Pith Number

pith:FEMEAOAV

pith:2017:FEMEAOAVOKT4QPYSNIVFWOYEBH

not attested not anchored not stored refs pending

Do Cosmic Rays Heat the Early Intergalactic Medium?

Andrea Ferrara, Benedetta Ciardi, Carmelo Evoli, G\"unter Sigl, Marta D'Angelo, Natacha Leite

arxiv:1703.09337 v1 · 2017-03-27 · 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{FEMEAOAVOKT4QPYSNIVFWOYEBH}

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	2026-05-18T00:44:33.357137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

291840381572a7c83f126a2a5b3b0409fbbb43036b86e78aa553c8f65e48c9ca

Aliases

arxiv: 1703.09337 · arxiv_version: 1703.09337v1 · doi: 10.48550/arxiv.1703.09337 · pith_short_12: FEMEAOAVOKT4 · pith_short_16: FEMEAOAVOKT4QPYS · pith_short_8: FEMEAOAV

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/FEMEAOAVOKT4QPYSNIVFWOYEBH \
  | 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: 291840381572a7c83f126a2a5b3b0409fbbb43036b86e78aa553c8f65e48c9ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3b58f33b044ccb814ecd97ed16b84523b8be483f8e664cf15a97a1bc4640124",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-03-27T23:10:50Z",
    "title_canon_sha256": "65485429f39306e860ac9059743033e04674aaa63d1704631dc80c1b5ae59d05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.09337",
    "kind": "arxiv",
    "version": 1
  }
}