OpenTechnical

OT-2026-000041417

Publication integrity record

Four cup vacuum gripper, four outlet manifold, 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-2026-000041417) never changes.

Identity and time

Publication numberOT-2026-000041417 · never reused
Internal UUID01a0ae79-b145-7826-b4d7-6955e044a1d8 · 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-2026-000041417
StatusPUBLIC

Content hashes

Canonical textd8eef4a6c374fd4b93456be52ae9f31b12e3f10feb4fede8079e815d3e18b18b
Markdownb2e7ca1e7272b5d4e1e218b3b810150b83b40efe004c4bbb86720db42aef9c37
PDF
Publication page0e17c91946cf940966cfbdf7e4b2f4a4739351f0c0c13b25fd4e9e8eb7bfabe8
Manifest247424b927eca75c5f370cfebb68b281a53164948625c88d74c3a1d9ce53a455

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
Signature2O/uwEbC2CgUFPVDH0MuHSOfuym3uEgJAHevbtk34BDzUdmYD816IFHIHSdLjoRNItnit1/QlthDU++YHnshCQ==
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

2026-09-17T11:17:26.006547ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041417
observed 0e17c91946cf940966cfbdf7e4b2f4a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:25.988410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041417/manifest.json
observed 247424b927eca75c5f370cfebb68b281...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:25.969367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041417/publication.md
observed b2e7ca1e7272b5d4e1e218b3b810150b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:25.951006ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041417/publication.txt
observed d8eef4a6c374fd4b93456be52ae9f31b...
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.