Pith Number

pith:7DCGDK7I

pith:2021:7DCGDK7ITXBS7G2WVOGKZXQIK3

not attested not anchored not stored refs pending

Multi-band Emission up to PeV Energy from the Crab Nebula in a Spatially Dependent Lepto-hadronic Model

Bi-Wen Bao, Fang-Wu Lu, Li Zhang, Qi-Yong Peng

arxiv:2112.14939 v1 · 2021-12-30 · 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{7DCGDK7ITXBS7G2WVOGKZXQIK3}

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	2026-07-05T03:57:19.487889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8c461abe89dc32f9b56ab8cacde0856fff3db8ae84a3be993afb1e36283490d

Aliases

arxiv: 2112.14939 · arxiv_version: 2112.14939v1 · doi: 10.48550/arxiv.2112.14939 · pith_short_12: 7DCGDK7ITXBS · pith_short_16: 7DCGDK7ITXBS7G2W · pith_short_8: 7DCGDK7I

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/7DCGDK7ITXBS7G2WVOGKZXQIK3 \
  | 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: f8c461abe89dc32f9b56ab8cacde0856fff3db8ae84a3be993afb1e36283490d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8dfe84521af6dcbeb575a2c1ea95386cede6ecd4b270620e62cf7779e124aec3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-12-30T06:35:02Z",
    "title_canon_sha256": "05c419764e66295bb4d21b1c8b1dd85ce2f537de4c5756ec29f06b3cb6d06b45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.14939",
    "kind": "arxiv",
    "version": 1
  }
}