Pith Number

pith:334CXZH6

pith:1999:334CXZH6OERCYG7CDL7GP4MFIT

not attested not anchored not stored refs pending

Degeneracy of the b-boundary in General Relativity

Fredrik St{\aa}hl

arxiv:gr-qc/9906021 v1 · 1999-06-05 · 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{334CXZH6OERCYG7CDL7GP4MFIT}

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	2026-07-04T16:13:51.682983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

def82be4fe71222c1be21afe67f18544cd1f23959e3850defb210427ed4124a1

Aliases

arxiv: gr-qc/9906021 · arxiv_version: gr-qc/9906021v1 · doi: 10.48550/arxiv.gr-qc/9906021 · pith_short_12: 334CXZH6OERC · pith_short_16: 334CXZH6OERCYG7C · pith_short_8: 334CXZH6

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/334CXZH6OERCYG7CDL7GP4MFIT \
  | 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: def82be4fe71222c1be21afe67f18544cd1f23959e3850defb210427ed4124a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "692b924c2f8261f9f743b6b09eccd7f0efa312d68d18fa4fcd54dc0f177e72ad",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-06-05T11:31:17Z",
    "title_canon_sha256": "287c1b68346d2d1ce734332a4eac6c676813ef2623fee84d1f2c9deeffa016de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9906021",
    "kind": "arxiv",
    "version": 1
  }
}