Pith Number

pith:SQZVCFWQ

pith:2021:SQZVCFWQKBDMNQZRLRAGMHQEPR

not attested not anchored not stored refs pending

Constraints on the abundance of primordial black holes with different mass distributions from lensing of fast radio bursts

He Gao, Huan Zhou, Lu Huang, Zhengxiang Li, Zhiqi Huang

arxiv:2103.08510 v3 · 2021-03-15 · astro-ph.CO · 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{SQZVCFWQKBDMNQZRLRAGMHQEPR}

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	2026-07-05T03:54:55.019806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94335116d05046c6c3315c40661e047c49b1bf0b7c6c6065931092b5b2687636

Aliases

arxiv: 2103.08510 · arxiv_version: 2103.08510v3 · doi: 10.48550/arxiv.2103.08510 · pith_short_12: SQZVCFWQKBDM · pith_short_16: SQZVCFWQKBDMNQZR · pith_short_8: SQZVCFWQ

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/SQZVCFWQKBDMNQZRLRAGMHQEPR \
  | 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: 94335116d05046c6c3315c40661e047c49b1bf0b7c6c6065931092b5b2687636

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84dc7c7cc9f20adc9241ccf3ddd6df9512dc93506814fccf49897041879dd642",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-03-15T16:34:06Z",
    "title_canon_sha256": "e2c0af6388a4159af7de2f8bb590f76f1c71040ab171d2c6baefee869b451a52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.08510",
    "kind": "arxiv",
    "version": 3
  }
}