b41e54b9ef5c0fcb36d1...
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.