Pith Number

pith:4Y66MGUL

pith:2025:4Y66MGULST6Z3S5L2GRG4XMU5A

not attested not anchored not stored refs pending

Fitting without fittings

Bernd Stratmann, Johanna Bimmermann, Kai Zehmisch

arxiv:2506.07525 v1 · 2025-06-09 · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4Y66MGULST6Z3S5L2GRG4XMU5A}

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	2026-07-05T11:18:28.821541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e63de61a8b94fd9dcbabd1a26e5d94e82cd2a567d240547e114e9861f1003b06

Aliases

arxiv: 2506.07525 · arxiv_version: 2506.07525v1 · doi: 10.48550/arxiv.2506.07525 · pith_short_12: 4Y66MGULST6Z · pith_short_16: 4Y66MGULST6Z3S5L · pith_short_8: 4Y66MGUL

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/4Y66MGULST6Z3S5L2GRG4XMU5A \
  | 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: e63de61a8b94fd9dcbabd1a26e5d94e82cd2a567d240547e114e9861f1003b06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f3a2308a7b09058df2b9e13e270f9bfeea2d0a81f1b95290cf7548cde084b13",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2025-06-09T08:09:40Z",
    "title_canon_sha256": "6b5dd42343a90b51365ed08ae9c680719fead53029387dc2916c5108a5695af8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.07525",
    "kind": "arxiv",
    "version": 1
  }
}