Pith Number

pith:AO5A2C4N

pith:2010:AO5A2C4NGTNIZRCYOCTPHST2PV

not attested not anchored not stored refs pending

On the Spectral Break in the Fermi-LAT Spectrum of 3C 454.3

Charles D. Dermer, Justin D. Finke

arxiv:1004.1418 v1 · 2010-04-08 · 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{AO5A2C4NGTNIZRCYOCTPHST2PV}

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	2026-05-18T01:18:10.529193Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03ba0d0b8d34da8cc45870a6f3ca7a7d6a1b865fa43d3bc38b1a2c7b73ace4d5

Aliases

arxiv: 1004.1418 · arxiv_version: 1004.1418v1 · doi: 10.48550/arxiv.1004.1418 · pith_short_12: AO5A2C4NGTNI · pith_short_16: AO5A2C4NGTNIZRCY · pith_short_8: AO5A2C4N

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/AO5A2C4NGTNIZRCYOCTPHST2PV \
  | 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: 03ba0d0b8d34da8cc45870a6f3ca7a7d6a1b865fa43d3bc38b1a2c7b73ace4d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "302e3a32098b14a76b8f2e748450ed6ee2c169b6726392bd358a3156478fac03",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-04-08T20:07:05Z",
    "title_canon_sha256": "b802ad6dc11f78c6c1bc254b652fe7b24273016e2802a018ac2f4895df877f4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1418",
    "kind": "arxiv",
    "version": 1
  }
}