Pith Number

pith:QG4Z6L7Y

pith:2015:QG4Z6L7YYJP4AC43DWWFNPDXHW

not attested not anchored not stored refs pending

Asteroid family ages

Andrea Milani, Federica Spoto, Zoran Knezevic

arxiv:1504.05461 v2 · 2015-04-21 · 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{QG4Z6L7YYJP4AC43DWWFNPDXHW}

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	2026-05-18T01:55:00.782579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81b99f2ff8c25fc00b9b1dac56bc773d856608539456af2ae2342059f0022915

Aliases

arxiv: 1504.05461 · arxiv_version: 1504.05461v2 · doi: 10.48550/arxiv.1504.05461 · pith_short_12: QG4Z6L7YYJP4 · pith_short_16: QG4Z6L7YYJP4AC43 · pith_short_8: QG4Z6L7Y

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/QG4Z6L7YYJP4AC43DWWFNPDXHW \
  | 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: 81b99f2ff8c25fc00b9b1dac56bc773d856608539456af2ae2342059f0022915

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d55ab4cc84c689ff88e556e0fed6559f39ca23f4ce43f3842def100ade01d1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-04-21T15:15:05Z",
    "title_canon_sha256": "4a0ee8d4e6d2ee7c56296f80ad9dc06e32e2c8f3f220357f148651e58fc3d854"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05461",
    "kind": "arxiv",
    "version": 2
  }
}