Pith Number

pith:WXZA3PT3

pith:2012:WXZA3PT3PT7VFUWWO2VWH4UHFA

not attested not anchored not stored refs pending

Constraining the last 7 billion years of galaxy evolution in semi-analytic models

Darren J. Croton, Gregory B. Poole, Simon J. Mutch

arxiv:1210.3356 v2 · 2012-10-11 · 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{WXZA3PT3PT7VFUWWO2VWH4UHFA}

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	2026-05-18T01:53:56.561342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5f20dbe7b7cff52d2d676ab63f2872830a416f5d6c063c3caaf27c5071cc640

Aliases

arxiv: 1210.3356 · arxiv_version: 1210.3356v2 · doi: 10.48550/arxiv.1210.3356 · pith_short_12: WXZA3PT3PT7V · pith_short_16: WXZA3PT3PT7VFUWW · pith_short_8: WXZA3PT3

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/WXZA3PT3PT7VFUWWO2VWH4UHFA \
  | 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: b5f20dbe7b7cff52d2d676ab63f2872830a416f5d6c063c3caaf27c5071cc640

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fb31f8053e0d219e590b36e18fe0b3ceabf9e83561266c3387db50d9ac9cc57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-10-11T20:00:03Z",
    "title_canon_sha256": "cad92a173550467614e925ee2d3845bff9aad30a699d23f62fb9d976e4b7ef8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.3356",
    "kind": "arxiv",
    "version": 2
  }
}