Pith Number

pith:C72OS5R2

pith:2015:C72OS5R2Z5Y77QHEQNQHH7TGR4

not attested not anchored not stored refs pending

Measuring star formation with resolved observations: the test case of M33

A. Boselli, C. Kramer, D. Calzetti, E. Rosolowsky, F. Combes, F. Israel, F. Tabatabaei, F. van der Tak, G. Stacey, J. Braine, M. Boquien, M. Relano, M. Xilouris, P. van der Werf, S. Aalto, S. Lord, S. Verley, V. Buat

arxiv:1502.01347 v1 · 2015-02-04 · 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{C72OS5R2Z5Y77QHEQNQHH7TGR4}

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	2026-05-18T01:59:37.597915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17f4e9763acf71ffc0e4836073fe668f16469aa189866a37e024d2732a6859cb

Aliases

arxiv: 1502.01347 · arxiv_version: 1502.01347v1 · doi: 10.48550/arxiv.1502.01347 · pith_short_12: C72OS5R2Z5Y7 · pith_short_16: C72OS5R2Z5Y77QHE · pith_short_8: C72OS5R2

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/C72OS5R2Z5Y77QHEQNQHH7TGR4 \
  | 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: 17f4e9763acf71ffc0e4836073fe668f16469aa189866a37e024d2732a6859cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e70639a0239cac53a6150ee3f65292f71854d9468b1cb60c2d8bc86a5aac712",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-04T21:00:13Z",
    "title_canon_sha256": "2007d06311a0510b080e147840afabb1c4e990e646513b570c4e27e59eaa4392"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01347",
    "kind": "arxiv",
    "version": 1
  }
}