Pith Number

pith:SCHGXSWD

pith:2011:SCHGXSWDFUZW3CI4OOAC47OUEF

not attested not anchored not stored refs pending

The evolution of the surface brightness of a star cluster as a result of residual star-forming gas expulsion

F. Lueghausen, G. Parmentier, J. Pflamm-Altenburg, P. Kroupa

arxiv:1112.1068 v1 · 2011-12-05 · astro-ph.SR · 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{SCHGXSWDFUZW3CI4OOAC47OUEF}

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	2026-05-18T01:59:16.817118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

908e6bcac32d336d891c73802e7dd4215977f3e62f8897f1b3bbe7f19e340830

Aliases

arxiv: 1112.1068 · arxiv_version: 1112.1068v1 · doi: 10.48550/arxiv.1112.1068 · pith_short_12: SCHGXSWDFUZW · pith_short_16: SCHGXSWDFUZW3CI4 · pith_short_8: SCHGXSWD

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/SCHGXSWDFUZW3CI4OOAC47OUEF \
  | 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: 908e6bcac32d336d891c73802e7dd4215977f3e62f8897f1b3bbe7f19e340830

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e91a4e9c4e0971b25ca38075ae1a6f9f674ae1b4efee448c61a34eead47543b0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-12-05T21:00:00Z",
    "title_canon_sha256": "e87529591d89965c07c7e85d557a66016eb4e8c90b8b7185e9968f1d09447d13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.1068",
    "kind": "arxiv",
    "version": 1
  }
}