Pith Number

pith:SZY5TSKD

pith:1999:SZY5TSKDVRUW3J5RGVIJMEXOOF

not attested not anchored not stored refs pending

Matching characteristic codes: exploiting two directions

Luis Lehner

arxiv:gr-qc/9911033 v1 · 1999-11-09 · 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{SZY5TSKDVRUW3J5RGVIJMEXOOF}

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	2026-05-18T02:37:27.850627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9671d9c943ac696da7b135509612ee71707f4d34839868cd6039f79f112b6954

Aliases

arxiv: gr-qc/9911033 · arxiv_version: gr-qc/9911033v1 · doi: 10.48550/arxiv.gr-qc/9911033 · pith_short_12: SZY5TSKDVRUW · pith_short_16: SZY5TSKDVRUW3J5R · pith_short_8: SZY5TSKD

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/SZY5TSKDVRUW3J5RGVIJMEXOOF \
  | 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: 9671d9c943ac696da7b135509612ee71707f4d34839868cd6039f79f112b6954

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f5e0a6496c5bb3059165f938f4cf0f29ae7720895eebaf9308be51e2e7c2a25",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-11-09T17:58:27Z",
    "title_canon_sha256": "875878e3b27086d103156a278351ed4c9256861613d9e5b35973e261b4c64d4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9911033",
    "kind": "arxiv",
    "version": 1
  }
}