Pith Number

pith:RILP2WFW

pith:2019:RILP2WFWYH5QAFQN76TAMDIQ52

not attested not anchored not stored refs pending

Coordinatizing Data With Lens Spaces and Persistent Cohomology

Jose A. Perea, Luis Polanco

arxiv:1905.00350 v2 · 2019-05-01 · math.AT · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RILP2WFWYH5QAFQN76TAMDIQ52}

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	2026-05-17T23:42:13.511481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a16fd58b6c1fb00160dffa6060d10ee9c3fb064c42d9446fbebd82de6c7e9d1

Aliases

arxiv: 1905.00350 · arxiv_version: 1905.00350v2 · doi: 10.48550/arxiv.1905.00350 · pith_short_12: RILP2WFWYH5Q · pith_short_16: RILP2WFWYH5QAFQN · pith_short_8: RILP2WFW

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/RILP2WFWYH5QAFQN76TAMDIQ52 \
  | 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: 8a16fd58b6c1fb00160dffa6060d10ee9c3fb064c42d9446fbebd82de6c7e9d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46d9b0b688bf3a13cd54af726c18e90f5fa0abdb8cf4c0b0aca16fea0b0c30f1",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2019-05-01T15:47:18Z",
    "title_canon_sha256": "b7d0c5f730a0a41d6685d5af626d01247bb06c7c77a6052625e1b8b5e8c4b4d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.00350",
    "kind": "arxiv",
    "version": 2
  }
}