Pith Number

pith:4YKG6GUB

pith:2009:4YKG6GUB2JXWTDXCTGNZ7OG5XT

not attested not anchored not stored refs pending

Astrophysical Smooth Particle Hydrodynamics

Stephan Rosswog

arxiv:0903.5075 v2 · 2009-03-29 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4YKG6GUB2JXWTDXCTGNZ7OG5XT}

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	2026-07-04T16:37:20.845177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6146f1a81d26f698ee2999b9fb8ddbcd043446c3d4044baa34b9449c639e054

Aliases

arxiv: 0903.5075 · arxiv_version: 0903.5075v2 · doi: 10.48550/arxiv.0903.5075 · pith_short_12: 4YKG6GUB2JXW · pith_short_16: 4YKG6GUB2JXWTDXC · pith_short_8: 4YKG6GUB

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/4YKG6GUB2JXWTDXCTGNZ7OG5XT \
  | 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: e6146f1a81d26f698ee2999b9fb8ddbcd043446c3d4044baa34b9449c639e054

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "456b1a1a095bb08cd36d257a5d38c1f4f9170047e2bb79d7e93189a459416766",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-03-29T17:37:31Z",
    "title_canon_sha256": "46c3c9f2835dc9b2bc29235d680124c3893598e62bf4c1e74b08a396b62dae6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.5075",
    "kind": "arxiv",
    "version": 2
  }
}