Pith Number

pith:RO3AHPIC

pith:2011:RO3AHPIC6QZ3UQOEDZERL7Y6M4

not attested not anchored not stored refs pending

Principal Component Analysis on Chemical Abundances Spaces

Chiaki Kobayashi, Gayandhi M. De Silva, Joss Bland-Hawthorn, Kenneth C. Freeman, Yuan-Sen Ting

arxiv:1112.3207 v1 · 2011-12-14 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RO3AHPIC6QZ3UQOEDZERL7Y6M4}

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	2026-05-18T03:59:39.789076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bb603bd02f433ba41c41e4915ff1e6736330c0c890d59ddbac65ec60ec892ab

Aliases

arxiv: 1112.3207 · arxiv_version: 1112.3207v1 · doi: 10.48550/arxiv.1112.3207 · pith_short_12: RO3AHPIC6QZ3 · pith_short_16: RO3AHPIC6QZ3UQOE · pith_short_8: RO3AHPIC

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/RO3AHPIC6QZ3UQOEDZERL7Y6M4 \
  | 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: 8bb603bd02f433ba41c41e4915ff1e6736330c0c890d59ddbac65ec60ec892ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "306625069b58de9073326bc53af191663bb9f5d6167e0391b58a226ce203565b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-12-14T13:44:00Z",
    "title_canon_sha256": "aa61513d4fccb57ea3506d301492d554fd5c4d58f911ac2bd4a3e1071ea4658a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3207",
    "kind": "arxiv",
    "version": 1
  }
}