Pith Number

pith:W56DM4N7

pith:2015:W56DM4N7K2GZ3GVO5Z6DAECCQ5

not attested not anchored not stored refs pending

Smoothed particle hydrodynamics simulations of gas and dust mixtures

Cathie J. Clarke, Debora Sijacki, Richard A. Booth

arxiv:1507.01007 v1 · 2015-07-03 · astro-ph.EP · 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{W56DM4N7K2GZ3GVO5Z6DAECCQ5}

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	2026-05-18T01:35:07.223790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b77c3671bf568d9d9aaeee7c30104287640f5612782c229dc8318af0e153a905

Aliases

arxiv: 1507.01007 · arxiv_version: 1507.01007v1 · doi: 10.48550/arxiv.1507.01007 · pith_short_12: W56DM4N7K2GZ · pith_short_16: W56DM4N7K2GZ3GVO · pith_short_8: W56DM4N7

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/W56DM4N7K2GZ3GVO5Z6DAECCQ5 \
  | 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: b77c3671bf568d9d9aaeee7c30104287640f5612782c229dc8318af0e153a905

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e39c2fc5f284c8e1febc0044c61377c6715ecb4990faf0166f1a78c78c0f452",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-07-03T20:01:19Z",
    "title_canon_sha256": "d9a131964347598d02295ff188f169ee95080e8b2f9d3ddc28c7d3dc93900d49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01007",
    "kind": "arxiv",
    "version": 1
  }
}