Pith Number

pith:D3DPPYZG

pith:2013:D3DPPYZGSDA7OIMBS5OITIL26Q

not attested not anchored not stored refs pending

Fitting Formulae for the Effects of Binary Interactions on Lick Indices and Colours of Stellar Populations

Zhanwen Han, Zhongmu Li

arxiv:1307.0188 v1 · 2013-06-30 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D3DPPYZGSDA7OIMBS5OITIL26Q}

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	2026-05-18T01:49:06.162294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ec6f7e32690c1f72181975c89a17af4143755607734ed9834e337bc51c2ff78

Aliases

arxiv: 1307.0188 · arxiv_version: 1307.0188v1 · doi: 10.48550/arxiv.1307.0188 · pith_short_12: D3DPPYZGSDA7 · pith_short_16: D3DPPYZGSDA7OIMB · pith_short_8: D3DPPYZG

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/D3DPPYZGSDA7OIMBS5OITIL26Q \
  | 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: 1ec6f7e32690c1f72181975c89a17af4143755607734ed9834e337bc51c2ff78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f24b078bd7383dad00d53f610e3587fdf7a82e8ed42fe7ffba28a3ae73a61469",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-06-30T09:28:51Z",
    "title_canon_sha256": "6e98fa8a60eeda4c497d9c5aa15c2fd200984267c425b5ed72cf0b2d279aaa3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.0188",
    "kind": "arxiv",
    "version": 1
  }
}