Pith Number

pith:CVVW34IA

pith:2009:CVVW34IA6WXMPOKKUUJLVYUYRM

not attested not anchored not stored refs pending

Fermi/LAT discovery of gamma-ray emission from the flat-spectrum radio quasar PKS 1454-354

D.N. Burrows, et al, M. Hauser, M.M. Chester, P.G. Edwards, S. Wagner, The Fermi/LAT Collaboration: A. A. Abdo

arxiv:0903.1713 v1 · 2009-03-10 · astro-ph.HE · 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{CVVW34IA6WXMPOKKUUJLVYUYRM}

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	2026-05-18T03:48:02.780672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

156b6df100f5aec7b94aa512bae2988b3f680595c2768437d05f8c6269aee8e6

Aliases

arxiv: 0903.1713 · arxiv_version: 0903.1713v1 · doi: 10.48550/arxiv.0903.1713 · pith_short_12: CVVW34IA6WXM · pith_short_16: CVVW34IA6WXMPOKK · pith_short_8: CVVW34IA

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/CVVW34IA6WXMPOKKUUJLVYUYRM \
  | 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: 156b6df100f5aec7b94aa512bae2988b3f680595c2768437d05f8c6269aee8e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d8072b9b05394b0ca66614237f3c024f18287da4d4c435b637494de513805f5",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-03-10T08:56:50Z",
    "title_canon_sha256": "0032f411c8402e3aa7a3a6de3a7795220ddb669de7db9ba02f84c71b183a5e09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1713",
    "kind": "arxiv",
    "version": 1
  }
}