Pith Number

pith:DXFEWIBU

pith:2012:DXFEWIBUUUGF2HMJNV7S3CC25G

not attested not anchored not stored refs pending

Characteristic polynomials, related to the normal form of the non linear Schr\"{o}dinger equation

Nguyen Bich Van

arxiv:1203.6015 v1 · 2012-03-27 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DXFEWIBUUUGF2HMJNV7S3CC25G}

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	2026-05-18T03:59:12.729365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1dca4b2034a50c5d1d896d7f2d885ae98f88ca0bd4066113f0ec4281347378c2

Aliases

arxiv: 1203.6015 · arxiv_version: 1203.6015v1 · doi: 10.48550/arxiv.1203.6015 · pith_short_12: DXFEWIBUUUGF · pith_short_16: DXFEWIBUUUGF2HMJ · pith_short_8: DXFEWIBU

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/DXFEWIBUUUGF2HMJNV7S3CC25G \
  | 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: 1dca4b2034a50c5d1d896d7f2d885ae98f88ca0bd4066113f0ec4281347378c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd58ad1c8ae50b15f30c9c2f92cf7233dc93be352d5f8ab248db97bc256e306c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-03-27T16:32:29Z",
    "title_canon_sha256": "6f09267101cd433573a6175bfb88032e2d55be45f0ad61fdbf726a50c29b93f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6015",
    "kind": "arxiv",
    "version": 1
  }
}