Pith Number

pith:WKEVL6H4

pith:2013:WKEVL6H4YCHRYL4OCOKXI5FSRQ

not attested not anchored not stored refs pending

Semilinear Hyperbolic Equations in Curved Spacetime

Karen Yagdjian

arxiv:1305.4404 v1 · 2013-05-19 · math.AP · 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{WKEVL6H4YCHRYL4OCOKXI5FSRQ}

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	2026-05-18T03:25:23.813601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b28955f8fcc08f1c2f8e13957474b28c02a76898abea5084bb7f1ef39bcbcc85

Aliases

arxiv: 1305.4404 · arxiv_version: 1305.4404v1 · doi: 10.48550/arxiv.1305.4404 · pith_short_12: WKEVL6H4YCHR · pith_short_16: WKEVL6H4YCHRYL4O · pith_short_8: WKEVL6H4

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/WKEVL6H4YCHRYL4OCOKXI5FSRQ \
  | 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: b28955f8fcc08f1c2f8e13957474b28c02a76898abea5084bb7f1ef39bcbcc85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c0610875843b5de8686025d1708c955ce634d9cf5e5f354d76e9aa76d82780e",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-05-19T19:35:49Z",
    "title_canon_sha256": "d5cbd582f586364fb51e2c44ea645ecce05a850a9211942dd7c0dc03d6d36a18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4404",
    "kind": "arxiv",
    "version": 1
  }
}