OpenTechnical

OT-2026-000072674

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000072674) never changes.

Identity and time

Publication numberOT-2026-000072674 · never reused
Internal UUID01a0ae92-89d9-7583-af50-8dd2abfe43e0 · 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-2026-000072674
StatusPUBLIC

Content hashes

Canonical text1b6fb7b646c6d162e4fba7df1ebf7c0f4bb8cd9cd777c7b1fb78c7528b7dddb5
Markdownc7c626b42cf49b15a9da6b0a21729fe8033c18a55e605e3b689b082b6094bb78
PDF
Publication page8cec8af9957f20cba3a6e8a0cf2b08f114b56d421bcd83d38e5acd9e81ac051e
Manifestd1f092967f4e36905bc99e3eea4137b05c258a5e120ccc0c8a7b65ce545f53d2

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
SignatureJwL5dh48wOq/tMJ/9BkWFKq8bt4nNBXPRjy9OQZ6WnDwtCwUc52h5FdYmwOruV2HCU1h7PdmMb86EGmKikhmCg==
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

2026-09-17T10:22:32.510833ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072674
observed 8cec8af9957f20cba3a6e8a0cf2b08f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:32.493526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072674/manifest.json
observed d1f092967f4e36905bc99e3eea4137b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:32.478049ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072674/publication.md
observed c7c626b42cf49b15a9da6b0a21729fe8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:32.460780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072674/publication.txt
observed 1b6fb7b646c6d162e4fba7df1ebf7c0f...
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.