Pith Number

pith:BTG6FPA6

pith:2012:BTG6FPA6SD5QWW34JMXAFHQML5

not attested not anchored not stored refs pending

From Gas to Stars over Cosmic Time

Mordecai-Mark Mac Low

arxiv:1210.7723 v1 · 2012-10-29 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTG6FPA6SD5QWW34JMXAFHQML5}

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	2026-05-18T01:53:36.280125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ccde2bc1e90fb0b5b7c4b2e029e0c5f6df6e3debe9f0548a612bc5c7e17f219

Aliases

arxiv: 1210.7723 · arxiv_version: 1210.7723v1 · doi: 10.48550/arxiv.1210.7723 · pith_short_12: BTG6FPA6SD5Q · pith_short_16: BTG6FPA6SD5QWW34 · pith_short_8: BTG6FPA6

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/BTG6FPA6SD5QWW34JMXAFHQML5 \
  | 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: 0ccde2bc1e90fb0b5b7c4b2e029e0c5f6df6e3debe9f0548a612bc5c7e17f219

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c0b58d7b53756d2deb6c935037ff99dfe5f0d256f2ee1db971b37a0289e8820",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-10-29T16:37:53Z",
    "title_canon_sha256": "deb4d9783515b78555533715ec5d708f32381f0534d21834529561a7f793d9da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7723",
    "kind": "arxiv",
    "version": 1
  }
}