Pith Number

pith:4LD3R2H2

pith:2001:4LD3R2H2JUEX3RXFFVPRLNQVXG

not attested not anchored not stored refs pending

High-velocity white dwarfs: thick disk, not dark matter

I. Neill Reid, Kailash C. Sahu, Suzanne L. Hawley

arxiv:astro-ph/0104110 v2 · 2001-04-05 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4LD3R2H2JUEX3RXFFVPRLNQVXG}

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	2026-07-04T16:23:00.299379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2c7b8e8fa4d097dc6e52d5f15b615b98747f088d4a6c6c2dee3d5829f95e343

Aliases

arxiv: astro-ph/0104110 · arxiv_version: astro-ph/0104110v2 · doi: 10.48550/arxiv.astro-ph/0104110 · pith_short_12: 4LD3R2H2JUEX · pith_short_16: 4LD3R2H2JUEX3RXF · pith_short_8: 4LD3R2H2

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/4LD3R2H2JUEX3RXFFVPRLNQVXG \
  | 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: e2c7b8e8fa4d097dc6e52d5f15b615b98747f088d4a6c6c2dee3d5829f95e343

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7588b002b35bd53b6269eed7555dca9cd1720f7c9a7639afa45e9f467c017486",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-04-05T23:11:29Z",
    "title_canon_sha256": "d2b5f5416a752117df902d734aaacc4ced6f39512da9cb2e83887450e3d2a510"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0104110",
    "kind": "arxiv",
    "version": 2
  }
}