Pith Number

pith:MMAIDFPW

pith:2001:MMAIDFPWYP6UF4LCLNFMHACN4W

not attested not anchored not stored refs pending

Towards Better Age Estimates for Stellar Populations: The Y^2 Isochrones for Solar Mixture

C. Ree, P. Demarque, S. Barnes, S. Yi, Th. Lejeune, Y.-C. Kim, Y.-W. Lee

arxiv:astro-ph/0104292 v3 · 2001-04-17 · astro-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{MMAIDFPWYP6UF4LCLNFMHACN4W}

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	2026-05-18T04:18:14.682923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63008195f6c3fd42f1625b4ac3804de59250d5f169bc24ddedccc2ca54f071aa

Aliases

arxiv: astro-ph/0104292 · arxiv_version: astro-ph/0104292v3 · doi: 10.48550/arxiv.astro-ph/0104292 · pith_short_12: MMAIDFPWYP6U · pith_short_16: MMAIDFPWYP6UF4LC · pith_short_8: MMAIDFPW

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/MMAIDFPWYP6UF4LCLNFMHACN4W \
  | 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: 63008195f6c3fd42f1625b4ac3804de59250d5f169bc24ddedccc2ca54f071aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d533b560e331639487c51c43dd72351100ffc3e77c138c6b01078e4b0058c516",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-04-17T19:08:35Z",
    "title_canon_sha256": "3679a04e05e8a9f23c1b368ef9a2adcc651fa77438df2db5124fb1ba68785b2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0104292",
    "kind": "arxiv",
    "version": 3
  }
}