Pith Number

pith:QQC4NI22

pith:2012:QQC4NI22JRIYCA5LMIM4VPOE2I

not attested not anchored not stored refs pending

Dynamics and Accretion of Planetesimals

Eiichiro Kokubo, Shigeru Ida

arxiv:1212.1558 v1 · 2012-12-07 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQC4NI22JRIYCA5LMIM4VPOE2I}

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	2026-05-18T03:38:56.939849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8405c6a35a4c518103ab6219cabdc4d21a5d4eccd5b6cbcefb51fa7dfbd759a2

Aliases

arxiv: 1212.1558 · arxiv_version: 1212.1558v1 · doi: 10.48550/arxiv.1212.1558 · pith_short_12: QQC4NI22JRIY · pith_short_16: QQC4NI22JRIYCA5L · pith_short_8: QQC4NI22

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/QQC4NI22JRIYCA5LMIM4VPOE2I \
  | 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: 8405c6a35a4c518103ab6219cabdc4d21a5d4eccd5b6cbcefb51fa7dfbd759a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46df41f16bd3fd4d565184674a9a79927a2df295cc0b0260d67403609636f067",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-12-07T08:50:02Z",
    "title_canon_sha256": "d9502e1616535b82c06be299e29b7c7d3d5b46fa1295b29c0b4ff8ae46d45089"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1558",
    "kind": "arxiv",
    "version": 1
  }
}