OpenTechnical

OT-2026-000080921

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, three stage ejector, sustained 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-2026-000080921) never changes.

Identity and time

Publication numberOT-2026-000080921 · never reused
Internal UUID01a0ae96-b975-7b77-95c7-f8f128972fbe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000080921
StatusPUBLIC

Content hashes

Canonical text556b544f7743a7f49d3d7afd7de3af1bcb759d3d031effae6027b3d21d8ece2b
Markdowne21ab4d6d4de2fa8da60dc0a4b282ba061a5e50cc2093b846a9cf7baab6eaa93
PDF
Publication page69cb4987cac9e6137d03eecf12684579036813deee814b4e6fb25a765c241e65
Manifestad0b9bbc546ab3b27fec4d2beccde0cd95851e773492767ae0d63384e537cae8

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
Signature1uWn/xIXryxe+pGm2xRHYt99icI1gwoIAYQW2pMXAXTyO0Z4X/bzjJjXeigNj5XwmpEIcfR7X9GT9etDmSxOCA==
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

2026-09-17T10:02:07.454383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080921
observed 69cb4987cac9e6137d03eecf12684579...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:07.437391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080921/manifest.json
observed ad0b9bbc546ab3b27fec4d2beccde0cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:07.421325ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080921/publication.md
observed e21ab4d6d4de2fa8da60dc0a4b282ba0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:07.404147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080921/publication.txt
observed 556b544f7743a7f49d3d7afd7de3af1b...
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.