Pith Number

pith:VHPLKV6I

pith:2025:VHPLKV6I6QR73BFVJPNBVP4VWF

not attested not anchored not stored refs pending

H I absorption line and anomalous dispersion in the radio pulses of PSR B1937+21

Bojun Wang, Heng Xu, Jiangwei Xu, Jiguang Lu, Jinchen Jiang, Kejia Lee, Peng Jiang, Renxin Xu, Shunshun Cao, Siyuan Chen, WeiCong Jing, Yanjun Guo, Zihan Xue

arxiv:2502.19934 v2 · 2025-02-27 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VHPLKV6I6QR73BFVJPNBVP4VWF}

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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.

Cited by

1 paper in Pith

Characterizing Pulsar Distances Using HI Kinematics

Receipt and verification

First computed	2026-07-05T11:45:31.858829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9deb557c8f423fd84b54bda1abf95b151c86872d24e29f76e4f755938d55d85

Aliases

arxiv: 2502.19934 · arxiv_version: 2502.19934v2 · doi: 10.48550/arxiv.2502.19934 · pith_short_12: VHPLKV6I6QR7 · pith_short_16: VHPLKV6I6QR73BFV · pith_short_8: VHPLKV6I

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/VHPLKV6I6QR73BFVJPNBVP4VWF \
  | 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: a9deb557c8f423fd84b54bda1abf95b151c86872d24e29f76e4f755938d55d85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7789e0040bfe8a629487d5ffe8ddd0f176d18ed9b9c8273d38c233d8ca2f77c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-02-27T10:02:11Z",
    "title_canon_sha256": "2085fbecd07729b7eaed40c1bcf191ca79fc4faf231b3527adc46aa2b2f81041"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.19934",
    "kind": "arxiv",
    "version": 2
  }
}