Pith Number

pith:YQR45J7F

pith:1998:YQR45J7FFJGPCV26XNRVNBO4AO

not attested not anchored not stored refs pending

Continuous coordinates for all impulsive pp - waves

J. Podolsky, K. Vesely

arxiv:gr-qc/9803016 v1 · 1998-03-04 · 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{YQR45J7FFJGPCV26XNRVNBO4AO}

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	2026-07-04T16:08:46.879795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c423cea7e52a4cf1575ebb635685dc03a3b012fb863bb84fe9c07ce153345b47

Aliases

arxiv: gr-qc/9803016 · arxiv_version: gr-qc/9803016v1 · doi: 10.48550/arxiv.gr-qc/9803016 · pith_short_12: YQR45J7FFJGP · pith_short_16: YQR45J7FFJGPCV26 · pith_short_8: YQR45J7F

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/YQR45J7FFJGPCV26XNRVNBO4AO \
  | 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: c423cea7e52a4cf1575ebb635685dc03a3b012fb863bb84fe9c07ce153345b47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4152631cddc1cd3b8fd5653553693488b3ef7944cdbdfc98c0e975b1dc690aa7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1998-03-04T16:02:42Z",
    "title_canon_sha256": "4bb7deee8ad14345c155ebca33b7467a691593955853cecae58d483095717c52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9803016",
    "kind": "arxiv",
    "version": 1
  }
}