Pith Number

pith:6W2ALJPG

pith:2014:6W2ALJPGVVU453AKCQN53ISQTJ

not attested not anchored not stored refs pending

Classification theorems for operators preserving zeros in a strip

Matthew Chasse, Petter Br\"and\'en

arxiv:1402.2795 v2 · 2014-02-12 · math.CV · math.CA · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6W2ALJPGVVU453AKCQN53ISQTJ}

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	2026-05-18T01:11:44.001362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5b405a5e6ad69ceec0a141bdda2509a7598c6969898fefda99639acad0afd54

Aliases

arxiv: 1402.2795 · arxiv_version: 1402.2795v2 · doi: 10.48550/arxiv.1402.2795 · pith_short_12: 6W2ALJPGVVU4 · pith_short_16: 6W2ALJPGVVU453AK · pith_short_8: 6W2ALJPG

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/6W2ALJPGVVU453AKCQN53ISQTJ \
  | 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: f5b405a5e6ad69ceec0a141bdda2509a7598c6969898fefda99639acad0afd54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8affaf380700841a1110059be13f28134b26e84c37761687f9b0da72336ec8ee",
    "cross_cats_sorted": [
      "math.CA",
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2014-02-12T11:54:21Z",
    "title_canon_sha256": "1a5f602b8939343866ee18e4decc1b830241fb2c215ba48cf17d22be6f4e35bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2795",
    "kind": "arxiv",
    "version": 2
  }
}