Pith Number

pith:IAMHSSCP

pith:2014:IAMHSSCPNDEKS6PMBPNDJBMBLK

not attested not anchored not stored refs pending

Distinguishing perfect set properties in separable metrizable spaces

Andrea Medini

arxiv:1405.0191 v2 · 2014-05-01 · math.LO · 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{IAMHSSCPNDEKS6PMBPNDJBMBLK}

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	2026-05-18T02:44:40.122059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

401879484f68c8a979ec0bda3485815a846795a2a6afe900c7a860beba4cce39

Aliases

arxiv: 1405.0191 · arxiv_version: 1405.0191v2 · doi: 10.48550/arxiv.1405.0191 · pith_short_12: IAMHSSCPNDEK · pith_short_16: IAMHSSCPNDEKS6PM · pith_short_8: IAMHSSCP

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/IAMHSSCPNDEKS6PMBPNDJBMBLK \
  | 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: 401879484f68c8a979ec0bda3485815a846795a2a6afe900c7a860beba4cce39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62f77aa549868ac7f0f677e71c71f47da673b37b27efac875596f8435f09e452",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-05-01T15:32:53Z",
    "title_canon_sha256": "8881aacd8cddf6e3965b042f65fa0c83cc29db7a286b78a745233812aaffe410"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.0191",
    "kind": "arxiv",
    "version": 2
  }
}