Pith Number

pith:42EECJOY

pith:2013:42EECJOYXHQY2OU56UQGBFC57F

not attested not anchored not stored refs pending

Particle Acceleration And Emission Processes In Mrk 421

Gang Cao, Jiancheng Wang

arxiv:1307.2040 v2 · 2013-07-08 · 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{42EECJOYXHQY2OU56UQGBFC57F}

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	2026-05-18T01:48:58.767671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6884125d8b9e18d3a9df52060945df951276e63d0ec27cd1bef75f64553c2e4

Aliases

arxiv: 1307.2040 · arxiv_version: 1307.2040v2 · doi: 10.48550/arxiv.1307.2040 · pith_short_12: 42EECJOYXHQY · pith_short_16: 42EECJOYXHQY2OU5 · pith_short_8: 42EECJOY

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/42EECJOYXHQY2OU56UQGBFC57F \
  | 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: e6884125d8b9e18d3a9df52060945df951276e63d0ec27cd1bef75f64553c2e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8be35c5e2c8693178990c53dd877d33eb8693279a9ce504600a73eb33f163fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-07-08T11:22:10Z",
    "title_canon_sha256": "b5388324f803439c227854c7a6750b121efd037f7130d87af930c39bae057a2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2040",
    "kind": "arxiv",
    "version": 2
  }
}