OpenTechnical

OT-2026-000077019

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, three stage ejector, pressure sensor per zone, pulsed blow-off before set-down

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-2026-000077019) never changes.

Identity and time

Publication numberOT-2026-000077019 · never reused
Internal UUID01a0ae94-b071-72a5-81c0-fd1869e5fa7f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077019
StatusPUBLIC

Content hashes

Canonical textea1d694dfba7152f1ad3c4561f2b9ded26ce5b27da5df00663d1767a9f28aa66
Markdownc5da572af841214cdf1563529f6a6c5aad16564999fc53b1bb76219b313b2e78
PDF
Publication page6043f647ebe7a5af4230c172c4f24e51a1628819acb91256a0539f99a15e4bd7
Manifestb18e3537b32af8979288ba9136be8e36f0ac473763f597d36eb35e08d7ec2558

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
SignatureAaSU6TVoV8wdaWStYP2Bo8EvhzirnvLozOpfEd/oq2gRlPJ9W5YCyfdwFTf01KUFhg5iaAIxAgZlPMS3Q5RABA==
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

2026-10-15T04:23:04.830806ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077019
observed 6043f647ebe7a5af4230c172c4f24e51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-15T04:23:04.815462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077019/manifest.json
observed b18e3537b32af8979288ba9136be8e36...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-15T04:23:04.800159ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077019/publication.md
observed c5da572af841214cdf1563529f6a6c5a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-15T04:23:04.782160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077019/publication.txt
observed ea1d694dfba7152f1ad3c4561f2b9ded...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-28T04:23:05.477961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077019
observed 6043f647ebe7a5af4230c172c4f24e51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-28T04:23:05.463933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077019/manifest.json
observed b18e3537b32af8979288ba9136be8e36...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-28T04:23:05.447644ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077019/publication.md
observed c5da572af841214cdf1563529f6a6c5a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-28T04:23:05.432223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077019/publication.txt
observed ea1d694dfba7152f1ad3c4561f2b9ded...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent