Pith Number

pith:KQTRKUW7

pith:2009:KQTRKUW7KYWQCWPJATJ2NY4Y2N

not attested not anchored not stored refs pending

A Method for Individual Source Brightness Estimation in Single- and Multi-band Data

C. L. Reichardt, D. P. Marrone, E. R. Switzer, J. D. Vieira, T. M. Crawford, W. L. Holzapfel

arxiv:0912.2341 v4 · 2009-12-11 · astro-ph.CO · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KQTRKUW7KYWQCWPJATJ2NY4Y2N}

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	2026-05-18T02:24:45.773967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54271552df562d0159e904d3a6e398d36f1726b934873b588b71bfea7d93d952

Aliases

arxiv: 0912.2341 · arxiv_version: 0912.2341v4 · doi: 10.48550/arxiv.0912.2341 · pith_short_12: KQTRKUW7KYWQ · pith_short_16: KQTRKUW7KYWQCWPJ · pith_short_8: KQTRKUW7

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/KQTRKUW7KYWQCWPJATJ2NY4Y2N \
  | 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: 54271552df562d0159e904d3a6e398d36f1726b934873b588b71bfea7d93d952

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1eb7dd9f4625d9cb84e2bfde7bda041c73b830207fb7eff20c808a555838046",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-11T20:56:39Z",
    "title_canon_sha256": "5e8264bab94f679e8bb3feceaee787359d2644521c6c167e68dd2718a284105d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2341",
    "kind": "arxiv",
    "version": 4
  }
}