Pith Number

pith:VC4VOB2D

pith:2011:VC4VOB2DBX5J32E2E5CYJ455YS

not attested not anchored not stored refs pending

Star formation in M33 (HerM33es)

B. Mookerjea, C. Buchbender, C. Kramer, D. Calzetti, J. Braine, M. Boquien, M. Relano, P. Gratier, S. Verley

arxiv:1105.5219 v1 · 2011-05-26 · 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{VC4VOB2DBX5J32E2E5CYJ455YS}

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	2026-05-18T02:01:50.595413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8b95707430dfa9de89a274584f3bdc49daa9e7571391a0d268be178bfa53681

Aliases

arxiv: 1105.5219 · arxiv_version: 1105.5219v1 · doi: 10.48550/arxiv.1105.5219 · pith_short_12: VC4VOB2DBX5J · pith_short_16: VC4VOB2DBX5J32E2 · pith_short_8: VC4VOB2D

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/VC4VOB2DBX5J32E2E5CYJ455YS \
  | 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: a8b95707430dfa9de89a274584f3bdc49daa9e7571391a0d268be178bfa53681

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd626e59c0bb1411afd3bc775653edc2c568fba85ce49a317e91217d5a7d2365",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-26T07:28:14Z",
    "title_canon_sha256": "a2f59eaabff0a2ee8bbde4b96c136be9842fa7d8674b4eecbb313c2d0f320827"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.5219",
    "kind": "arxiv",
    "version": 1
  }
}