OpenTechnical

OT-2026-000023472

Publication integrity record

Single bellows cup vacuum gripper, pump fed, 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-2026-000023472) never changes.

Identity and time

Publication numberOT-2026-000023472 · never reused
Internal UUID01a0ae70-7269-74cf-8905-ba92a0e0e83e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:40.056870Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023472
StatusPUBLIC

Content hashes

Canonical text0d5beca8179ad74d64a6bd63903cc2d1ec17dac9a86dedcf87969a6e3737b0a4
Markdown78554e8d52f759c18ffe633387e08ec4c0605478e40ead3c1e9ee7accaad87b3
PDF
Publication pageb760897ba4117496b00f8fbd75f83331b0dd009b2c6f9ff7a62373154fba6cdc
Manifest388b0228a937bb142831135c8fc3227a7f4df60410240966a7c3b6da13280327

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
Signature2cDxzmOwGn3W6q3zLfXsoipdqcYdut9DGpTBtJ5CR2ZHpOY5jHuk41MwfMqoR5bGbwqBkJLXN5UAiHzNo43wBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:51:41.746323ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023472
observed b760897ba4117496b00f8fbd75f83331...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:41.730031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023472/manifest.json
observed 388b0228a937bb142831135c8fc3227a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:41.714849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023472/publication.md
observed 78554e8d52f759c18ffe633387e08ec4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:41.691999ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023472/publication.txt
observed 0d5beca8179ad74d64a6bd63903cc2d1...
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.