Pith Number

pith:2F6ANKEF

pith:2007:2F6ANKEF2U6ELRWTQKHEF6C343

not attested not anchored not stored refs pending

Population Synthesis Studies of Close Binary Systems Using a Variable Common Envelope Efficiency Parameter: I. Dependence upon Secondary Mass

Kevin P. Weiler, Michael Politano

arxiv:astro-ph/0702662 v2 · 2007-02-25 · 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{2F6ANKEF2U6ELRWTQKHEF6C343}

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	2026-05-18T04:29:06.234625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d17c06a885d53c45c6d3828e42f85be6d2a2ec8161efc6fc619c446746d33c3e

Aliases

arxiv: astro-ph/0702662 · arxiv_version: astro-ph/0702662v2 · doi: 10.48550/arxiv.astro-ph/0702662 · pith_short_12: 2F6ANKEF2U6E · pith_short_16: 2F6ANKEF2U6ELRWT · pith_short_8: 2F6ANKEF

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/2F6ANKEF2U6ELRWTQKHEF6C343 \
  | 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: d17c06a885d53c45c6d3828e42f85be6d2a2ec8161efc6fc619c446746d33c3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef0636570b3b3e6add50673ebff2cc01ef95c376e2b1c77fbc78882129c1b9cf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-02-25T01:11:00Z",
    "title_canon_sha256": "270a4d91e2cabd9ff36f79c6824b4df0f83e97b6c55129d9dcd720ada10975bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0702662",
    "kind": "arxiv",
    "version": 2
  }
}