Pith Number

pith:WSYB5ZOF

pith:2012:WSYB5ZOFPNIZBXA3PAP3DFTL6O

not attested not anchored not stored refs pending

Color Gradients in Galaxies Out to z~3: Dependence on Galaxy Properties

Jean-Paul Kneib (LAM), Niraj Welikala (IAS, Orsay)

arxiv:1202.0494 v1 · 2012-02-02 · 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{WSYB5ZOFPNIZBXA3PAP3DFTL6O}

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	2026-05-18T04:03:18.032025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4b01ee5c57b5190dc1b781fb1966bf3b6a5c5f1023ce59d10ea98b41967d2c9

Aliases

arxiv: 1202.0494 · arxiv_version: 1202.0494v1 · doi: 10.48550/arxiv.1202.0494 · pith_short_12: WSYB5ZOFPNIZ · pith_short_16: WSYB5ZOFPNIZBXA3 · pith_short_8: WSYB5ZOF

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/WSYB5ZOFPNIZBXA3PAP3DFTL6O \
  | 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: b4b01ee5c57b5190dc1b781fb1966bf3b6a5c5f1023ce59d10ea98b41967d2c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96accee9460fc23e74630521f5ed7fcc15345197535f6494620b9de9938c6c1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-02-02T17:17:13Z",
    "title_canon_sha256": "f746061f660a65a6e8e56244be33b01f85f09a02150b6dc0eacedd8637073b27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0494",
    "kind": "arxiv",
    "version": 1
  }
}