Pith Number

pith:2QWEOEWT

pith:2017:2QWEOEWT5GHDOIISP4A4DVSDVE

not attested not anchored not stored refs pending

The extragalactic background light revisited and the cosmic photon-photon opacity

Alberto Franceschini, Giulia Rodighiero

arxiv:1705.10256 v1 · 2017-05-26 · 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{2QWEOEWT5GHDOIISP4A4DVSDVE}

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.

Cited by

1 paper in Pith

Intrinsic GeV-TeV gamma-ray emission from EHSP blazars

Receipt and verification

First computed	2026-05-18T00:40:57.521528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d42c4712d3e98e3721127f01c1d643a91f3e80613961b06eb67d98da04bf4445

Aliases

arxiv: 1705.10256 · arxiv_version: 1705.10256v1 · doi: 10.48550/arxiv.1705.10256 · pith_short_12: 2QWEOEWT5GHD · pith_short_16: 2QWEOEWT5GHDOIIS · pith_short_8: 2QWEOEWT

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/2QWEOEWT5GHDOIISP4A4DVSDVE \
  | 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: d42c4712d3e98e3721127f01c1d643a91f3e80613961b06eb67d98da04bf4445

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "480f74d34bdc25f5f76e953626d0d435675463f49c06f4e59572afbb91d011fb",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-05-26T07:20:18Z",
    "title_canon_sha256": "7a7eb3608548a0bef5d5ea9f0a8256cd6cffeb167a241051f1cebeeb97938928"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.10256",
    "kind": "arxiv",
    "version": 1
  }
}