Internet measurement · Evidence receipts

Network Evidence Observatory

A bounded evidence stream combining Tyche's public RIPE Atlas probe, Zeus1 dual-stack service observations, and RIPEstat/RIS/RPKI routing evidence. It records what was observed, when, and from which evidence layer—without turning a successful check or a signature into a claim of universal availability, authority, or security.

Public receipt generated 2026-08-13 17:26:03 UTC. The probe state is a dated observation; use the linked RIPE Atlas record for the current state.

Current evidence state

Probe 1016856

Connected

Public Atlas state at receipt time

Atlas pilot

32/32

Scheduled results passed narrow checks

Global campaign

19/20

Scheduled Atlas sources currently connected

Atlas availability

263/263

Valid public-API receipts connected

Dual-stack service

262

Complete seven-check DNS/HTTPS receipts

Latest routing receipt

6/6

Observed prefix/origin pairs RPKI-valid

Evidence pipeline

Independent layers remain separate in the receipt so that a reader can reproduce a narrow claim without treating one observation as proof of another.

1 · Measurement

RIPE Atlas

Probe availability and bounded public measurements provide dated observations from explicit vantage points.

2 · Routing

RIS and RPKI

Route-origin and ROA state add a distinct control-plane evidence layer without claiming that route validity proves service safety.

3 · Receipt

Canonical JSON + SHA-256

Allow-listed aggregates, source hashes, timestamps, and claim boundaries make the published snapshot byte-verifiable.

Public artifacts

The source collectors preserve their detailed snapshots on Zeus1. The public package contains only allow-listed aggregates and hashes; probe addresses, geometry, descriptions, credentials, and private keys are excluded.

External sources: public probe ↗, RIPE Atlas documentation ↗, RIPEstat Data API ↗, and RIS Live ↗.

Claim boundary

A successful observation is evidence from one vantage point and time, not proof of global availability.
Probe location and ASN fields are metadata and may be approximate; this public receipt excludes addresses and geometry.
TLS retrieval does not reproduce a complete browser transaction.
RPKI-valid means the observed origin/prefix pair matched a valid ROA; it is not a general security or authorization verdict.
Artifact hashes establish byte identity, not truth, authority, completeness, or legal effect.
RIPE Atlas participation is not RIPE NCC membership or LIR status.

Measurement programme

The one-off validation returned 32 successful rows from 4 scheduled sources. RIPE Atlas did not schedule one of the five requested probes, so the receipt reports four-source coverage rather than five. The observed charge was 848 credits, below the declared 1,060-credit ceiling.

The public 30-day campaign runs from 2026-08-13 10:25:00 UTC through 2026-09-12 10:25:00 UTC, using 20 sources selected across AFRINIC, APNIC, ARIN, LACNIC, and RIPE NCC service regions. Its live launch estimate was 19,520 credits per day, automatic top-up is disabled, and the stop time is fixed. The separate local baselines remain in progress through 2026-09-01 19:11:00 UTC.

The first bounded ten-minute result window returned 77/77 narrow successes across all eight definitions. This confirms result flow from sources scheduled in that window, not 20-probe completeness or long-run availability.

The latest captured window, ending 2026-08-13 17:24:40 UTC, returned 278/279 narrow successes. All eight definitions included rows from all 20 scheduled sources. Because this window is shorter than the six-hour definition interval, it is not a continuous-availability or full-interval completeness claim.

RIPE Atlas measurement 200375573 ↗ RIPE Atlas measurement 200375574 ↗ RIPE Atlas measurement 200375575 ↗ RIPE Atlas measurement 200375577 ↗ RIPE Atlas measurement 200375578 ↗ RIPE Atlas measurement 200375579 ↗ RIPE Atlas measurement 200375581 ↗ RIPE Atlas measurement 200375582 ↗

The campaign uses earned Atlas probe-host credits only. It does not use a member voucher and does not imply RIPE NCC membership or LIR status.