Pith Number

pith:KSOX2CDD

pith:2019:KSOX2CDDP4VGUESFJYBDZDVHIH

not attested not anchored not stored refs pending

Some Remarks on Systems of Equiangular Lines

Jack H. Koolen, Jae Young Yang, Mengyue Cao

arxiv:1905.03475 v1 · 2019-05-09 · 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{KSOX2CDDP4VGUESFJYBDZDVHIH}

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	2026-05-17T23:46:39.761177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

549d7d08637f2a6a12454e023c8ea741cef898a8ff97620b150541d3d4fb4518

Aliases

arxiv: 1905.03475 · arxiv_version: 1905.03475v1 · doi: 10.48550/arxiv.1905.03475 · pith_short_12: KSOX2CDDP4VG · pith_short_16: KSOX2CDDP4VGUESF · pith_short_8: KSOX2CDD

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/KSOX2CDDP4VGUESFJYBDZDVHIH \
  | 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: 549d7d08637f2a6a12454e023c8ea741cef898a8ff97620b150541d3d4fb4518

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d897f993b1366b7cc39d03071e0ce0ba57e4765bf4529a394643f73125bfb3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-05-09T07:39:52Z",
    "title_canon_sha256": "f56caa278e2155c52c939dc13d092d288069c227e9b7550ea992124f8d81ba0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03475",
    "kind": "arxiv",
    "version": 1
  }
}