OpenTechnical

OT-2026-000062377

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented 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-2026-000062377) never changes.

Identity and time

Publication numberOT-2026-000062377 · never reused
Internal UUID01a0ae8c-0abf-77a8-897a-065a5aadf16c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:48.542263Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062377
StatusPUBLIC

Content hashes

Canonical text7a3bda4694287e77bf6c097b5ed3f06251a17be865dd6b1187426ba16b837b2f
Markdown80c7e3f5679247e1a80dbca2b2c42f4a45b7f7b4b889ef9c67d03048bfe71048
PDF
Publication page342afd79e92361fdb62fc6a97588fe3fca95d39f17fafb58b15435da4c2100fe
Manifest8ce349792bf6cd8e7baaa33bceadfde372ab42ad32b5bb8d21e1edc94e892a18

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
SignatureecmGt8CmKKkv8xM2962MddXET85E9flD5u9SQhcHxmoeb69y7+T5ljuhYYnK6i70eQl0ksa99/4AiI2lTka8Cw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:39:41.801586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062377
observed 342afd79e92361fdb62fc6a97588fe3f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:41.782940ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062377/manifest.json
observed 8ce349792bf6cd8e7baaa33bceadfde3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:41.763199ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062377/publication.md
observed 80c7e3f5679247e1a80dbca2b2c42f4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:39:41.744895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062377/publication.txt
observed 7a3bda4694287e77bf6c097b5ed3f062...
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.