OpenTechnical

OT-2026-000089505

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, single stage ejector, manifold pressure sensor, 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-2026-000089505) never changes.

Identity and time

Publication numberOT-2026-000089505 · never reused
Internal UUID01a0ae9b-db02-7746-8ac9-dad96a0eb12e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089505
StatusPUBLIC

Content hashes

Canonical textd3d5cfdf5f85a423ff465c27f1a7bd004f0f0c8a2e21f1bea2c3da802eee9c1f
Markdown7df4ed1433d3b1d4c93a99472c1559f03f9b0f1eb4e3cfedbb632c84966616e1
PDF
Publication pageb4f4869fc33b38baf63e8531261b90a36b8c5682e12ebf8d5535567614c5e3bc
Manifestec2cd8dae5ed961d3d46ce24bf78417f39d6903829cffeba26e3fe8817e4e306

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
Signaturei2qjtK5GOdWIEWGZ4xaQ9dnfhSNGyRTP03HEF/aKE3UQdo0N/lG5k4FjOY8duL8/lWuGOa9lc+qG+8simdBcDQ==
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

2026-09-17T09:47:39.590390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089505
observed b4f4869fc33b38baf63e8531261b90a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:39.572489ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089505/manifest.json
observed ec2cd8dae5ed961d3d46ce24bf78417f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:39.555364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089505/publication.md
observed 7df4ed1433d3b1d4c93a99472c1559f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:39.538059ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089505/publication.txt
observed d3d5cfdf5f85a423ff465c27f1a7bd00...
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.