OpenTechnical

OT-2026-000061253

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, 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-2026-000061253) never changes.

Identity and time

Publication numberOT-2026-000061253 · never reused
Internal UUID01a0ae8b-1382-72bf-94d9-633906e47fb0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:45:45.252443Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061253
StatusPUBLIC

Content hashes

Canonical text6cfe84cbda37b6ecc364bd3bc881044f70eb0c50ed279c73cc2f34b6adc079c5
Markdownc3742cc4b1e15ea45008d86a94880fad4a3062360d45e4f1d108b7e84fdbe89a
PDF
Publication page7ee6704d206d309b4a2b8c3600abf0bc1374754ae263b535b4996c8158224ac9
Manifest425fb5e03d4cbed083d77c5675c5f16d16a99f662195a75d5c6498d94725521e

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
SignatureEH9LOiH+wiGZlmrmSKNaJgCG9y+FFLVYiILRuBy7M0+uXFfj7fhey1p/QJTYmPnsecdS0lnfLN2iFj12jMxlCA==
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

2026-09-17T10:42:40.156994ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061253
observed 7ee6704d206d309b4a2b8c3600abf0bc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:40.139913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061253/manifest.json
observed 425fb5e03d4cbed083d77c5675c5f16d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:40.119817ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061253/publication.md
observed c3742cc4b1e15ea45008d86a94880fad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:42:40.100692ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061253/publication.txt
observed 6cfe84cbda37b6ecc364bd3bc881044f...
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.