Pith Number

pith:7RIIPQZ2

pith:2007:7RIIPQZ25ED5TUZ5MNPOLWMUCD

not attested not anchored not stored refs pending

The Spectral Index Distribution of EGRET Blazars: Prospects for GLAST

Tonia M. Venters, U. Chicago), Vasiliki Pavlidou (KICP

arxiv:0704.2417 v1 · 2007-04-18 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7RIIPQZ25ED5TUZ5MNPOLWMUCD}

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	2026-07-04T15:44:15.118906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc5087c33ae907d9d33d635ee5d99410d7287ae7db43b24335431d9433ed3db7

Aliases

arxiv: 0704.2417 · arxiv_version: 0704.2417v1 · doi: 10.48550/arxiv.0704.2417 · pith_short_12: 7RIIPQZ25ED5 · pith_short_16: 7RIIPQZ25ED5TUZ5 · pith_short_8: 7RIIPQZ2

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/7RIIPQZ25ED5TUZ5MNPOLWMUCD \
  | 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: fc5087c33ae907d9d33d635ee5d99410d7287ae7db43b24335431d9433ed3db7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d080fb6f1fcc036d97ba31ef3f4d8ff0d1e34764fe9e960d768f8619d39da7b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-18T20:01:06Z",
    "title_canon_sha256": "a419c4d45a25ecfb8fea7fcacd56f40b8fdfad16561901c088fddba8f306e6a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.2417",
    "kind": "arxiv",
    "version": 1
  }
}