Pith Number

pith:QIPSG7E5

pith:2013:QIPSG7E53XUGEKRVNPV5BSQG2Z

not attested not anchored not stored refs pending

Free Spaces over Countable Compact Metric Spaces

Aude Dalet

arxiv:1307.0735 v2 · 2013-07-02 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QIPSG7E53XUGEKRVNPV5BSQG2Z}

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	2026-05-18T02:54:14.196527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

821f237c9ddde8622a356bebd0ca06d64734d7c57fd6a810bc9db4a0cf44f1be

Aliases

arxiv: 1307.0735 · arxiv_version: 1307.0735v2 · doi: 10.48550/arxiv.1307.0735 · pith_short_12: QIPSG7E53XUG · pith_short_16: QIPSG7E53XUGEKRV · pith_short_8: QIPSG7E5

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/QIPSG7E53XUGEKRVNPV5BSQG2Z \
  | 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: 821f237c9ddde8622a356bebd0ca06d64734d7c57fd6a810bc9db4a0cf44f1be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "311ef4808c82fdd6b65cfdf24d43ce4391bd791c58903af1b52cba73c937bd76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2013-07-02T15:54:39Z",
    "title_canon_sha256": "c5fd32b3e3854ffad151eeeb384a0b567860e52d27a9419f17fb80d1e959879a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.0735",
    "kind": "arxiv",
    "version": 2
  }
}