Pith Number

pith:44ERRALM

pith:2008:44ERRALMWNBQVBKAYRICXCS4QO

not attested not anchored not stored refs pending

Simultaneous packing and covering in sequence spaces

Konrad J. Swanepoel

arxiv:0806.4473 v1 · 2008-06-27 · math.MG · math.FA

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	2026-05-18T02:28:21.500301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e70918816cb3430a8540c4502b8a5c8381fc10d9591c26a45f3a38eea8e3852d

Aliases

arxiv: 0806.4473 · arxiv_version: 0806.4473v1 · doi: 10.48550/arxiv.0806.4473 · pith_short_12: 44ERRALMWNBQ · pith_short_16: 44ERRALMWNBQVBKA · pith_short_8: 44ERRALM

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/44ERRALMWNBQVBKAYRICXCS4QO \
  | 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: e70918816cb3430a8540c4502b8a5c8381fc10d9591c26a45f3a38eea8e3852d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e262b4700c5cca2383bd49976dbeadd04002763dc7b73799f7b16cfd1f60d73f",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2008-06-27T09:49:37Z",
    "title_canon_sha256": "98995e5f7082e5023f2099ba8f79e57ff40dfd50e2e341c11be0cfe1fc830b60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.4473",
    "kind": "arxiv",
    "version": 1
  }
}