Pith Number

pith:ZEIKEC4C

pith:2020:ZEIKEC4CASNDA5EKUUGWL5FMD4

not attested not anchored not stored refs pending

Cosmology-insensitive estimate of IGM baryon mass fraction from five localized fast radio bursts

Bing Zhang, He Gao, Jun-Jie Wei, Yuan-Pei Yang, Zhengxiang Li, Zong-Hong Zhu

arxiv:2004.08393 v1 · 2020-04-17 · astro-ph.HE · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZEIKEC4CASNDA5EKUUGWL5FMD4}

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	2026-07-05T01:05:47.668737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c910a20b82049a30748aa50d65f4ac1f312a7029d42f684d3ff25dede75e97bd

Aliases

arxiv: 2004.08393 · arxiv_version: 2004.08393v1 · doi: 10.48550/arxiv.2004.08393 · pith_short_12: ZEIKEC4CASND · pith_short_16: ZEIKEC4CASNDA5EK · pith_short_8: ZEIKEC4C

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/ZEIKEC4CASNDA5EKUUGWL5FMD4 \
  | 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: c910a20b82049a30748aa50d65f4ac1f312a7029d42f684d3ff25dede75e97bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97cd974ff42a338ef01eb99241947bf11ed98c716260d43cabc9a9a9774a7569",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-04-17T18:00:00Z",
    "title_canon_sha256": "6cc80a76c6209526d59216b432c58125dadaed1424f50b480c65e1ffa5a5bf1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.08393",
    "kind": "arxiv",
    "version": 1
  }
}