Pith Number

pith:JX6QLRWL

pith:2000:JX6QLRWLJ6KXGWLSQNXAGLWEEU

not attested not anchored not stored refs pending

Regular coordinate systems for Schwarzschild and other spherical spacetimes

Eric Poisson, Karl Martel

arxiv:gr-qc/0001069 v4 · 2000-01-22 · 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{JX6QLRWLJ6KXGWLSQNXAGLWEEU}

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	2026-07-04T16:19:35.440762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4dfd05c6cb4f95735972836e032ec425234a3c29826784bdb41924a79c54f942

Aliases

arxiv: gr-qc/0001069 · arxiv_version: gr-qc/0001069v4 · doi: 10.48550/arxiv.gr-qc/0001069 · pith_short_12: JX6QLRWLJ6KX · pith_short_16: JX6QLRWLJ6KXGWLS · pith_short_8: JX6QLRWL

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/JX6QLRWLJ6KXGWLSQNXAGLWEEU \
  | 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: 4dfd05c6cb4f95735972836e032ec425234a3c29826784bdb41924a79c54f942

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c11165ebe27198eed3bdd4a7ca7eef8162ed91895377dbcf6f9f160d6a2da9f7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2000-01-22T18:06:30Z",
    "title_canon_sha256": "f5bcea7111852fb0ce52f0e400c9771f348b50d4da64398898956353efd91800"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0001069",
    "kind": "arxiv",
    "version": 4
  }
}