OpenTechnical

OT-2026-000029508

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, sustained 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-2026-000029508) never changes.

Identity and time

Publication numberOT-2026-000029508 · never reused
Internal UUID01a0ae73-5e21-7527-a0fa-0b821daaa335 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029508
StatusPUBLIC

Content hashes

Canonical text71b77d6268c7cb69f2f5b01fa9c6615453cdd0979baded00c2652a4924173516
Markdown1efb5a735112565ce4142c688d757f71bd24650858c5f9d1b60a4e091d8b1649
PDF
Publication page187d0ae8da41193602c9dc66c6c90b83372cc18bd9e74f28a5a9afa32bf2e4cc
Manifest10873a10b5fe56b5d28b44afa2eaa6128a94cd7d5afd066d7a3b3b614b328a68

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
SignatureOHyYtOA2bOHMx7XSJWSGSdcF+yDb0sylD2T8RcC/NqNk+t6iqsIKmQPMWGC2mcb8rF52ItXlvH0CFmYXOKHkAw==
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

2026-09-17T11:39:08.679341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029508
observed 187d0ae8da41193602c9dc66c6c90b83...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:08.663417ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029508/manifest.json
observed 10873a10b5fe56b5d28b44afa2eaa612...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:08.641821ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029508/publication.md
observed 1efb5a735112565ce4142c688d757f71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:08.624764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029508/publication.txt
observed 71b77d6268c7cb69f2f5b01fa9c66154...
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.