Pith Number

pith:2WXFYKRB

pith:2016:2WXFYKRBJWY3ILJ3DXMCDX2VD5

not attested not anchored not stored refs pending

Radio Sources in the NCP Region Observed with the 21 Centimeter Array

Haiguang Xu, Jun-Hua Gu, Melanie Johnston-Hollitt, Qian Zheng, Xiang-Ping Wu

arxiv:1602.06624 v3 · 2016-02-22 · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2WXFYKRBJWY3ILJ3DXMCDX2VD5}

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	2026-05-18T00:55:14.148288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5ae5c2a214db1b42d3b1dd821df551f648a408d776c5e238597808ebd00c8a7

Aliases

arxiv: 1602.06624 · arxiv_version: 1602.06624v3 · doi: 10.48550/arxiv.1602.06624 · pith_short_12: 2WXFYKRBJWY3 · pith_short_16: 2WXFYKRBJWY3ILJ3 · pith_short_8: 2WXFYKRB

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/2WXFYKRBJWY3ILJ3DXMCDX2VD5 \
  | 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: d5ae5c2a214db1b42d3b1dd821df551f648a408d776c5e238597808ebd00c8a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "341b76a056c2900732c62c339aede86c334725e32bee9d9d63f09e7f4ccb48e8",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-02-22T01:53:28Z",
    "title_canon_sha256": "5614881f017be350689ce832c6f55e8d8c8bbac7c4758b455380199fca55801f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.06624",
    "kind": "arxiv",
    "version": 3
  }
}