Pith Number

pith:KYPRDH2U

pith:2016:KYPRDH2UQB2WFDWWCMWGIX4WHO

not attested not anchored not stored refs pending

M\"obius Invariants of Shapes and Images

Robert McLachlan, Stephen Marsland

arxiv:1603.09335 v2 · 2016-03-30 · cs.CV · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KYPRDH2UQB2WFDWWCMWGIX4WHO}

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	2026-05-18T01:09:29.512739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

561f119f548075628ed6132c645f963b9913d70008cd26630539c4e5fdb816b8

Aliases

arxiv: 1603.09335 · arxiv_version: 1603.09335v2 · doi: 10.48550/arxiv.1603.09335 · pith_short_12: KYPRDH2UQB2W · pith_short_16: KYPRDH2UQB2WFDWW · pith_short_8: KYPRDH2U

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/KYPRDH2UQB2WFDWWCMWGIX4WHO \
  | 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: 561f119f548075628ed6132c645f963b9913d70008cd26630539c4e5fdb816b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66a2b177ae55f2aeff24e9a5b529b3b26aeb62ffe925ec745695698342641b34",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-03-30T05:13:59Z",
    "title_canon_sha256": "abb00544cd59a748f7326e47293d2076047773b9666aff5f23179398f24df274"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.09335",
    "kind": "arxiv",
    "version": 2
  }
}