Pith Number

pith:J6EP3FTM

pith:2009:J6EP3FTMVUQ5O432IWGBCOA7SA

not attested not anchored not stored refs pending

Planetesimals to Protoplanets II: Effect of Debris on Terrestrial Planet Formation

D. C. Richardson, G. Lufkin, J. Haseltine, Z. M. Leinhardt

arxiv:0903.2354 v1 · 2009-03-13 · 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{J6EP3FTMVUQ5O432IWGBCOA7SA}

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	2026-05-18T02:14:28.539631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f88fd966cad21d7737a458c11381f900be5bc7ed7c25630c8c98c7c6091527c

Aliases

arxiv: 0903.2354 · arxiv_version: 0903.2354v1 · doi: 10.48550/arxiv.0903.2354 · pith_short_12: J6EP3FTMVUQ5 · pith_short_16: J6EP3FTMVUQ5O432 · pith_short_8: J6EP3FTM

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/J6EP3FTMVUQ5O432IWGBCOA7SA \
  | 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: 4f88fd966cad21d7737a458c11381f900be5bc7ed7c25630c8c98c7c6091527c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b02e777a29d4af5e76f3f93aeb535b3c8a1918129a1d269bff7802addd10330b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-03-13T10:49:20Z",
    "title_canon_sha256": "bdb1e62da8dbdcbf5c83202c8b854b74b3ad3b2a3da19edf703cae28e6e62122"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.2354",
    "kind": "arxiv",
    "version": 1
  }
}