Pith Number

pith:MRVFTLFG

pith:2019:MRVFTLFGZES5T7KUSG5LWD6JVR

not attested not anchored not stored refs pending

New necessary conditions for Payley type PDS in Abelian groups

Zeying Wang

arxiv:1901.10063 v1 · 2019-01-29 · 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{MRVFTLFGZES5T7KUSG5LWD6JVR}

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	2026-05-17T23:55:16.256277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

646a59aca6c925d9fd5491babb0fc9ac51830d7296ee3c2b24c940d62cbbb5d4

Aliases

arxiv: 1901.10063 · arxiv_version: 1901.10063v1 · doi: 10.48550/arxiv.1901.10063 · pith_short_12: MRVFTLFGZES5 · pith_short_16: MRVFTLFGZES5T7KU · pith_short_8: MRVFTLFG

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/MRVFTLFGZES5T7KUSG5LWD6JVR \
  | 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: 646a59aca6c925d9fd5491babb0fc9ac51830d7296ee3c2b24c940d62cbbb5d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f63572b8241f525a06e0dab6a6421f1ff65a2c8f446553e7976d7d02e9994d87",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-01-29T01:33:00Z",
    "title_canon_sha256": "3478dc93cae7bcbfdd931306e5aea8fede262e79e15e42c8187a20397186fc22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.10063",
    "kind": "arxiv",
    "version": 1
  }
}