OpenTechnical

OT-2026-000041877

Publication integrity record

Single cup vacuum gripper, common isolation valve, single stage ejector, sustained blow-off after 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-2026-000041877) never changes.

Identity and time

Publication numberOT-2026-000041877 · never reused
Internal UUID01a0ae79-e8a5-74cb-9e62-1b25aa9b5416 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:00.220789Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041877
StatusPUBLIC

Content hashes

Canonical textfc3410e63fda5b94a4b4c3d19696b88bc695fd9572b9afb6a725b62a10d97324
Markdown4b3b5008b9e44802be61fa47bd56a19dee72c2639eb5cce6ccb2408c3aa412be
PDF
Publication page9c8f549af1be88348e10e3e94854b4fc6e6146c22dcb43afaf199db8b1e1dd16
Manifest5297badd8e2823b2b66f27af040639c44c5799efa838443faf2f1e9c3422e7bc

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
Signature4fQ37nMXshddHMNcx3WbOEuvZU5H+fQVgILp7d5Naxoug6aqTognzw5JWb7vMsnaDWsKOl9xZEvmxjxs4QCpAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:16:45.085802ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041877
observed 9c8f549af1be88348e10e3e94854b4fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:45.068148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041877/manifest.json
observed 5297badd8e2823b2b66f27af040639c4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:45.049567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041877/publication.md
observed 4b3b5008b9e44802be61fa47bd56a19d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:45.029755ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041877/publication.txt
observed fc3410e63fda5b94a4b4c3d19696b88b...
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.