OpenTechnical

OT-2026-000043358

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, sustained blow-off 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-2026-000043358) never changes.

Identity and time

Publication numberOT-2026-000043358 · never reused
Internal UUID01a0ae7b-327e-7fd3-90c5-adfebd430508 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043358
StatusPUBLIC

Content hashes

Canonical textf94baab23b78f8c28f148956eb2c8a04d4c2ba1caa728bd178286bc29ea225cf
Markdown6e7de3c14b0d1865ca1a0fa9a402dd538ce7506058a3b221130d6b1d98db13aa
PDF
Publication pagea9c7d7d5b578680ee770ad95223b6bd8d69e35f78c299e1a542ba9bbc06a9325
Manifest6382929948264fa6a220d84674521570e8e42db883da31c35dd815138ffd4857

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
SignatureQQpvpKmxm/xDb/MTOyAtH/Ztvw17YToTqpf5xAlhfpjqFQnciNAVZoSUJk0LyhyoHUYREHbzIPLGTH7ip/dTBg==
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

2026-09-17T11:13:52.636313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043358
observed a9c7d7d5b578680ee770ad95223b6bd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:52.616383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043358/manifest.json
observed 6382929948264fa6a220d84674521570...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:52.595188ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043358/publication.md
observed 6e7de3c14b0d1865ca1a0fa9a402dd53...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:52.576341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043358/publication.txt
observed f94baab23b78f8c28f148956eb2c8a04...
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.