OpenTechnical

OT-2026-000057856

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single 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-2026-000057856) never changes.

Identity and time

Publication numberOT-2026-000057856 · never reused
Internal UUID01a0ae88-6ed8-7396-ac91-9e7949694e7b · 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-2026-000057856
StatusPUBLIC

Content hashes

Canonical text5ce2d448af7b67c0623af711ef1bddcc5537344f237e275f4e14d5da9d63750b
Markdown69592b8d12b4bea3d5614cc6b0fd094e613018622baa30cea039f9f1ddb136ca
PDF
Publication page79fc5c8f894758f9dd28bc65da2be24d51dc97d8b9a77e00addd4e8a3d6984fc
Manifestea614a771ff0a289cdcf57b67b560687c836c97addeee04b97546f1e2dbc462c

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
SignatureidQ4/RE8EJTRmes6Re+nD7h68NhEQ5qNFuNQaGPasJlo1cVqqV+YhOevKs8XToiEf9Cjf507yqUIm17b+QhqBA==
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

2026-09-17T10:47:26.238333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057856
observed 79fc5c8f894758f9dd28bc65da2be24d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:26.219384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057856/manifest.json
observed ea614a771ff0a289cdcf57b67b560687...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:26.200631ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057856/publication.md
observed 69592b8d12b4bea3d5614cc6b0fd094e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:26.181385ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057856/publication.txt
observed 5ce2d448af7b67c0623af711ef1bddcc...
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.