Pith Number

pith:5QTEOFY4

pith:2009:5QTEOFY4VI6G4TTO6QEENNKZ4O

not attested not anchored not stored refs pending

Galactic Punctuated Equilibrium: How to Undermine Carter's Anthropic Argument in Astrobiology

Branislav Vukotic, Ivana Dragicevic, Milan M. Cirkovic

arxiv:0912.4980 v1 · 2009-12-30 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QTEOFY4VI6G4TTO6QEENNKZ4O}

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	2026-05-18T02:33:55.344869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec2647171caa3c6e4e6ef40846b559e3ac63ca58ad66b778c3575f918f10b259

Aliases

arxiv: 0912.4980 · arxiv_version: 0912.4980v1 · doi: 10.48550/arxiv.0912.4980 · pith_short_12: 5QTEOFY4VI6G · pith_short_16: 5QTEOFY4VI6G4TTO · pith_short_8: 5QTEOFY4

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/5QTEOFY4VI6G4TTO6QEENNKZ4O \
  | 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: ec2647171caa3c6e4e6ef40846b559e3ac63ca58ad66b778c3575f918f10b259

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ded1e080fb1f0a0640db011852f3fcf2fa6494622415cc45f7fbc816ede86ed3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-12-30T13:19:00Z",
    "title_canon_sha256": "8a3c3de5129ae2482bda03cfaa3d07a9f50d872f62e4d7d740f0711c6b846484"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4980",
    "kind": "arxiv",
    "version": 1
  }
}