Pith Number

pith:BB4244RJ

pith:2019:BB4244RJDQ34ZWPCZG4HWMUXKB

not attested not anchored not stored refs pending

Fluid statics of a self-gravitating perfect-gas isothermal sphere

Arcangelo Labianca, Domenico Giordano, Felice Iavernaro, Francesca Mazzia, Lorenzo Pisani, Monica Lazzo, Pierluigi Amodio

arxiv:1903.04044 v1 · 2019-03-10 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BB4244RJDQ34ZWPCZG4HWMUXKB}

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	2026-05-17T23:43:23.127939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0879ae72291c37ccd9e2c9b87b3297504dbe1ff70dabab00c3239f6d99614ea6

Aliases

arxiv: 1903.04044 · arxiv_version: 1903.04044v1 · doi: 10.48550/arxiv.1903.04044 · pith_short_12: BB4244RJDQ34 · pith_short_16: BB4244RJDQ34ZWPC · pith_short_8: BB4244RJ

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/BB4244RJDQ34ZWPCZG4HWMUXKB \
  | 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: 0879ae72291c37ccd9e2c9b87b3297504dbe1ff70dabab00c3239f6d99614ea6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b48286e427fbed985c285259c63581a2a1fe9e688a04b33d3f73ae6886eaaccd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2019-03-10T19:08:57Z",
    "title_canon_sha256": "9c097f049c6d2494f90c86e2c0119968f371ac719339773a7c11ec8100c3d4df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04044",
    "kind": "arxiv",
    "version": 1
  }
}