Pith Number

pith:KRNGODJC

pith:2016:KRNGODJC3VNHF2KRPQHSFGSPGI

not attested not anchored not stored refs pending

Mapping kiloparsec-scale structures in the extended HI disc of the galaxy UGC 00439 by HI 21-cm absorption

John O'Meara, Neeraj Gupta, Raghunathan Srianand, Rajeshwari Dutta

arxiv:1601.00971 v1 · 2016-01-05 · astro-ph.GA · 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{KRNGODJC3VNHF2KRPQHSFGSPGI}

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	2026-05-18T01:22:19.431456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

545a670d22dd5a72e9517c0f229a4f321e923f51c6b72daeb53c840b58f7386b

Aliases

arxiv: 1601.00971 · arxiv_version: 1601.00971v1 · doi: 10.48550/arxiv.1601.00971 · pith_short_12: KRNGODJC3VNH · pith_short_16: KRNGODJC3VNHF2KR · pith_short_8: KRNGODJC

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/KRNGODJC3VNHF2KRPQHSFGSPGI \
  | 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: 545a670d22dd5a72e9517c0f229a4f321e923f51c6b72daeb53c840b58f7386b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4844893eba8421a27618f6b2a7a8a3457d59dbcf379087b53a82319d54d26f01",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-01-05T21:00:05Z",
    "title_canon_sha256": "f8df863df6f9bf4c928e8989701f1bf6ae32527c805baa9cc711173bf36fd538"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.00971",
    "kind": "arxiv",
    "version": 1
  }
}