Pith Number

pith:2R2GHC3I

pith:2012:2R2GHC3IL4ASNQTOEIXEJEH6FN

not attested not anchored not stored refs pending

Testing Diagnostics of Nuclear Activity and Star Formation in Galaxies at z>1

(2) Caltech, (3) Kentucky, (4) CEA/Saclay, (5) Arizona, (6) UCLA, (7) UCM), Benjamin J. Weiner (5), Dale D. Kocevski (3), David C. Koo (1), Guillermo Barro (1), Ian S. McLean (6), Jonathan R. Trump (1), Nicholas P. Konidaris (2), Pablo G. Perez-Gonzalez (7), Renbin Yan (3), S. M. Faber (1), Stephanie Juneau (4), Victor Villar (7) ((1) UCO/Lick

arxiv:1212.2218 v2 · 2012-12-10 · 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{2R2GHC3IL4ASNQTOEIXEJEH6FN}

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	2026-05-18T01:52:40.341551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d474638b685f0126c26e222e4490fe2b5a255ec85a056e996c347231b2721f2d

Aliases

arxiv: 1212.2218 · arxiv_version: 1212.2218v2 · doi: 10.48550/arxiv.1212.2218 · pith_short_12: 2R2GHC3IL4AS · pith_short_16: 2R2GHC3IL4ASNQTO · pith_short_8: 2R2GHC3I

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/2R2GHC3IL4ASNQTOEIXEJEH6FN \
  | 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: d474638b685f0126c26e222e4490fe2b5a255ec85a056e996c347231b2721f2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a19ae5a5b45be497b6958776bc378e439389079a00019264f1051c2c0d5b9662",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-12-10T21:01:22Z",
    "title_canon_sha256": "8b1f9fab21f9b0f3e2e9710e9deb8729612eac90763450d6645fe04acd489eab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2218",
    "kind": "arxiv",
    "version": 2
  }
}