Pith Number

pith:LGXYL5MY

pith:2014:LGXYL5MYZQCMDN7EGXH2XKYA7Z

not attested not anchored not stored refs pending

Why are some BL Lacs detected by \fermi, but others not ?

D. R. Jiang, Liang Chen, Minfeng Gu, Zhongzu Wu

arxiv:1401.0652 v1 · 2014-01-03 · 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{LGXYL5MYZQCMDN7EGXH2XKYA7Z}

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	2026-05-18T01:45:34.232882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59af85f598cc04c1b7e435cfabab00fe692bf9110f432c67c80b5d094a811a87

Aliases

arxiv: 1401.0652 · arxiv_version: 1401.0652v1 · doi: 10.48550/arxiv.1401.0652 · pith_short_12: LGXYL5MYZQCM · pith_short_16: LGXYL5MYZQCMDN7E · pith_short_8: LGXYL5MY

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/LGXYL5MYZQCMDN7EGXH2XKYA7Z \
  | 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: 59af85f598cc04c1b7e435cfabab00fe692bf9110f432c67c80b5d094a811a87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de91d9c468096532ada46547e2229cd85dedc336dceda5d378d1bea7f8e53ed5",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-01-03T13:58:21Z",
    "title_canon_sha256": "2defe985b9155203c7169d1847a01fa4a1bc60b38eb6169472df6124fdb00356"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0652",
    "kind": "arxiv",
    "version": 1
  }
}