Pith Number

pith:K67YJVPI

pith:2009:K67YJVPIF3ND3Q5GOT4P55KZA7

not attested not anchored not stored refs pending

Evolution of binary stars and its implications for evolutionary population synthesis

F. Zhang, Ph. Podsiadlowski, X. Chen, Z. Han

arxiv:0910.2546 v1 · 2009-10-14 · astro-ph.SR · 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{K67YJVPIF3ND3Q5GOT4P55KZA7}

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	2026-05-18T02:11:23.822095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57bf84d5e82eda3dc3a674f8fef55907de135b770c7d7bdb5cddc5a990fc9eee

Aliases

arxiv: 0910.2546 · arxiv_version: 0910.2546v1 · doi: 10.48550/arxiv.0910.2546 · pith_short_12: K67YJVPIF3ND · pith_short_16: K67YJVPIF3ND3Q5G · pith_short_8: K67YJVPI

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/K67YJVPIF3ND3Q5GOT4P55KZA7 \
  | 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: 57bf84d5e82eda3dc3a674f8fef55907de135b770c7d7bdb5cddc5a990fc9eee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c642f91d5ea529d14a8fce9e8b0a1e4ff9f20173c862a4760cb2ab70f7b4601",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-10-14T08:05:44Z",
    "title_canon_sha256": "812993b828d3c6c3c4194da0c9e8c7e3e67a403d5afeb8a8bc4fb1326024ded8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.2546",
    "kind": "arxiv",
    "version": 1
  }
}