OpenTechnical

OT-2026-000041042

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, 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-2026-000041042) never changes.

Identity and time

Publication numberOT-2026-000041042 · never reused
Internal UUID01a0ae79-b10e-7a96-b61b-149f741225bd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:26:45.980839Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041042
StatusPUBLIC

Content hashes

Canonical text90ca908768f1643ae4af2d8aaf0bcda47145de48f8d1836dea5085e73c646841
Markdown9840baaa0378db678ac97419e2be191a837059ddaab60d7be0df0f68f846f4ab
PDF
Publication page2bc3abdf431a7122d043cf1b52207a4be52a1338542e3380eb75074711f24e92
Manifest29ca3b8d597782399c4fa1e44420da5ebd8ed2e88e06688b31023b811ff3e598

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
SignatureeuQWFnoYK2XLZPrfqQmRzGzwt8hoExaxvS1bSrcZ5/D+6n2bpRwgrW3t+Ufprgf3kWYoqWFLSYl+1KDeCDXFCA==
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

2026-09-17T11:16:57.165507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041042
observed 2bc3abdf431a7122d043cf1b52207a4b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:57.148929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041042/manifest.json
observed 29ca3b8d597782399c4fa1e44420da5e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:57.131887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041042/publication.md
observed 9840baaa0378db678ac97419e2be191a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:57.116597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041042/publication.txt
observed 90ca908768f1643ae4af2d8aaf0bcda4...
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.