Pith Number

pith:QMQ7VHDY

pith:2021:QMQ7VHDYRA3HW2GNLVVZAOOKCI

not attested not anchored not stored refs pending

A study of Intrinsic $\gamma$-ray Emission for {\it Fermi}/LAT-detected BL Lacs

H. S. Huang, J. H. Fan, J. H. Yang, J. W. Huang, W. X. Yang, X. H. Ye, X. T. Zeng, Y. H. Xuan, Z. Y. Pei, Z. Zhang

arxiv:2111.09001 v1 · 2021-11-17 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QMQ7VHDYRA3HW2GNLVVZAOOKCI}

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	2026-07-05T03:32:56.405067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8321fa9c7888367b68cd5d6b9039ca120217df7e449c7df81e911d166c274688

Aliases

arxiv: 2111.09001 · arxiv_version: 2111.09001v1 · doi: 10.48550/arxiv.2111.09001 · pith_short_12: QMQ7VHDYRA3H · pith_short_16: QMQ7VHDYRA3HW2GN · pith_short_8: QMQ7VHDY

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/QMQ7VHDYRA3HW2GNLVVZAOOKCI \
  | 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: 8321fa9c7888367b68cd5d6b9039ca120217df7e449c7df81e911d166c274688

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64d0dcca8712d1ce883ba6f3c6d18eb509fcac857dcf2bcb8221d7fa508bb878",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-11-17T09:41:54Z",
    "title_canon_sha256": "e12dcd9a987cf55a7bfc8181545793ac78d3ee55232ee1d238a480305be279ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.09001",
    "kind": "arxiv",
    "version": 1
  }
}