Pith Number

pith:Y2V2D2UF

pith:2018:Y2V2D2UFFS3IBYEMXKN5VVTHEV

not attested not anchored not stored refs pending

Cosmic horizon for GeV sources and photon-photon scattering

G.V. Vereshchagin

arxiv:1801.02368 v1 · 2018-01-08 · 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{Y2V2D2UFFS3IBYEMXKN5VVTHEV}

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	2026-05-18T00:23:27.807450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6aba1ea852cb680e08cba9bdad66725635309720828b40a872449aa0e6c76cd

Aliases

arxiv: 1801.02368 · arxiv_version: 1801.02368v1 · doi: 10.48550/arxiv.1801.02368 · pith_short_12: Y2V2D2UFFS3I · pith_short_16: Y2V2D2UFFS3IBYEM · pith_short_8: Y2V2D2UF

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/Y2V2D2UFFS3IBYEMXKN5VVTHEV \
  | 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: c6aba1ea852cb680e08cba9bdad66725635309720828b40a872449aa0e6c76cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "389a0ef4aa168595c0bc20e6b364ee7796143869a81621471d22241afbce1be0",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-01-08T10:16:22Z",
    "title_canon_sha256": "3dcbd66a0f71f81c2d49dfad7e21edcc36340002a2b26733d505340e571b628d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02368",
    "kind": "arxiv",
    "version": 1
  }
}