Pith Number

pith:THCTTXEW

pith:2009:THCTTXEWA7STNGLQEJZSURK2FP

not attested not anchored not stored refs pending

Cosmological formation and chemical evolution of an elliptical galaxy

A. Pipino, E. Colavitti, F. Matteucci

arxiv:0902.2768 v1 · 2009-02-16 · 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{THCTTXEWA7STNGLQEJZSURK2FP}

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	2026-05-18T02:14:47.523158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99c539dc9607e536997022732a455a2bfb1e7b1abb309b739cf3cab7c2b3a19d

Aliases

arxiv: 0902.2768 · arxiv_version: 0902.2768v1 · doi: 10.48550/arxiv.0902.2768 · pith_short_12: THCTTXEWA7ST · pith_short_16: THCTTXEWA7STNGLQ · pith_short_8: THCTTXEW

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/THCTTXEWA7STNGLQEJZSURK2FP \
  | 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: 99c539dc9607e536997022732a455a2bfb1e7b1abb309b739cf3cab7c2b3a19d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4935ef71dcd3cafd3d8103d681fce8f5c980c0e10b956f2d4b4b5b678450b44",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-02-16T20:07:48Z",
    "title_canon_sha256": "368d2eafd2406edf0e4495eeaf10026cf71ce2205531dda630751a2597e0e332"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2768",
    "kind": "arxiv",
    "version": 1
  }
}