Pith Number

pith:TXHMDKA2

pith:2013:TXHMDKA2PMI2FOZC6X32VZOFP6

not attested not anchored not stored refs pending

Gas surface density, star formation rate surface density, and the maximum mass of young star clusters in a disk galaxy. II. The grand-design galaxy M51

Bonn), Jan Pflamm-Altenburg (Bonn), Pavel Kroupa (Bonn), Rosa A. Gonzalez-Lopezlira (UNAM

arxiv:1305.0558 v1 · 2013-05-02 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TXHMDKA2PMI2FOZC6X32VZOFP6}

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	2026-05-18T01:50:13.049288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9dcec1a81a7b11a2bb22f5f7aae5c57fb707cd543ccd263fe2154a5aee0b0531

Aliases

arxiv: 1305.0558 · arxiv_version: 1305.0558v1 · doi: 10.48550/arxiv.1305.0558 · pith_short_12: TXHMDKA2PMI2 · pith_short_16: TXHMDKA2PMI2FOZC · pith_short_8: TXHMDKA2

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/TXHMDKA2PMI2FOZC6X32VZOFP6 \
  | 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: 9dcec1a81a7b11a2bb22f5f7aae5c57fb707cd543ccd263fe2154a5aee0b0531

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52f6d51108b9a01a1d8ba38bb37673d4c55a93ce4af36e41ce8e8f9961aecd35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-02T20:00:01Z",
    "title_canon_sha256": "179f070c60ff4d97093386b164b03fecfbde34b0b4974aa7412f47a467369c28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0558",
    "kind": "arxiv",
    "version": 1
  }
}