Pith Number

pith:WWJ6Z2YZ

pith:2013:WWJ6Z2YZSHGQ74LIFXZOGWJUTH

not attested not anchored not stored refs pending

High-energy gamma-ray emission from Cyg X-1 measured by Fermi and its theoretical implications

Andrzej A. Zdziarski, Denys Malyshev, Maria Chernyakova

arxiv:1305.5920 v2 · 2013-05-25 · 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{WWJ6Z2YZSHGQ74LIFXZOGWJUTH}

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	2026-05-18T01:49:46.539358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b593eceb1991cd0ff1682df2e3593499e6cc3e6e4ff694201969b904780546ed

Aliases

arxiv: 1305.5920 · arxiv_version: 1305.5920v2 · doi: 10.48550/arxiv.1305.5920 · pith_short_12: WWJ6Z2YZSHGQ · pith_short_16: WWJ6Z2YZSHGQ74LI · pith_short_8: WWJ6Z2YZ

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/WWJ6Z2YZSHGQ74LIFXZOGWJUTH \
  | 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: b593eceb1991cd0ff1682df2e3593499e6cc3e6e4ff694201969b904780546ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "317fb09e83eaf1670360a0cd3b545b9e776aa975c7a70ae54a5517bab0b1385b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-05-25T13:40:48Z",
    "title_canon_sha256": "4fba6be3770e3f3043ee8d3570fd809124421825a8f16a4cdb1f1e20e2cbdf26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.5920",
    "kind": "arxiv",
    "version": 2
  }
}