Pith Number

pith:CYEVCAI4

pith:2010:CYEVCAI46JUIWMKGBYMVBOCAVP

not attested not anchored not stored refs pending

Testing a pulsating binary model for long secondary periods in red variables

B. W. Jiang, J. D. Nie, X. B. Zhang

arxiv:1003.2553 v2 · 2010-03-12 · 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{CYEVCAI46JUIWMKGBYMVBOCAVP}

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	2026-05-18T02:08:34.521908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

160951011cf2688b31460e1950b840abd85cdb348b8e7693b71bf460a75fa057

Aliases

arxiv: 1003.2553 · arxiv_version: 1003.2553v2 · doi: 10.48550/arxiv.1003.2553 · pith_short_12: CYEVCAI46JUI · pith_short_16: CYEVCAI46JUIWMKG · pith_short_8: CYEVCAI4

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/CYEVCAI46JUIWMKGBYMVBOCAVP \
  | 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: 160951011cf2688b31460e1950b840abd85cdb348b8e7693b71bf460a75fa057

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7490faea179fc0f8772f3d5cd271a8c9d83d21114a5a9cb3dfe0bc995686d31c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-03-12T14:49:33Z",
    "title_canon_sha256": "d10b35a50608e6d41001184fdfd228c0c8ffefe0db3c267d6e2f2c2444dd346f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.2553",
    "kind": "arxiv",
    "version": 2
  }
}