Pith Number

pith:MYFEF2H4

pith:2021:MYFEF2H4FHCL62YAJL7HAVFLRN

not attested not anchored not stored refs pending

On the set of points at which an increasing continuous singular function has a nonzero finite derivative

Ludek Zajicek, Marta Kossaczka

arxiv:2111.14519 v2 · 2021-11-29 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MYFEF2H4FHCL62YAJL7HAVFLRN}

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	2026-07-05T03:38:42.858819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

660a42e8fc29c4bf6b004afe7054ab8b6f18734f13e40dad8974546e1b860cd5

Aliases

arxiv: 2111.14519 · arxiv_version: 2111.14519v2 · doi: 10.48550/arxiv.2111.14519 · pith_short_12: MYFEF2H4FHCL · pith_short_16: MYFEF2H4FHCL62YA · pith_short_8: MYFEF2H4

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/MYFEF2H4FHCL62YAJL7HAVFLRN \
  | 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: 660a42e8fc29c4bf6b004afe7054ab8b6f18734f13e40dad8974546e1b860cd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6eadbf61e16ab85b971a88d0d1b0f6aac05a20857addc01fd6a5d01b3d6dd8a6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2021-11-29T13:18:52Z",
    "title_canon_sha256": "129bed34a045f4574c694a59c31727aa922ccab5641b8ed95a3e3e959296aed5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.14519",
    "kind": "arxiv",
    "version": 2
  }
}