Pith Number

pith:R3FKSTRO

pith:2019:R3FKSTROJUDEEE7XCP7NXX3SY7

not attested not anchored not stored refs pending

The inverse approach to Dirac-type systems based on the $A$-function concept

Alexander Sakhnovich, Fritz Gesztesy

arxiv:1903.00779 v1 · 2019-03-02 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R3FKSTROJUDEEE7XCP7NXX3SY7}

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	2026-05-17T23:52:13.307897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ecaa94e2e4d064213f713fedbdf72c7cb7860271f917b6e12685fe6fd48242b

Aliases

arxiv: 1903.00779 · arxiv_version: 1903.00779v1 · doi: 10.48550/arxiv.1903.00779 · pith_short_12: R3FKSTROJUDE · pith_short_16: R3FKSTROJUDEEE7X · pith_short_8: R3FKSTRO

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/R3FKSTROJUDEEE7XCP7NXX3SY7 \
  | 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: 8ecaa94e2e4d064213f713fedbdf72c7cb7860271f917b6e12685fe6fd48242b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba2d43daa571f1e966c3ea3b4beb7e664e91fa308b1dd88f3aae339485329968",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2019-03-02T22:24:48Z",
    "title_canon_sha256": "7daf9ccc0c5e27924003d1c5bf491d99713fc97ec882669ff079f3734b17ca83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.00779",
    "kind": "arxiv",
    "version": 1
  }
}