Pith Number

pith:36OQLTS2

pith:2017:36OQLTS2QYV6QDZD6ZSYZHVBCO

not attested not anchored not stored refs pending

Simplified galaxy formation with mesh-less hydrodynamics

Alessandro Lupi, Joseph Silk, Marta Volonteri

arxiv:1705.09285 v2 · 2017-05-24 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{36OQLTS2QYV6QDZD6ZSYZHVBCO}

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	2026-05-18T00:40:03.360400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df9d05ce5a862be80f23f6658c9ea113875bfedce8dedb19f774766a5fd782f3

Aliases

arxiv: 1705.09285 · arxiv_version: 1705.09285v2 · doi: 10.48550/arxiv.1705.09285 · pith_short_12: 36OQLTS2QYV6 · pith_short_16: 36OQLTS2QYV6QDZD · pith_short_8: 36OQLTS2

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/36OQLTS2QYV6QDZD6ZSYZHVBCO \
  | 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: df9d05ce5a862be80f23f6658c9ea113875bfedce8dedb19f774766a5fd782f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d653ebaf5acd6e5420abf7bbca1d376c9eb80df1d4b100a38aac4b580b6568c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-05-24T18:00:00Z",
    "title_canon_sha256": "a72f23a547f69550c91cdda230dbb7bca67da3f53fb35c78d56e447329f49432"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09285",
    "kind": "arxiv",
    "version": 2
  }
}