Pith Number

pith:3SKEVVDH

pith:2018:3SKEVVDH5INKNLLYQHF3FWD3FI

not attested not anchored not stored refs pending

Path connectedness, local path connectedness and contractibility of $\mathcal{S}_c(X)$

David Maya, Javier Camargo, Patricia Pellicer-Covarrubias

arxiv:1802.00725 v1 · 2018-02-02 · 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{3SKEVVDH5INKNLLYQHF3FWD3FI}

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	2026-05-18T00:24:32.475166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc944ad467ea1aa6ad7881cbb2d87b2a34b66096ed1d8e8fd1e28fd73e9b8f2d

Aliases

arxiv: 1802.00725 · arxiv_version: 1802.00725v1 · doi: 10.48550/arxiv.1802.00725 · pith_short_12: 3SKEVVDH5INK · pith_short_16: 3SKEVVDH5INKNLLY · pith_short_8: 3SKEVVDH

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/3SKEVVDH5INKNLLYQHF3FWD3FI \
  | 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: dc944ad467ea1aa6ad7881cbb2d87b2a34b66096ed1d8e8fd1e28fd73e9b8f2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0221ddab6d051ba5c00ebdfa50ea1693d24098f224d8021d740d057c6b9d52f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2018-02-02T15:15:38Z",
    "title_canon_sha256": "7d510a7567f1db53c10f0d0e42822070455e8722be69111d4a98551265e69bf4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.00725",
    "kind": "arxiv",
    "version": 1
  }
}