Pith Number

pith:7DIO6AC5

pith:2016:7DIO6AC5WIT3VOTU7SWC2T4UMH

not attested not anchored not stored refs pending

On the cardinality of almost discretely Lindelof spaces

Angelo Bella, Santi Spadaro

arxiv:1611.07267 v5 · 2016-11-22 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7DIO6AC5WIT3VOTU7SWC2T4UMH}

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	2026-05-18T00:32:44.142989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8d0ef005db227baba74fcac2d4f9461e48031e81b876261bc1021c41494bba9

Aliases

arxiv: 1611.07267 · arxiv_version: 1611.07267v5 · doi: 10.48550/arxiv.1611.07267 · pith_short_12: 7DIO6AC5WIT3 · pith_short_16: 7DIO6AC5WIT3VOTU · pith_short_8: 7DIO6AC5

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/7DIO6AC5WIT3VOTU7SWC2T4UMH \
  | 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: f8d0ef005db227baba74fcac2d4f9461e48031e81b876261bc1021c41494bba9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea252cb5ba5571828af4de8bcb956f9c85deb324acaf3bf6f4eaa99ed0857e34",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2016-11-22T12:08:57Z",
    "title_canon_sha256": "2c6556120da2a45a8398b897e6685f06aa5a05adc822b7ea84e2e70730d01d5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.07267",
    "kind": "arxiv",
    "version": 5
  }
}