OpenTechnical

OT-2026-000058560

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, 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-2026-000058560) never changes.

Identity and time

Publication numberOT-2026-000058560 · never reused
Internal UUID01a0ae88-f39c-7d59-a268-7ac7a1587db3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:43:25.998432Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000058560
StatusPUBLIC

Content hashes

Canonical text27a174d4f3574d3c50a62bb464c0ff135a4c8de8d9ac2f001a0ea2c3cbfc4929
Markdownbdb313a319a97b72571879d67d2ac708fcfa6f37707ff652e126187a1cda5e2f
PDF
Publication page671bacc8e510516041d70a9d74f30d8565b7591f5d13230cfaf1b2eabe00c140
Manifest71aa2dabd2c304a05e807fac5014a516fd14af4ae6690273dd0582f0c98d6674

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
SignatureUmn3hArhTo6iF7hgNaRBZLS0hkw8bZusdH3AFDWQfp49q6xYZ3oclZUuE8lDyvObLx2SwYt6W3HY50TtGSJgAw==
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

2026-09-17T10:47:02.494177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058560
observed 671bacc8e510516041d70a9d74f30d85...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:02.478112ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058560/manifest.json
observed 71aa2dabd2c304a05e807fac5014a516...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:02.460566ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058560/publication.md
observed bdb313a319a97b72571879d67d2ac708...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:02.443806ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058560/publication.txt
observed 27a174d4f3574d3c50a62bb464c0ff13...
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.