Pith Number

pith:EYHIV4NT

pith:2019:EYHIV4NTAZBJASUM7LYBSPNL7R

not attested not anchored not stored refs pending

The regularized visible fold revisited

Kristian Uldall Kristiansen

arxiv:1908.06781 v5 · 2019-08-19 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EYHIV4NTAZBJASUM7LYBSPNL7R}

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	2026-07-05T01:10:55.645140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

260e8af1b30642904a8cfaf0193dabfc4bc80a40a94a3a0ddfb3c647d5f42d03

Aliases

arxiv: 1908.06781 · arxiv_version: 1908.06781v5 · doi: 10.48550/arxiv.1908.06781 · pith_short_12: EYHIV4NTAZBJ · pith_short_16: EYHIV4NTAZBJASUM · pith_short_8: EYHIV4NT

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/EYHIV4NTAZBJASUM7LYBSPNL7R \
  | 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: 260e8af1b30642904a8cfaf0193dabfc4bc80a40a94a3a0ddfb3c647d5f42d03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2c3bd3ba4f289de96b21b6adab48d9dfef32d87a416e3ac5a7dc61e0ae376b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2019-08-19T13:14:44Z",
    "title_canon_sha256": "ade05cd35f09c16e1ecf3f786a391507982763b58a78b044033bea134179cc5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06781",
    "kind": "arxiv",
    "version": 5
  }
}