Pith Number

pith:VA2VIBMO

pith:2009:VA2VIBMOCW64HTEVRTIDGMZ4MJ

not attested not anchored not stored refs pending

Causal Structures of Dynamic Black Holes

Beth A. Brown, James Lindesay

arxiv:0904.4192 v1 · 2009-04-27 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VA2VIBMOCW64HTEVRTIDGMZ4MJ}

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	2026-05-18T02:34:59.546878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a83554058e15bdc3cc958cd033333c6250f7afa593c86d6a6bdd5252f0d649ba

Aliases

arxiv: 0904.4192 · arxiv_version: 0904.4192v1 · doi: 10.48550/arxiv.0904.4192 · pith_short_12: VA2VIBMOCW64 · pith_short_16: VA2VIBMOCW64HTEV · pith_short_8: VA2VIBMO

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/VA2VIBMOCW64HTEVRTIDGMZ4MJ \
  | 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: a83554058e15bdc3cc958cd033333c6250f7afa593c86d6a6bdd5252f0d649ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76b60f6494fb2ed5a611dda7354435bed3f1c6510b7eac10ef2b1a2f1fc461f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-04-27T15:44:20Z",
    "title_canon_sha256": "d77c4e4ffbe1688312b6646fa726cca72daa12ba2781a4f43efa799f98247563"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4192",
    "kind": "arxiv",
    "version": 1
  }
}