Pith Number

pith:KP3ZG4DB

pith:2019:KP3ZG4DB4E7O66N6USVEIO6IW6

not attested not anchored not stored refs pending

Fitting dark matter mass with the radio continuum spectral data of the Ophiuchus cluster

Chak Man Lee, Man Ho Chan

arxiv:1908.03712 v1 · 2019-08-10 · 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{KP3ZG4DB4E7O66N6USVEIO6IW6}

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	2026-07-04T23:53:17.572349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53f7937061e13eef79bea4aa443bc8b799800534ca2833afc0e8aeb2bb75eee2

Aliases

arxiv: 1908.03712 · arxiv_version: 1908.03712v1 · doi: 10.48550/arxiv.1908.03712 · pith_short_12: KP3ZG4DB4E7O · pith_short_16: KP3ZG4DB4E7O66N6 · pith_short_8: KP3ZG4DB

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/KP3ZG4DB4E7O66N6USVEIO6IW6 \
  | 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: 53f7937061e13eef79bea4aa443bc8b799800534ca2833afc0e8aeb2bb75eee2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c6b8528f6efc52e36218b78ad7a1051ace7f826168ea29cf38889eddde81f5e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-08-10T08:50:30Z",
    "title_canon_sha256": "7aece7059de9ed55227b1fd97ce8d2d4b331b6d239e15cbdf11877121430d364"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03712",
    "kind": "arxiv",
    "version": 1
  }
}