OpenTechnical

OT-2026-000077197

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, single stage ejector, pressure sensor per zone, pulsed 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-2026-000077197) never changes.

Identity and time

Publication numberOT-2026-000077197 · never reused
Internal UUID01a0ae94-f508-75d4-afa3-b73cd8191d41 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077197
StatusPUBLIC

Content hashes

Canonical text73b9d1253d2c65997bc6529fa94d606a1a80fe52139a396d5793692d4001975b
Markdown518f8cce6ba2705965c9fe2d8d6611d83ab6ff38e991057896c0166b9895f878
PDF
Publication page21446e3dbd586591e6ae1aed2c21aa147fb7b54f63153cf673fd35c3aab69183
Manifestd85ca5d029f1b96d3dead5451843fb25b1ff79dc716d95209ed98cc3cd4877c2

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
SignatureIPJ5ihJkSBSjLS01EGD2e2cFqJjd9lMPZCanQYWXBJnnb/JdWFDX1miIPndCTiXzz/rbTWdF+GzX5f5F+lkgCA==
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

2026-09-17T10:08:40.320998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077197
observed 21446e3dbd586591e6ae1aed2c21aa14...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.301677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077197/manifest.json
observed d85ca5d029f1b96d3dead5451843fb25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.280137ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077197/publication.md
observed 518f8cce6ba2705965c9fe2d8d6611d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.261411ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077197/publication.txt
observed 73b9d1253d2c65997bc6529fa94d606a...
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.