Pith Number

pith:PY5KYSPE

pith:2012:PY5KYSPE3RVT4W4HRE64H6FT2L

not attested not anchored not stored refs pending

Density of asteroids

Benoit Carry

arxiv:1203.4336 v1 · 2012-03-20 · 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{PY5KYSPE3RVT4W4HRE64H6FT2L}

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	2026-05-18T01:58:05.707200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e3aac49e4dc6b3e5b87893dc3f8b3d2cb2e6c8ce6c2f9e48497005527ce7084

Aliases

arxiv: 1203.4336 · arxiv_version: 1203.4336v1 · doi: 10.48550/arxiv.1203.4336 · pith_short_12: PY5KYSPE3RVT · pith_short_16: PY5KYSPE3RVT4W4H · pith_short_8: PY5KYSPE

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/PY5KYSPE3RVT4W4HRE64H6FT2L \
  | 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: 7e3aac49e4dc6b3e5b87893dc3f8b3d2cb2e6c8ce6c2f9e48497005527ce7084

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eb198bf33bcc7f5ce28a33a57b3c9692922c838f4c96cb512746f7a5e90bbdc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-03-20T08:22:43Z",
    "title_canon_sha256": "410674d026ee9d0099486ffb416aa2b3519444ec2ebc2bb0347d8e991b46fb77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4336",
    "kind": "arxiv",
    "version": 1
  }
}