Pith Number

pith:KU2JSI5F

pith:2013:KU2JSI5FVRVLJDFBUQWLWYVR54

not attested not anchored not stored refs pending

Gamma-ray blazars near equipartition and the origin of the GeV spectral break in 3C 454.3

Andreas Zech, Benoit Lott, Catherine Boisson, Charles D. Dermer, Matteo Cerruti

arxiv:1305.4159 v1 · 2013-05-17 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KU2JSI5FVRVLJDFBUQWLWYVR54}

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	2026-05-18T03:20:58.141822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55349923a5ac6ab48ca1a42cbb62b1ef101e5054d3237660b75beeb8b6a6358d

Aliases

arxiv: 1305.4159 · arxiv_version: 1305.4159v1 · doi: 10.48550/arxiv.1305.4159 · pith_short_12: KU2JSI5FVRVL · pith_short_16: KU2JSI5FVRVLJDFB · pith_short_8: KU2JSI5F

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/KU2JSI5FVRVLJDFBUQWLWYVR54 \
  | 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: 55349923a5ac6ab48ca1a42cbb62b1ef101e5054d3237660b75beeb8b6a6358d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f29015384291a534ec2d1e951eeb03c4820556f787999e2c1699707084629488",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-05-17T19:08:26Z",
    "title_canon_sha256": "8defec9bbe63ae866e86449dc38ea7c96157636e6155f7e733d49d15f1af38d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4159",
    "kind": "arxiv",
    "version": 1
  }
}