OpenTechnical

OT-2026-000058020

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, sustained blow-off after set-down

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-2026-000058020) never changes.

Identity and time

Publication numberOT-2026-000058020 · never reused
Internal UUID01a0ae88-6ed9-7fab-8bce-fd607de2b99e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000058020
StatusPUBLIC

Content hashes

Canonical textea30331c78219220b477a4098f0703e4e75643fd9f768f012e63830ef21d3e4f
Markdown1cd74a048c1fbb727ca2219572b6546b9f378b9994eaa1ff8a669daa8633abeb
PDF
Publication page9a3111a94db2f6fb6141f16c653d118b18760ec4b8560546df49e84bc845985d
Manifest4e17a62b5aaa0a098c6a427dcae0b4e32b103f024f8877530bd22c975287391b

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
SignatureZCs8MUqJU+bbpy7mMzZ9sO7hqF2FKmgbHsf7RXw+/tWyn1753IttGvtUNoxMIAfvySE9YBPeIk5C+Qio+glyDg==
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

2026-09-17T10:47:39.555614ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058020
observed 9a3111a94db2f6fb6141f16c653d118b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:39.536639ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058020/manifest.json
observed 4e17a62b5aaa0a098c6a427dcae0b4e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:39.517870ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058020/publication.md
observed 1cd74a048c1fbb727ca2219572b6546b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:39.499642ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000058020/publication.txt
observed ea30331c78219220b477a4098f0703e4...
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.