Pith Number

pith:QTSJIGPR

pith:2009:QTSJIGPRCED44XKS3JYPNV7O5C

not attested not anchored not stored refs pending

EvoL: The new Padova T-SPH parallel code for cosmological simulations - I. Basic code: gravity and hydrodynamics

Cesare Chiosi (1) ((1) University of Padova, Department of Astronomy), Emiliano Merlin (1), Lorenzo Piovan (1), Tommaso Grassi (1), Umberto Buonomo (1)

arxiv:0912.1786 v1 · 2009-12-09 · astro-ph.CO · 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{QTSJIGPRCED44XKS3JYPNV7O5C}

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	2026-05-18T02:10:25.201009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84e49419f11107ce5d52da70f6d7eee8976a01fd701d485c743c3577966fccfb

Aliases

arxiv: 0912.1786 · arxiv_version: 0912.1786v1 · doi: 10.48550/arxiv.0912.1786 · pith_short_12: QTSJIGPRCED4 · pith_short_16: QTSJIGPRCED44XKS · pith_short_8: QTSJIGPR

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/QTSJIGPRCED44XKS3JYPNV7O5C \
  | 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: 84e49419f11107ce5d52da70f6d7eee8976a01fd701d485c743c3577966fccfb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ceada1bdee724532a35de3e8cdd84c3ca728ec81d80eddc37df8f3fa6380484",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-09T16:06:56Z",
    "title_canon_sha256": "1845cf7a96c3eb586bb5e89a5d5352b3f5db603d1d1d671be955a8cec2ce7475"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1786",
    "kind": "arxiv",
    "version": 1
  }
}