Pith Number

pith:Y6NPBNPH

pith:2019:Y6NPBNPHT33ZPCVBLXHPWPXNHG

not attested not anchored not stored refs pending

Favourite distances in 3-space

Konrad J. Swanepoel

arxiv:1907.08402 v1 · 2019-07-19 · math.CO · cs.CG · math.MG

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

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	2026-05-17T23:40:09.963874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c79af0b5e79ef7978aa15dcefb3eed398a02e7fbb715a4980408341bc416953a

Aliases

arxiv: 1907.08402 · arxiv_version: 1907.08402v1 · doi: 10.48550/arxiv.1907.08402 · pith_short_12: Y6NPBNPHT33Z · pith_short_16: Y6NPBNPHT33ZPCVB · pith_short_8: Y6NPBNPH

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/Y6NPBNPHT33ZPCVBLXHPWPXNHG \
  | 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: c79af0b5e79ef7978aa15dcefb3eed398a02e7fbb715a4980408341bc416953a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4853675e1ab2409a2dfb6d953bc13f77fd67c2afe68712c01fbc839ddea49325",
    "cross_cats_sorted": [
      "cs.CG",
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-07-19T08:23:21Z",
    "title_canon_sha256": "135b78e4cff1313dad8b9dbfe2e5323bcf64e8c467fa5a47888ef38196f0ca94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08402",
    "kind": "arxiv",
    "version": 1
  }
}