OpenTechnical

OT-2026-000072693

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, single stage ejector, supply line pressure sensor, 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-2026-000072693) never changes.

Identity and time

Publication numberOT-2026-000072693 · never reused
Internal UUID01a0ae92-89d9-7a4f-b566-8c2fbb859442 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072693
StatusPUBLIC

Content hashes

Canonical text35066fbbd141e13e58d4f209033e8006f1baa42bc054d2dc5f20dc60d31b143f
Markdownaf06fa05e3af5b6bc0ac04ca377b64e04e1536c078349031fe689289c3c96ac8
PDF
Publication page880f191288e9edf3a2c9a2afca345f7a2aafc181cb44e37fcc212c0b8722faa5
Manifestd638abde2159baad75ec5baacee00aee298af034a7b4d6cc369d74b0c6aa2447

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
SignatureFG82+HjbKuKl8igdHehGcVGOEUvPu+I5KeP22yPhRAb5iK2NPsCq34H9Wtz19a10Hayal/pEXP66h8YzwJ83Bg==
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

2026-09-17T10:22:34.962034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072693
observed 880f191288e9edf3a2c9a2afca345f7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:34.942435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072693/manifest.json
observed d638abde2159baad75ec5baacee00aee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:34.924671ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072693/publication.md
observed af06fa05e3af5b6bc0ac04ca377b64e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:34.906950ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072693/publication.txt
observed 35066fbbd141e13e58d4f209033e8006...
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.