Pith Number

pith:QTEIKRYC

pith:2017:QTEIKRYCTYOKRK7N76OLV4TTPV

not attested not anchored not stored refs pending

Group classification of (1+3)-dimensional Schr\"odinger equations with position dependent mass

A. G. Nikitin

arxiv:1701.04276 v4 · 2017-01-16 · 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{QTEIKRYCTYOKRK7N76OLV4TTPV}

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	2026-05-17T23:52:08.622191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84c88547029e1ca8abedff9cbaf2737d4d7d1835fa486f0e1dafc12138482688

Aliases

arxiv: 1701.04276 · arxiv_version: 1701.04276v4 · doi: 10.48550/arxiv.1701.04276 · pith_short_12: QTEIKRYCTYOK · pith_short_16: QTEIKRYCTYOKRK7N · pith_short_8: QTEIKRYC

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/QTEIKRYCTYOKRK7N76OLV4TTPV \
  | 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: 84c88547029e1ca8abedff9cbaf2737d4d7d1835fa486f0e1dafc12138482688

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "373b9447729becd6f506098aa648e8ed30e43207eac52f8ad5942314e2166bff",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2017-01-16T13:08:27Z",
    "title_canon_sha256": "1bb8c20d21fab6c6f33916093c7df57c624dcb21927bac3967904e4beabeced8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04276",
    "kind": "arxiv",
    "version": 4
  }
}