Pith Number

pith:LLZLVJ3V

pith:2016:LLZLVJ3VBSWDMSZYASF6G7VX6G

not attested not anchored not stored refs pending

Compact spaces as quotients of projective Fraisse limits

Aristotelis Panagiotopoulos

arxiv:1601.04392 v2 · 2016-01-18 · 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{LLZLVJ3VBSWDMSZYASF6G7VX6G}

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	2026-05-18T00:45:50.154103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5af2baa7750cac364b38048be37eb7f1af3cfc2e727c584d747b49df53998995

Aliases

arxiv: 1601.04392 · arxiv_version: 1601.04392v2 · doi: 10.48550/arxiv.1601.04392 · pith_short_12: LLZLVJ3VBSWD · pith_short_16: LLZLVJ3VBSWDMSZY · pith_short_8: LLZLVJ3V

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/LLZLVJ3VBSWDMSZYASF6G7VX6G \
  | 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: 5af2baa7750cac364b38048be37eb7f1af3cfc2e727c584d747b49df53998995

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da087b42363b30cf42717e8a4ceeb2cfc2ebfc2285fa65e5e100d3aaa5a2ddfa",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2016-01-18T03:29:24Z",
    "title_canon_sha256": "afa6398610ad2549fb88fcba404a32a1731a82b68ccfb91c1b43c5e7ae254605"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.04392",
    "kind": "arxiv",
    "version": 2
  }
}