Pith Number

pith:SN62OOVN

pith:2013:SN62OOVNJ6KPTX7DGE4ROCHDHL

not attested not anchored not stored refs pending

Dimensionless constants and cosmological measurements

James Rich

arxiv:1304.0577 v3 · 2013-04-02 · astro-ph.CO · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SN62OOVNJ6KPTX7DGE4ROCHDHL}

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	2026-05-18T03:27:02.926203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

937da73aad4f94f9dfe331391708e33af94cc158c4bac17c2aa2f8a59193282a

Aliases

arxiv: 1304.0577 · arxiv_version: 1304.0577v3 · doi: 10.48550/arxiv.1304.0577 · pith_short_12: SN62OOVNJ6KP · pith_short_16: SN62OOVNJ6KPTX7D · pith_short_8: SN62OOVN

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/SN62OOVNJ6KPTX7DGE4ROCHDHL \
  | 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: 937da73aad4f94f9dfe331391708e33af94cc158c4bac17c2aa2f8a59193282a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f940ab90766280f5115314aafbfadbc4656c565da26ad87e719e9637d91a4665",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-04-02T09:49:25Z",
    "title_canon_sha256": "e6a556231e6bc000a71656f82f4ded6bdbecf4c149ba026368e0bb529882b7d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0577",
    "kind": "arxiv",
    "version": 3
  }
}