OpenTechnical

OT-2026-000057952

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, 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-2026-000057952) never changes.

Identity and time

Publication numberOT-2026-000057952 · never reused
Internal UUID01a0ae88-6ed9-7b81-bbd3-861c1bd5b9d4 · 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-2026-000057952
StatusPUBLIC

Content hashes

Canonical text62f64acfff0dffe780e6aaceb55ae653350dcaf5a055f7d943ccf3249da835cc
Markdown3842ae867a3c6a85af61b79d3516e0f570c1e2e2c8b0034c2cd0be26061a1f00
PDF
Publication pagecad1854c8ff1bf1d3784facda38e2ba6aeaa70c66aa59e7771ed781fd16caef9
Manifesta7fccdef0085ebe027052763061f4d3a1b41abd851835f68d50369079201e3db

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
SignatureeAh6UX06N7WMJCRCWIl/8Bk1KZlDKQ7BKwVwPRLEKK72uEj0w7CNrwBG5fyyiGk0ZEQpmdvMoZwsSGnFy9f1DQ==
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

2026-09-17T10:47:34.157161ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057952
observed cad1854c8ff1bf1d3784facda38e2ba6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:34.138297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057952/manifest.json
observed a7fccdef0085ebe027052763061f4d3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:34.116900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057952/publication.md
observed 3842ae867a3c6a85af61b79d3516e0f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:34.098506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057952/publication.txt
observed 62f64acfff0dffe780e6aaceb55ae653...
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.