Pith Number

pith:BOQ4XUDQ

pith:2020:BOQ4XUDQ642XPW5I53OOJUI4JC

not attested not anchored not stored refs pending

Fused Low-Earth-Orbit GNSS

Peter A. Iannucci, Todd E. Humphreys

arxiv:2009.12334 v4 · 2020-09-25 · eess.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BOQ4XUDQ642XPW5I53OOJUI4JC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T04:04:35.812451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ba1cbd070f73577dba8eedce4d11c48aa15b3b6e1de24d7c8982e282dbfb6ff

Aliases

arxiv: 2009.12334 · arxiv_version: 2009.12334v4 · doi: 10.48550/arxiv.2009.12334 · pith_short_12: BOQ4XUDQ642X · pith_short_16: BOQ4XUDQ642XPW5I · pith_short_8: BOQ4XUDQ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/BOQ4XUDQ642XPW5I53OOJUI4JC \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 0ba1cbd070f73577dba8eedce4d11c48aa15b3b6e1de24d7c8982e282dbfb6ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42817e9c66d462a25f86e5c40999a7fa4f526be7a89e320e66501c4358194931",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2020-09-25T16:51:06Z",
    "title_canon_sha256": "dd01f35cc309ed5940845a133413b982cf3f4d2c3683290b1a0c228e521d14e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.12334",
    "kind": "arxiv",
    "version": 4
  }
}