Pith Number

pith:OVNSCFWT

pith:1999:OVNSCFWTHC65FD2OBPRUCBXWOU

not attested not anchored not stored refs pending

Black Holes and Wormholes in 2+1 Dimensions

Dieter Brill

arxiv:gr-qc/9904083 v2 · 1999-04-30 · 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{OVNSCFWTHC65FD2OBPRUCBXWOU}

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	2026-07-04T14:26:16.319492Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

755b2116d338bdd28f4e0be34106f675030b746776b777490add7a92899ae0a4

Aliases

arxiv: gr-qc/9904083 · arxiv_version: gr-qc/9904083v2 · doi: 10.48550/arxiv.gr-qc/9904083 · pith_short_12: OVNSCFWTHC65 · pith_short_16: OVNSCFWTHC65FD2O · pith_short_8: OVNSCFWT

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/OVNSCFWTHC65FD2OBPRUCBXWOU \
  | 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: 755b2116d338bdd28f4e0be34106f675030b746776b777490add7a92899ae0a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed3c6ec26799c6551831422cb1766064976a33c50e9a47f4a01c890730f51fce",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-04-30T19:15:15Z",
    "title_canon_sha256": "cd0dd54548b4f8b166b15670a16c17f8b94d248403ea1d8a4374daa5e509a72b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9904083",
    "kind": "arxiv",
    "version": 2
  }
}