Pith Number

pith:LE2QZD7J

pith:2019:LE2QZD7JT3OTSXGOIPDDODVFHJ

not attested not anchored not stored refs pending

Testing CIBER cosmic infrared background measurements and axionlike particles with observations of TeV blazars

G. B. Long, P. H. T. Tam, W. P. Lin, W. S. Zhu

arxiv:1912.05309 v4 · 2019-12-11 · astro-ph.HE · astro-ph.CO · 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{LE2QZD7JT3OTSXGOIPDDODVFHJ}

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	2026-07-05T02:59:01.567125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59350c8fe99edd395cce43c6370ea53a5296c417fc6cc19bf561940c4f02e9c9

Aliases

arxiv: 1912.05309 · arxiv_version: 1912.05309v4 · doi: 10.48550/arxiv.1912.05309 · pith_short_12: LE2QZD7JT3OT · pith_short_16: LE2QZD7JT3OTSXGO · pith_short_8: LE2QZD7J

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/LE2QZD7JT3OTSXGOIPDDODVFHJ \
  | 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: 59350c8fe99edd395cce43c6370ea53a5296c417fc6cc19bf561940c4f02e9c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31ff1e5d9c725502c716d0363bd9ef003ca2dc3667464aaf82d85c45a149e830",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-12-11T13:52:06Z",
    "title_canon_sha256": "d28ae914d114d6520c9d20bf2f17c02039715a33beda6600bfed096a5f6a067c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.05309",
    "kind": "arxiv",
    "version": 4
  }
}