Pith Number

pith:W4676DJS

pith:2018:W4676DJSSHC3GS4QXC2Z45YELS

not attested not anchored not stored refs pending

Smooth maps compatible with simplicial structures and inverse images

Naoki Kitazawa

arxiv:1802.06381 v6 · 2018-02-18 · 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{W4676DJSSHC3GS4QXC2Z45YELS}

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	2026-05-17T23:57:50.806560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b73dff0d3291c5b34b90b8b59e77045ca948e273f70c28e665b64a23e4a7a98d

Aliases

arxiv: 1802.06381 · arxiv_version: 1802.06381v6 · doi: 10.48550/arxiv.1802.06381 · pith_short_12: W4676DJSSHC3 · pith_short_16: W4676DJSSHC3GS4Q · pith_short_8: W4676DJS

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/W4676DJSSHC3GS4QXC2Z45YELS \
  | 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: b73dff0d3291c5b34b90b8b59e77045ca948e273f70c28e665b64a23e4a7a98d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1a7dfb93e0d02c21cd10f06a5b3ef323cf2b7cf4823565f31d7fe182ed2780b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-02-18T14:06:35Z",
    "title_canon_sha256": "6b24e353f9fcb352493c4fcda85b5e95cefcd0a463c75085aae051cbfcc83ee0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.06381",
    "kind": "arxiv",
    "version": 6
  }
}