Pith Number

pith:6XUFSNN4

pith:2000:6XUFSNN4DNABKBQADXCF3ERM4C

not attested not anchored not stored refs pending

Constraints on Area Variables in Regge Calculus

Jarmo Makela, Ruth M. Williams

arxiv:gr-qc/0011006 v2 · 2000-11-02 · 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{6XUFSNN4DNABKBQADXCF3ERM4C}

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	2026-05-18T02:37:36.268102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5e85935bc1b401506001dc45d922ce0af921266929609b63130f5f5f179ad2d

Aliases

arxiv: gr-qc/0011006 · arxiv_version: gr-qc/0011006v2 · doi: 10.48550/arxiv.gr-qc/0011006 · pith_short_12: 6XUFSNN4DNAB · pith_short_16: 6XUFSNN4DNABKBQA · pith_short_8: 6XUFSNN4

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/6XUFSNN4DNABKBQADXCF3ERM4C \
  | 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: f5e85935bc1b401506001dc45d922ce0af921266929609b63130f5f5f179ad2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74f5305c587353adeb4c670a2d6d528d1b4b93e49fde9f0fb07ec2b3c6cd0574",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2000-11-02T13:19:45Z",
    "title_canon_sha256": "5b1a25d78bc54387e1a934b49c710a68f134ad55b6b32a1fbf047945d390d073"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0011006",
    "kind": "arxiv",
    "version": 2
  }
}