Pith Number

pith:542ULKDC

pith:2013:542ULKDCZCIH24576O4J5HH5HD

not attested not anchored not stored refs pending

Simulations of protostellar collapse using multigroup radiation hydrodynamics. II. The second collapse

B. Commercon, E. Audit, F. Delahaye, G. Chabrier, J. Ferguson, J. Masson, N. Vaytet

arxiv:1307.1010 v1 · 2013-07-03 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{542ULKDCZCIH24576O4J5HH5HD}

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	2026-05-18T01:49:00.224006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef3545a862c8907d73bff3b89e9cfd38c683a4cda5fa761d6c0ebad5afb1f8c8

Aliases

arxiv: 1307.1010 · arxiv_version: 1307.1010v1 · doi: 10.48550/arxiv.1307.1010 · pith_short_12: 542ULKDCZCIH · pith_short_16: 542ULKDCZCIH2457 · pith_short_8: 542ULKDC

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/542ULKDCZCIH24576O4J5HH5HD \
  | 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: ef3545a862c8907d73bff3b89e9cfd38c683a4cda5fa761d6c0ebad5afb1f8c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d774acacfe47ad18e92d139daf6f44947c1be41d7622b091c3f51ad8a6a37d90",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-07-03T13:37:38Z",
    "title_canon_sha256": "70c4bea9e7c53669af82886c7df1338ffc31608188c1c68b2d71da1f3cc06cac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.1010",
    "kind": "arxiv",
    "version": 1
  }
}