OpenTechnical

OT-2026-000080716

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, 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-2026-000080716) never changes.

Identity and time

Publication numberOT-2026-000080716 · never reused
Internal UUID01a0ae96-b973-7fad-b5fc-4dd63ee380fc · 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-2026-000080716
StatusPUBLIC

Content hashes

Canonical textcfbd1ff39e036fbe1017ff6813360fb56fe11ecdaa25a5cac68ac6b01204509f
Markdown7e03a1c602d319be2bac373672f9da18086d5c3976675d6d7b7b370ba2315166
PDF
Publication page6ce39bb630aa74175840ab9b2e811b52dae210d3ce13a2df70f89506b61ce2ff
Manifest4eae5550a76f6a675454382db61fec8bd48d086d71e348f321362f2170f4fac0

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
SignatureV8LlFyFVmkSDXjBTTRa7zusKoEIk7m7d9o0P8vXOIbwlYISEGKPK7vFyTOz0N6oauSyeCzoPMG1wupJGYNDfBQ==
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

2026-09-17T10:01:44.998272ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080716
observed 6ce39bb630aa74175840ab9b2e811b52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:44.979661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080716/manifest.json
observed 4eae5550a76f6a675454382db61fec8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:44.961766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080716/publication.md
observed 7e03a1c602d319be2bac373672f9da18...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:44.943349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080716/publication.txt
observed cfbd1ff39e036fbe1017ff6813360fb5...
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.