OpenTechnical

OT-2026-000061516

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, sustained blow-off 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-2026-000061516) never changes.

Identity and time

Publication numberOT-2026-000061516 · never reused
Internal UUID01a0ae8b-7b44-7e92-b31c-e715dfd74aac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:11.808334Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061516
StatusPUBLIC

Content hashes

Canonical textf2ffb25f2013a48c4907e3c58ca18a4fd4c436f41f8dfef1915049ad751b4bfe
Markdownefd88d108e7d42276bb6d7403f32b95a82a64f8c58a3fdc3af0be7bbc25e304b
PDF
Publication page54f67a460606f9315cfeb917df0b7738f2fc3e3dce6858c1e4c3e2e524804c6b
Manifestcb580856741dc4ae09c9443e5eeae405c0b65e322e386532316ece3783880a0e

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
SignatureO0GzQs1qusi3Fy5F7E/ENZ+HWWLy8ZijueoXNqcgOodHUCnMYACmwrkLUHZ60BRoCLhZ6E6nMmVcR6cRI3tqCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:41:24.891726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061516
observed 54f67a460606f9315cfeb917df0b7738...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:24.872565ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061516/manifest.json
observed cb580856741dc4ae09c9443e5eeae405...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:24.853862ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061516/publication.md
observed efd88d108e7d42276bb6d7403f32b95a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:24.836081ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061516/publication.txt
observed f2ffb25f2013a48c4907e3c58ca18a4f...
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.