Pith Number

pith:EWIGS7WB

pith:2018:EWIGS7WB3QPOEOMFOGPHJG2JUP

not attested not anchored not stored refs pending

The contribution of faint AGNs to the ionizing background at z~4

A. Bonchi, A. Fontana, A. Grazian, A. Marchetti, A. Rossi, B. Garilli, C. Scarlata, E. Giallongo, E. Merlin, E. Vanzella, F. Civano, F. Cusano, F. Fiore, F. Fontanot, K. Boutsia, L. Pentericci, M. Brusa, M. Castellano, M. Faccini, N. Menci, P. Santini, R. Carini, R. Speziali, S. Cristiani

arxiv:1802.01953 v1 · 2018-02-06 · 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{EWIGS7WB3QPOEOMFOGPHJG2JUP}

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	2026-05-18T00:14:46.316260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2590697ec1dc1ee23985719e749b49a3ca710fc77027b375707cc2e6eed8e42e

Aliases

arxiv: 1802.01953 · arxiv_version: 1802.01953v1 · doi: 10.48550/arxiv.1802.01953 · pith_short_12: EWIGS7WB3QPO · pith_short_16: EWIGS7WB3QPOEOMF · pith_short_8: EWIGS7WB

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/EWIGS7WB3QPOEOMFOGPHJG2JUP \
  | 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: 2590697ec1dc1ee23985719e749b49a3ca710fc77027b375707cc2e6eed8e42e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71c194a2307143b0bdc5e6184b662408c224825ca4d94d445b1ff69a05044cfc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-06T14:11:05Z",
    "title_canon_sha256": "81bda7faf21da3eac99b8cf79ed854e10cabe3ce2483a1d3f2f1a9b0e311d454"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.01953",
    "kind": "arxiv",
    "version": 1
  }
}