Pith Number

pith:S4FX4A5C

pith:2012:S4FX4A5CQ4NXOMJB7XD2WMATQM

not attested not anchored not stored refs pending

Building the cosmic distance scale: from Hipparcos to Gaia

Catherine Turon, Eduard Masana, Xavier Luri

arxiv:1202.3645 v1 · 2012-02-16 · astro-ph.IM · 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{S4FX4A5CQ4NXOMJB7XD2WMATQM}

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	2026-05-18T01:58:24.378856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

970b7e03a2871b773121fdc7ab3013830c859286b4cf52d946d3225cc34c8101

Aliases

arxiv: 1202.3645 · arxiv_version: 1202.3645v1 · doi: 10.48550/arxiv.1202.3645 · pith_short_12: S4FX4A5CQ4NX · pith_short_16: S4FX4A5CQ4NXOMJB · pith_short_8: S4FX4A5C

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/S4FX4A5CQ4NXOMJB7XD2WMATQM \
  | 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: 970b7e03a2871b773121fdc7ab3013830c859286b4cf52d946d3225cc34c8101

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f72895653e775392c3dcb7277cbdcc2ea3471df094fd050bb79194f37cdca4e3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-02-16T17:01:40Z",
    "title_canon_sha256": "81be1100f3b49b97c69ab92a389d8816def3aa93fe26ca621ce62392b509601f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3645",
    "kind": "arxiv",
    "version": 1
  }
}