Pith Number

pith:A4QVAAEG

pith:2004:A4QVAAEGHHOUH25V57HYR45FBK

not attested not anchored not stored refs pending

Neutrino production in UHECR proton interactions in the infrared background

Todor Stanev

arxiv:astro-ph/0404535 v1 · 2004-04-27 · astro-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{A4QVAAEGHHOUH25V57HYR45FBK}

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	2026-05-18T04:22:19.600345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

072150008639dd43ebb5efcf88f3a50a9338eba823ef5c1316767c8f6f49edde

Aliases

arxiv: astro-ph/0404535 · arxiv_version: astro-ph/0404535v1 · doi: 10.48550/arxiv.astro-ph/0404535 · pith_short_12: A4QVAAEGHHOU · pith_short_16: A4QVAAEGHHOUH25V · pith_short_8: A4QVAAEG

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/A4QVAAEGHHOUH25V57HYR45FBK \
  | 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: 072150008639dd43ebb5efcf88f3a50a9338eba823ef5c1316767c8f6f49edde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6a5560f4eaad9c767417def79834f540755fcb26db8dd05d54db5a7e64b125f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-04-27T15:33:50Z",
    "title_canon_sha256": "a75306c2eda964cf2f7bc34bff9f4b28a0137bddf4b244d30f67d33b7b3451d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0404535",
    "kind": "arxiv",
    "version": 1
  }
}