OpenTechnical

OT-2026-000073549

Publication integrity record

Four cup vacuum gripper, four zone face, six outlet manifold, single stage ejector, supply line pressure sensor, pulsed blow-off before 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-2026-000073549) never changes.

Identity and time

Publication numberOT-2026-000073549 · never reused
Internal UUID01a0ae92-efb9-76c5-abc4-71582379fdd5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073549
StatusPUBLIC

Content hashes

Canonical text61ff6bb492c256cccaad32a129b0434f404b1630db74961f18ad928ab9b3ef58
Markdown9a1ac197ce66268d9677eac978b4f56e3b2bca8a3aa30e28b2f984589d057e57
PDF
Publication paged9f99fa6b200d09e4f6728d2c0f79d835638a75a4adbff9fd6214c914abda388
Manifest15c128805c42e32f300c6b0d19a08310ad618a3ad1a3a6e48a887d9a662ef54f

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
SignatureqAs3exUek2ssWJDW4kGX8j3RuW3+k7XQpSuQ19HUeUtdJM8N+FUkh6aMcogDEgWkJ098zjRyslVn+ktt704lDQ==
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

2026-09-17T10:21:43.233940ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073549
observed d9f99fa6b200d09e4f6728d2c0f79d83...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:43.217847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073549/manifest.json
observed 15c128805c42e32f300c6b0d19a08310...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:43.201114ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073549/publication.md
observed 9a1ac197ce66268d9677eac978b4f56e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:43.185020ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073549/publication.txt
observed 61ff6bb492c256cccaad32a129b0434f...
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.