Pith Number

pith:JWIFWIWG

pith:2012:JWIFWIWGCGJHNNGXCBFAKOT7VE

not attested not anchored not stored refs pending

Evolutionary synthesis models as a tool and guide towards the first galaxies

((1) Geneva Observatory, 2), (2) CNRS, CH, Daniel Schaerer (1, Fr), IRAP, Toulouse

arxiv:1202.4870 v1 · 2012-02-22 · 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{JWIFWIWGCGJHNNGXCBFAKOT7VE}

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	2026-05-18T01:58:22.516648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d905b22c6119276b4d7104a053a7fa910d11780562eb38de6225597c20b97ba

Aliases

arxiv: 1202.4870 · arxiv_version: 1202.4870v1 · doi: 10.48550/arxiv.1202.4870 · pith_short_12: JWIFWIWGCGJH · pith_short_16: JWIFWIWGCGJHNNGX · pith_short_8: JWIFWIWG

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/JWIFWIWGCGJHNNGXCBFAKOT7VE \
  | 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: 4d905b22c6119276b4d7104a053a7fa910d11780562eb38de6225597c20b97ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8c69333fd9f043bc158055b4bd78e5597bea21afdc38b8eeaa3341d851c674e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-02-22T10:31:30Z",
    "title_canon_sha256": "621190fbbcbf40110667634d4c028eb822ced355d64703c2aab4db06c932998a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4870",
    "kind": "arxiv",
    "version": 1
  }
}