Pith Number

pith:4AF2RMWX

pith:2013:4AF2RMWXTO3QUHQBTM5PY2D2UX

not attested not anchored not stored refs pending

Two estimates of the distance to the Galactic centre

Charles Francis, Erik Anderson

arxiv:1309.2629 v3 · 2013-09-10 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4AF2RMWXTO3QUHQBTM5PY2D2UX}

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	2026-05-18T02:52:12.451355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e00ba8b2d79bb70a1e019b3afc687aa5c64655d7dece3075e66d1272a510d42a

Aliases

arxiv: 1309.2629 · arxiv_version: 1309.2629v3 · doi: 10.48550/arxiv.1309.2629 · pith_short_12: 4AF2RMWXTO3Q · pith_short_16: 4AF2RMWXTO3QUHQB · pith_short_8: 4AF2RMWX

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/4AF2RMWXTO3QUHQBTM5PY2D2UX \
  | 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: e00ba8b2d79bb70a1e019b3afc687aa5c64655d7dece3075e66d1272a510d42a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da080c9cc365fc3660ddb5de42d5b5d4cecb9acb970b8b94e343fe4b492831ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-09-10T06:39:44Z",
    "title_canon_sha256": "73460234e51dc1bbdad201a15f643e7e195cb4a362146d4b90546d0aea08d193"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2629",
    "kind": "arxiv",
    "version": 3
  }
}