Pith Number

pith:FPEUPFBB

pith:2018:FPEUPFBBI7XRVKQCZUBUWGG4FM

not attested not anchored not stored refs pending

Euler calculus on spaces homeomorphic to definable sets and some applications

D. Mosquera-Lois, E. Mac\'ias-Virg\'os

arxiv:1806.11502 v2 · 2018-06-29 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPEUPFBBI7XRVKQCZUBUWGG4FM}

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	2026-05-18T00:11:29.950822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bc947942147ef1aaa02cd034b18dc2b3bc68122ba7c0200edea0648748db833

Aliases

arxiv: 1806.11502 · arxiv_version: 1806.11502v2 · doi: 10.48550/arxiv.1806.11502 · pith_short_12: FPEUPFBBI7XR · pith_short_16: FPEUPFBBI7XRVKQC · pith_short_8: FPEUPFBB

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/FPEUPFBBI7XRVKQCZUBUWGG4FM \
  | 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: 2bc947942147ef1aaa02cd034b18dc2b3bc68122ba7c0200edea0648748db833

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48a02c2f291957febe5ca3eefc85aa78c7c1e83d901d600e195216f74c6532a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-06-29T16:02:31Z",
    "title_canon_sha256": "0ffd5ddca82cbfde5706a31758d51b13324170fd21cfc9c0d4db42bf9f9e9e3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.11502",
    "kind": "arxiv",
    "version": 2
  }
}