OpenTechnical

OT-2026-000089917

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, pump fed, manifold pressure sensor, sustained blow-off before set-down

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-2026-000089917) never changes.

Identity and time

Publication numberOT-2026-000089917 · never reused
Internal UUID01a0ae9c-428d-7640-a980-f67b04d21dc5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089917
StatusPUBLIC

Content hashes

Canonical text40c0ce472bc6de2166a6be40d233706ace961f4bd8650fcc1dfab3c4d8289b21
Markdowna8869281049796ef8886e0d02891f26deae3933117ba04728fc6d92b321b77af
PDF
Publication page95bcfc61f046d1149f4b7b791bcf65a5a5ad1b646b49f20589f0db9a1981ce57
Manifestd62aace1572404c3385c829c599a198292252a669d70da5b7e0be001d5035434

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
SignatureqC9bBCKqmNjDdO48vK5GFqdVpAqMoSbeVhzV8K0LpABuO60b7/DD1Oq5qybcC3acQNTs6dt8qK7xodWvM1PxBw==
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

2026-09-17T09:45:11.275632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089917
observed 95bcfc61f046d1149f4b7b791bcf65a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:11.256620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089917/manifest.json
observed d62aace1572404c3385c829c599a1982...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:11.239980ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089917/publication.md
observed a8869281049796ef8886e0d02891f26d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:11.220860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089917/publication.txt
observed 40c0ce472bc6de2166a6be40d233706a...
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.