OpenTechnical

OT-2026-000072873

Publication integrity record

Foam pad vacuum gripper, three zone face, four outlet manifold, pump fed, supply line pressure sensor, 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-2026-000072873) never changes.

Identity and time

Publication numberOT-2026-000072873 · never reused
Internal UUID01a0ae92-89db-7dc3-a45c-cb12f5871691 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072873
StatusPUBLIC

Content hashes

Canonical text4ba3480cccea7594a9649d77d5b1ea7cf8db7b06ae819f90bb3a90366297f680
Markdown875b118cd39a78b9aec3347bd60f1eef5fe6e87473d1638df8402a6be7fc9b35
PDF
Publication page57b40be7e4d16fad02a2d1d5c1c932bedfd1957c73b5d146dd8d7dac7f8b5306
Manifestb6ae4bb29727009923184d6c74395bcaf5a2bc47be56acec9b5595e9b87cd5fe

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
SignatureElqMxGASbWFIBL1AJBktfgItKtlfdmYSU+GGOPrvOZSWJPfdl3PmueHR7qv8K37ger33MJSmfcyHssAOHc5vAg==
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

2026-09-17T10:22:48.076472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072873
observed 57b40be7e4d16fad02a2d1d5c1c932be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:48.059741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072873/manifest.json
observed b6ae4bb29727009923184d6c74395bca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:48.042769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072873/publication.md
observed 875b118cd39a78b9aec3347bd60f1eef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:48.026137ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072873/publication.txt
observed 4ba3480cccea7594a9649d77d5b1ea7c...
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.