Pith Number

pith:FIH4X3FB

pith:2019:FIH4X3FBNYJS5V3PYJ6JR6K5FI

not attested not anchored not stored refs pending

Eigenfunction Behavior and Adaptive Finite Element Approximations of Nonlinear Eigenvalue Problems in Quantum Physics

Aihui Zhou, Bin Yang

arxiv:1907.03968 v1 · 2019-07-09 · math.NA · cs.NA · 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{FIH4X3FBNYJS5V3PYJ6JR6K5FI}

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	2026-05-17T23:41:00.379699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a0fcbeca16e132ed76fc27c98f95d2a0027754f2a12ff177800dc708170aaf3

Aliases

arxiv: 1907.03968 · arxiv_version: 1907.03968v1 · doi: 10.48550/arxiv.1907.03968 · pith_short_12: FIH4X3FBNYJS · pith_short_16: FIH4X3FBNYJS5V3P · pith_short_8: FIH4X3FB

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/FIH4X3FBNYJS5V3PYJ6JR6K5FI \
  | 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: 2a0fcbeca16e132ed76fc27c98f95d2a0027754f2a12ff177800dc708170aaf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "297bdf31e24b93d9b3214e4dbf3aa4fbb4e7f6436219600dc34a75546aadd4d7",
    "cross_cats_sorted": [
      "cs.NA",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-07-09T03:34:35Z",
    "title_canon_sha256": "2c16c4d64e9c094265d5f8aeeaf1abc2b74cd02fc2c17279f819a9534f161d6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.03968",
    "kind": "arxiv",
    "version": 1
  }
}