Pith Number

pith:EFQ6JNMK

pith:2015:EFQ6JNMKNDPM5ZRNLWWVPNH64Z

not attested not anchored not stored refs pending

An elementary exposition to topological overlap in the plane

Amir Yehudayoff

arxiv:1508.00777 v1 · 2015-08-04 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EFQ6JNMKNDPM5ZRNLWWVPNH64Z}

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	2026-05-18T01:35:53.387955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2161e4b58a68decee62d5dad57b4fee64bc244aca75ad8c4e107006e07595cbe

Aliases

arxiv: 1508.00777 · arxiv_version: 1508.00777v1 · doi: 10.48550/arxiv.1508.00777 · pith_short_12: EFQ6JNMKNDPM · pith_short_16: EFQ6JNMKNDPM5ZRN · pith_short_8: EFQ6JNMK

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/EFQ6JNMKNDPM5ZRNLWWVPNH64Z \
  | 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: 2161e4b58a68decee62d5dad57b4fee64bc244aca75ad8c4e107006e07595cbe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c81e98882d8f082c6025e193a41287c01a8ea2d1c96fd4de799ec1c7146fbf4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2015-08-04T14:04:21Z",
    "title_canon_sha256": "d8f44537c8228905d120e753f39ac28ddb3ab421e74aa0259b35194205002bee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.00777",
    "kind": "arxiv",
    "version": 1
  }
}