Pith Number

pith:IS7NZWRP

pith:2012:IS7NZWRP3QARRZOQ2IRCG6ZUIP

not attested not anchored not stored refs pending

Cyanogen in NGC 1851 RGB and AGB Stars: Quadrimodal Distributions

C. Sneden, D. Yong, E. C. Wylie-de Boer, F. Grundahl, G. C. Angelou, J. C. Lattanzio, R. J. Stancliffe, S. L. Martell, S. W. Campbell, V. D'Orazi

arxiv:1211.2052 v1 · 2012-11-09 · 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{IS7NZWRP3QARRZOQ2IRCG6ZUIP}

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	2026-05-18T01:53:17.667996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44bedcda2fdc0118e5d0d222237b3443ed83292b61c43cef8a218df6464341cd

Aliases

arxiv: 1211.2052 · arxiv_version: 1211.2052v1 · doi: 10.48550/arxiv.1211.2052 · pith_short_12: IS7NZWRP3QAR · pith_short_16: IS7NZWRP3QARRZOQ · pith_short_8: IS7NZWRP

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/IS7NZWRP3QARRZOQ2IRCG6ZUIP \
  | 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: 44bedcda2fdc0118e5d0d222237b3443ed83292b61c43cef8a218df6464341cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "230387bbc93f59a44335b279da511b7d8c9fa2be5428d2954fd7ba6ead6b96e8",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-09T06:25:28Z",
    "title_canon_sha256": "64ff1d88692803d7119c074e614e0a54f75068511283892dd52e6669ead96c4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2052",
    "kind": "arxiv",
    "version": 1
  }
}