Pith Number

pith:QIVP243U

pith:2010:QIVP243UUDZGWEJVJF376YJTFN

not attested not anchored not stored refs pending

Fundamental Solutions for Hyperbolic Operators with Variable Coefficients

Karen Yagdjian

arxiv:1001.3177 v1 · 2010-01-19 · 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{QIVP243UUDZGWEJVJF376YJTFN}

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	2026-05-18T04:40:54.537984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

822afd7374a0f26b11354977ff61332b44df8b5e70aa53bd3869fd3465d8daea

Aliases

arxiv: 1001.3177 · arxiv_version: 1001.3177v1 · doi: 10.48550/arxiv.1001.3177 · pith_short_12: QIVP243UUDZG · pith_short_16: QIVP243UUDZGWEJV · pith_short_8: QIVP243U

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/QIVP243UUDZGWEJVJF376YJTFN \
  | 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: 822afd7374a0f26b11354977ff61332b44df8b5e70aa53bd3869fd3465d8daea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d35efd8775a7bb2acd0688c07fbe8f52b965f2eebb2c761379e9f6729ebb9cf",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2010-01-19T01:07:06Z",
    "title_canon_sha256": "e2ff9cebbdb94f3450aa5cb4c5bcd36bb62757378c216615ab9f686f4b38e194"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.3177",
    "kind": "arxiv",
    "version": 1
  }
}