Pith Number

pith:KVEIAUD4

pith:2017:KVEIAUD4KRNQYL7XGSD7QPS7JL

not attested not anchored not stored refs pending

Recovering the HII region size statistics from 21-cm tomography

Benedetta Ciardi, Garrelt Mellema, Ilian T. Iliev, Keri L. Dixon, Koki Kakiichi, Leon V. E. Koopmans, Philipp Busch, Saleem Zaroubi, Suman Majumdar, Vibor Jelic

arxiv:1702.02520 v2 · 2017-02-08 · 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{KVEIAUD4KRNQYL7XGSD7QPS7JL}

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	2026-05-18T00:32:25.908889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

554880507c545b0c2ff73487f83e5f4ac7af8226b1fee18b296fffa9a00a7360

Aliases

arxiv: 1702.02520 · arxiv_version: 1702.02520v2 · doi: 10.48550/arxiv.1702.02520 · pith_short_12: KVEIAUD4KRNQ · pith_short_16: KVEIAUD4KRNQYL7X · pith_short_8: KVEIAUD4

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/KVEIAUD4KRNQYL7XGSD7QPS7JL \
  | 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: 554880507c545b0c2ff73487f83e5f4ac7af8226b1fee18b296fffa9a00a7360

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8ad31f90509703dedae9e504a2aaadbcaa456a28af90a57244e3559f9da946f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2017-02-08T16:58:05Z",
    "title_canon_sha256": "feb261cb3da19c197b1aa823ffd4a70ddce96a418497c5502397fb08dcdee018"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.02520",
    "kind": "arxiv",
    "version": 2
  }
}