Pith Number

pith:NKFTNMO4

pith:2014:NKFTNMO4CKQCDJAVIWCHGVVIDK

not attested not anchored not stored refs pending

Some spectral properties for generalized derivations

Farida Lombarkia, Mohamed Amouch

arxiv:1409.5463 v1 · 2014-09-18 · 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{NKFTNMO4CKQCDJAVIWCHGVVIDK}

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	2026-05-18T02:42:27.526625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a8b36b1dc12a021a41545847356a81abcad4029752bfc87222a003e4a8c6cd7

Aliases

arxiv: 1409.5463 · arxiv_version: 1409.5463v1 · doi: 10.48550/arxiv.1409.5463 · pith_short_12: NKFTNMO4CKQC · pith_short_16: NKFTNMO4CKQCDJAV · pith_short_8: NKFTNMO4

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/NKFTNMO4CKQCDJAVIWCHGVVIDK \
  | 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: 6a8b36b1dc12a021a41545847356a81abcad4029752bfc87222a003e4a8c6cd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a454236b5b558df6a1355c3d9565a1f4af5e8e9f087c447fd5006012b1117e5b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2014-09-18T21:14:30Z",
    "title_canon_sha256": "e5f78e1858c008e795791fd491a8a4dea9914eecbae23ea017119464063e9e62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.5463",
    "kind": "arxiv",
    "version": 1
  }
}