Pith Number

pith:Z4NQD3SC

pith:2015:Z4NQD3SCIHPFVA5C7ESKWYOOAG

not attested not anchored not stored refs pending

Gamma-ray cosmology and fundamental physics with TeV blazars: results from 20 years of observations

David A. Williams, Jonathan Biteau

arxiv:1508.06248 v1 · 2015-08-25 · astro-ph.CO · astro-ph.HE · gr-qc · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z4NQD3SCIHPFVA5C7ESKWYOOAG}

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	2026-05-18T01:34:46.331624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf1b01ee4241de5a83a2f924ab61ce01a4e3b13368351cdc8d2e07bb64c75617

Aliases

arxiv: 1508.06248 · arxiv_version: 1508.06248v1 · doi: 10.48550/arxiv.1508.06248 · pith_short_12: Z4NQD3SCIHPF · pith_short_16: Z4NQD3SCIHPFVA5C · pith_short_8: Z4NQD3SC

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/Z4NQD3SCIHPFVA5C7ESKWYOOAG \
  | 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: cf1b01ee4241de5a83a2f924ab61ce01a4e3b13368351cdc8d2e07bb64c75617

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79fb7e2dff703c0f9ec2af8eda2c181fbd7f2eb79d8b4863f7ced2630bc0fb72",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-08-25T19:06:48Z",
    "title_canon_sha256": "afc2dc0be5e19ea4d26bbb773c38ca2753b97de28695bcf4c78f54bcfdfb98cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.06248",
    "kind": "arxiv",
    "version": 1
  }
}