Pith Number

pith:SOWXYISL

pith:2011:SOWXYISLWFVSS6BF2CG7TMZPA4

not attested not anchored not stored refs pending

The Ubiquity and Dual Nature of Ultra Compact Dwarfs

Mark A. Norris, Sheila J. Kannappan

arxiv:1102.0001 v2 · 2011-01-31 · 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{SOWXYISLWFVSS6BF2CG7TMZPA4}

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	2026-05-18T02:03:19.856331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93ad7c224bb16b297825d08df9b32f07266b8e3eb12a871f124864c33bff267f

Aliases

arxiv: 1102.0001 · arxiv_version: 1102.0001v2 · doi: 10.48550/arxiv.1102.0001 · pith_short_12: SOWXYISLWFVS · pith_short_16: SOWXYISLWFVSS6BF · pith_short_8: SOWXYISL

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/SOWXYISLWFVSS6BF2CG7TMZPA4 \
  | 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: 93ad7c224bb16b297825d08df9b32f07266b8e3eb12a871f124864c33bff267f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf761058fa8bfa3ec2d7c86b2e81bb7114797b26ea98f9161e18f23c3b397a84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-31T21:00:02Z",
    "title_canon_sha256": "6ccec121c33b44474b4f98aef9290c2f315e58e2d48fd8056c0e5c41939a55dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.0001",
    "kind": "arxiv",
    "version": 2
  }
}