Pith Number

pith:BRYJLRRO

pith:2009:BRYJLRROAUZWE7FET63PX2LCEH

not attested not anchored not stored refs pending

The Origin of the 4.5 micron Excess from Dwarf Galaxies

Beverly J. Smith (ETSU), Mark Hancock (UC Riverside)

arxiv:0904.4046 v1 · 2009-04-26 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BRYJLRROAUZWE7FET63PX2LCEH}

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	2026-05-18T02:13:57.269671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c7095c62e0533627ca49fb6fbe96221d1d270f8ecced8df1617f6c0917192c7

Aliases

arxiv: 0904.4046 · arxiv_version: 0904.4046v1 · doi: 10.48550/arxiv.0904.4046 · pith_short_12: BRYJLRROAUZW · pith_short_16: BRYJLRROAUZWE7FE · pith_short_8: BRYJLRRO

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/BRYJLRROAUZWE7FET63PX2LCEH \
  | 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: 0c7095c62e0533627ca49fb6fbe96221d1d270f8ecced8df1617f6c0917192c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc5d77f5f58a30f5eab4cfa4b79be5b5b7b62ee712a77f32a3e0e04da23aa07d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-26T18:18:55Z",
    "title_canon_sha256": "00d281d68e5198edfdaa83bc456095f59816f2fbb1a23852b078045241826e2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4046",
    "kind": "arxiv",
    "version": 1
  }
}