Pith Number

pith:I26VO4WY

pith:2014:I26VO4WYO3KMEBOINPH53C7O3J

not attested not anchored not stored refs pending

Mapping spaces from projective spaces

Mitsunobu Tsutaya

arxiv:1408.2010 v4 · 2014-08-09 · 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{I26VO4WYO3KMEBOINPH53C7O3J}

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	2026-05-18T01:09:32.365454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46bd5772d876d4c205c86bcfdd8beeda4830f921c457255407e0c8f610a2b6b9

Aliases

arxiv: 1408.2010 · arxiv_version: 1408.2010v4 · doi: 10.48550/arxiv.1408.2010 · pith_short_12: I26VO4WYO3KM · pith_short_16: I26VO4WYO3KMEBOI · pith_short_8: I26VO4WY

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/I26VO4WYO3KMEBOINPH53C7O3J \
  | 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: 46bd5772d876d4c205c86bcfdd8beeda4830f921c457255407e0c8f610a2b6b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36c4eb6dc6042a76cf6c6b965f6e35c8782564c432517700ffb8c0febbf32e0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-08-09T02:52:09Z",
    "title_canon_sha256": "00af7d563abc031441ffae685974ed0f7c55d7ed2371c82e72005957882e9dbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2010",
    "kind": "arxiv",
    "version": 4
  }
}