Pith Number

pith:ECARFPVV

pith:2009:ECARFPVVELJA5D3IEMQAGZPJII

not attested not anchored not stored refs pending

Confronting Substellar Theoretical Models with Stellar Ages

Michael C. Liu (IfA/Hawaii), Michael J. Ireland (Sydney), Trent J. Dupuy

arxiv:0901.2672 v1 · 2009-01-18 · 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{ECARFPVVELJA5D3IEMQAGZPJII}

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	2026-05-18T02:14:56.989283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

208112beb522d20e8f6823200365e9423b36122ff86cb08ce9b5940867ae72dc

Aliases

arxiv: 0901.2672 · arxiv_version: 0901.2672v1 · doi: 10.48550/arxiv.0901.2672 · pith_short_12: ECARFPVVELJA · pith_short_16: ECARFPVVELJA5D3I · pith_short_8: ECARFPVV

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/ECARFPVVELJA5D3IEMQAGZPJII \
  | 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: 208112beb522d20e8f6823200365e9423b36122ff86cb08ce9b5940867ae72dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3490419769e6254c6c4520793621f3bed2432658134acbbf9fe6eb9cf565e2d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-01-18T01:28:05Z",
    "title_canon_sha256": "299295370697c252411bb2dea47338964dfbb820b6d339ae088ad6aad9b3d473"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2672",
    "kind": "arxiv",
    "version": 1
  }
}