Pith Number

pith:B4WGDUGP

pith:2012:B4WGDUGPRGKPOMTJ55TM523J2F

not attested not anchored not stored refs pending

An Empirical Measure of the Rate of White Dwarf Cooling in 47 Tucanae

A. Dotter, H.B. Richer, J. Heyl, J. MacDonald, J.S. Kalirai, K.A. Woodley, P. Bergeron, P.B. Stetson, P.-E. Tremblay, R. Goldsbury, R.M. Rich

arxiv:1209.4901 v1 · 2012-09-21 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B4WGDUGPRGKPOMTJ55TM523J2F}

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	2026-05-18T01:54:20.011539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f2c61d0cf8994f73269ef66ceeb69d17042ac7aacef8751d1efea1a1f71f5d6

Aliases

arxiv: 1209.4901 · arxiv_version: 1209.4901v1 · doi: 10.48550/arxiv.1209.4901 · pith_short_12: B4WGDUGPRGKP · pith_short_16: B4WGDUGPRGKPOMTJ · pith_short_8: B4WGDUGP

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/B4WGDUGPRGKPOMTJ55TM523J2F \
  | 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: 0f2c61d0cf8994f73269ef66ceeb69d17042ac7aacef8751d1efea1a1f71f5d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "891f501cb68c950dd0d64d5aed2d263c377c7feeb18524ae7caa81fbfab0f7ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-09-21T20:00:01Z",
    "title_canon_sha256": "2db45ca7c46b2158c8501e6ec01b72f5f8f5b8cf05505da756b53ec7a2cbde74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4901",
    "kind": "arxiv",
    "version": 1
  }
}