Pith Number

pith:B6X33RS2

pith:2013:B6X33RS2SDZ5VA2VTWBGTXLD3E

not attested not anchored not stored refs pending

On well-posedness of the Cauchy problem for the wave equation in static spherically symmetric spacetimes

Marcela Sanmartino, Philippe Tchamitchian, Ricardo E. Gamboa Sarav\'i

arxiv:1304.7041 v2 · 2013-04-25 · gr-qc · math-ph · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B6X33RS2SDZ5VA2VTWBGTXLD3E}

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	2026-05-18T03:08:14.016199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fafbdc65a90f3da83559d8269dd63d9195dedc3db5da2803c9ca7712bd9f322

Aliases

arxiv: 1304.7041 · arxiv_version: 1304.7041v2 · doi: 10.48550/arxiv.1304.7041 · pith_short_12: B6X33RS2SDZ5 · pith_short_16: B6X33RS2SDZ5VA2V · pith_short_8: B6X33RS2

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/B6X33RS2SDZ5VA2VTWBGTXLD3E \
  | 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: 0fafbdc65a90f3da83559d8269dd63d9195dedc3db5da2803c9ca7712bd9f322

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17e170593f89b57072407f9c74a772743c53e4a62c2d39bd40822aa31ca67686",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-04-25T22:36:28Z",
    "title_canon_sha256": "4563090da4c1bf16de65ec596e256477af51c369f8e9eb723ba63ee2895415e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7041",
    "kind": "arxiv",
    "version": 2
  }
}