Pith Number

pith:MU742B6A

pith:1998:MU742B6AOP2UHN36EO7CCZ6Y5L

not attested not anchored not stored refs pending

Characteristic Surface Data for the Eikonal Equation

Alejandro Perez, Ezra T. Newman

arxiv:gr-qc/9809016 v2 · 1998-09-03 · 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{MU742B6AOP2UHN36EO7CCZ6Y5L}

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	2026-05-18T01:39:18.385165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

653fcd07c073f543b77e23be2167d8eaf5c69b0f7fde91c7170ceeaa33fa388c

Aliases

arxiv: gr-qc/9809016 · arxiv_version: gr-qc/9809016v2 · doi: 10.48550/arxiv.gr-qc/9809016 · pith_short_12: MU742B6AOP2U · pith_short_16: MU742B6AOP2UHN36 · pith_short_8: MU742B6A

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/MU742B6AOP2UHN36EO7CCZ6Y5L \
  | 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: 653fcd07c073f543b77e23be2167d8eaf5c69b0f7fde91c7170ceeaa33fa388c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "619b138dbe1fc023a8c955dc9f0e5caba1bc5abc7e389a1f2bf06f5b6de47137",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1998-09-03T17:54:21Z",
    "title_canon_sha256": "15ef1a28262819af630b5845220fc331ba29a32bed67154c01a1ece4ea954f8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9809016",
    "kind": "arxiv",
    "version": 2
  }
}