Pith Number

pith:6HTLSU2Q

pith:2013:6HTLSU2Q74U52VVEZRHQC7C677

not attested not anchored not stored refs pending

Ionospheric observations of Underground Nuclear Explosions (UNE) using GPS and the Very Large Array

Dorota A. Grejner-Brzezinska, Jihye Park, Joseph Helmboldt, Ralph R. B. von Frese, Thomas Wilson

arxiv:1308.0722 v1 · 2013-08-03 · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6HTLSU2Q74U52VVEZRHQC7C677}

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

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	2026-05-18T03:16:48.389367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1e6b95350ff29dd56a4cc4f017c5effdd01b9b4e277ec1998a988715cb93d58

Aliases

arxiv: 1308.0722 · arxiv_version: 1308.0722v1 · doi: 10.48550/arxiv.1308.0722 · pith_short_12: 6HTLSU2Q74U5 · pith_short_16: 6HTLSU2Q74U52VVE · pith_short_8: 6HTLSU2Q

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/6HTLSU2Q74U52VVEZRHQC7C677 \
  | 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: f1e6b95350ff29dd56a4cc4f017c5effdd01b9b4e277ec1998a988715cb93d58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1bca79c26f9c7eb2789ff2eb2903b2ca75e4a95769bd76800dd2c7f2be6d09c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.space-ph",
    "submitted_at": "2013-08-03T16:55:29Z",
    "title_canon_sha256": "1bcbb0fa3939659ccf629142495824f0fc46eb0e0bef2a389de8c70653d7a7d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0722",
    "kind": "arxiv",
    "version": 1
  }
}