Pith Number

pith:ALCXRVCF

pith:2013:ALCXRVCFZDNT76D5PSAW6HWXSN

not attested not anchored not stored refs pending

Spherical steady accretion flows -- dependence on the cosmological constant, exact isothermal solutions and applications to cosmology

Edward Malec, Janusz Karkowski, Patryk Mach

arxiv:1309.1252 v1 · 2013-09-05 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ALCXRVCFZDNT76D5PSAW6HWXSN}

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	2026-05-18T03:07:22.722367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02c578d445c8db3ff87d7c816f1ed7937daf6be2c669d543089132e7e27f033a

Aliases

arxiv: 1309.1252 · arxiv_version: 1309.1252v1 · doi: 10.48550/arxiv.1309.1252 · pith_short_12: ALCXRVCFZDNT · pith_short_16: ALCXRVCFZDNT76D5 · pith_short_8: ALCXRVCF

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/ALCXRVCFZDNT76D5PSAW6HWXSN \
  | 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: 02c578d445c8db3ff87d7c816f1ed7937daf6be2c669d543089132e7e27f033a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72d3632505168ebf4404aa9f8fed153c27020472f67b784aeb53be7228fd886e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-09-05T07:51:19Z",
    "title_canon_sha256": "3ee635a3ef4b92c0f9754321923e0bd1453a84ee8e22aeffc39befcf2fc465d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1252",
    "kind": "arxiv",
    "version": 1
  }
}