Pith Number

pith:4VAF6ZYF

pith:2012:4VAF6ZYFCNT3PHX37GQST37IXZ

not attested not anchored not stored refs pending

The ARAUCARIA project: Grid-Based Quantitative Spectroscopic Study of Massive Blue Stars in NGC55

A. Herrero, F. Bresolin, G. Pietrzynski, M. A. Urbaneja, M. Garcia, N. Castro, R. -P. Kudritzki, S. Sim\'on-D\'iaz, W. Gieren

arxiv:1203.5115 v1 · 2012-03-22 · astro-ph.SR · 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{4VAF6ZYFCNT3PHX37GQST37IXZ}

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	2026-05-18T01:58:04.242535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5405f67051367b79efbf9a129efe8be6239935a7ee4e455968cfae22b17e564

Aliases

arxiv: 1203.5115 · arxiv_version: 1203.5115v1 · doi: 10.48550/arxiv.1203.5115 · pith_short_12: 4VAF6ZYFCNT3 · pith_short_16: 4VAF6ZYFCNT3PHX3 · pith_short_8: 4VAF6ZYF

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/4VAF6ZYFCNT3PHX37GQST37IXZ \
  | 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: e5405f67051367b79efbf9a129efe8be6239935a7ee4e455968cfae22b17e564

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68321715e223c29eebe90d3d48ebbbc360a51fde1cf3f1457c40ed175506e278",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-03-22T20:09:18Z",
    "title_canon_sha256": "046697eebdf916ae259f76f756be73551d080762cf6161eccf88874fe493c7c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5115",
    "kind": "arxiv",
    "version": 1
  }
}