Pith Number

pith:EWDIBYGD

pith:2013:EWDIBYGD5ST4NPLHKEU7DF44UE

not attested not anchored not stored refs pending

On black hole sub-systems in idealized nuclear star clusters

Douglas C. Heggie, Philip G. Breen

arxiv:1308.4641 v1 · 2013-08-21 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EWDIBYGD5ST4NPLHKEU7DF44UE}

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	2026-05-18T01:48:06.946611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

258680e0c3eca7c6bd675129f1979ca11301821a824fc1f00552668e81627832

Aliases

arxiv: 1308.4641 · arxiv_version: 1308.4641v1 · doi: 10.48550/arxiv.1308.4641 · pith_short_12: EWDIBYGD5ST4 · pith_short_16: EWDIBYGD5ST4NPLH · pith_short_8: EWDIBYGD

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/EWDIBYGD5ST4NPLHKEU7DF44UE \
  | 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: 258680e0c3eca7c6bd675129f1979ca11301821a824fc1f00552668e81627832

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b385ddc6a8f098d3e5ee508ac4bc824410933ec6b324da4c4fb29b952fe1488",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-08-21T17:39:57Z",
    "title_canon_sha256": "440e753d21be08784353f0d5ac2d33a84689c1858761655569189afc6118d611"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4641",
    "kind": "arxiv",
    "version": 1
  }
}