Pith Number

pith:QCPRI3HR

pith:2013:QCPRI3HRLNGSXQV6TKRHRMLPWN

not attested not anchored not stored refs pending

Forthcoming mutual events of planets and astrometric radio sources

S. Tsekmejster, V. L'vov, Z. Malkin

arxiv:1304.3983 v1 · 2013-04-15 · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QCPRI3HRLNGSXQV6TKRHRMLPWN}

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	2026-05-18T03:05:26.137205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

809f146cf15b4d2bc2be9aa278b16fb35278c56551fb46dce2127c55fe646814

Aliases

arxiv: 1304.3983 · arxiv_version: 1304.3983v1 · doi: 10.48550/arxiv.1304.3983 · pith_short_12: QCPRI3HRLNGS · pith_short_16: QCPRI3HRLNGSXQV6 · pith_short_8: QCPRI3HR

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/QCPRI3HRLNGSXQV6TKRHRMLPWN \
  | 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: 809f146cf15b4d2bc2be9aa278b16fb35278c56551fb46dce2127c55fe646814

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ebf8e4763ba8094f1acfb590fe3871c5152b38b15fec59e41b5e4ac6a12f16b",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-04-15T05:20:21Z",
    "title_canon_sha256": "7f32405d130a08cf43d66fa41b8399d71edc6cc8baf29f82523e43ab79e51ce3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3983",
    "kind": "arxiv",
    "version": 1
  }
}