Pith Number

pith:EKA2UL7H

pith:2016:EKA2UL7HRFQZ2WWNF4VA5BMLLB

not attested not anchored not stored refs pending

Conformally correct tilings

Henry Segerman, Saul Schleimer

arxiv:1612.08299 v1 · 2016-12-25 · math.HO · 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{EKA2UL7HRFQZ2WWNF4VA5BMLLB}

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	2026-05-18T00:53:57.034095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2281aa2fe789619d5acd2f2a0e858b587c528faaf0e249159c97c06212745980

Aliases

arxiv: 1612.08299 · arxiv_version: 1612.08299v1 · doi: 10.48550/arxiv.1612.08299 · pith_short_12: EKA2UL7HRFQZ · pith_short_16: EKA2UL7HRFQZ2WWN · pith_short_8: EKA2UL7H

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/EKA2UL7HRFQZ2WWNF4VA5BMLLB \
  | 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: 2281aa2fe789619d5acd2f2a0e858b587c528faaf0e249159c97c06212745980

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2585a6b316b227b99cf14aaf8855e0280a7a376b3d053e1c26b9a95038b8b8c7",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2016-12-25T22:00:46Z",
    "title_canon_sha256": "ab965a9170c23777808cb60f396126f50a39be6206ffe89ea4b11ff94f066312"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.08299",
    "kind": "arxiv",
    "version": 1
  }
}