OpenTechnical

OT-2026-000077752

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, vented 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-2026-000077752) never changes.

Identity and time

Publication numberOT-2026-000077752 · never reused
Internal UUID01a0ae95-2ed0-7fc8-a230-91a47a491828 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077752
StatusPUBLIC

Content hashes

Canonical text90969a750f1e75b59a2aadd5d10714d79b59e8a7a47ff8beb1610f7b6fd65ea4
Markdown5a9077782e44bf50cd68a029f3f0dd2cab856ce05a3b635eee497807b04d7dac
PDF
Publication pageb852f0d2efbadc4bccbc7ec7d5370ee5cea7ba0e23e0f9f7e8e2792a0f9ffd3e
Manifest4a12ed29f1d77e7d96313e8f89edc7d43ca439cdcf06deffd84271e408ed0d81

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
SignatureuxEpHzBXbey5lWIqkGmVH8LdQ8rR7+blJDOIwj/I2/sXi/9AXf78JNS7O2YNsJ4rLg+w5w8dfw4j0oxTVvFTAw==
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

2026-09-17T10:06:56.671859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077752
observed b852f0d2efbadc4bccbc7ec7d5370ee5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:56.653664ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077752/manifest.json
observed 4a12ed29f1d77e7d96313e8f89edc7d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:56.635194ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077752/publication.md
observed 5a9077782e44bf50cd68a029f3f0dd2c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:56.616377ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077752/publication.txt
observed 90969a750f1e75b59a2aadd5d10714d7...
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.