Pith Number

pith:A4DYWK3N

pith:1997:A4DYWK3NECWWQBSZFMAOCTHUSH

not attested not anchored not stored refs pending

Diameter preserving linear bijections of $C(X)$

Lajos Molnar, M. Gyory

arxiv:math/9707208 v1 · 1997-07-04 · 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{A4DYWK3NECWWQBSZFMAOCTHUSH}

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	2026-05-18T01:05:35.064429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07078b2b6d20ad6806592b00e14cf491e66d6eb9a2a6bf527ebc40a6e08f381d

Aliases

arxiv: math/9707208 · arxiv_version: math/9707208v1 · doi: 10.48550/arxiv.math/9707208 · pith_short_12: A4DYWK3NECWW · pith_short_16: A4DYWK3NECWWQBSZ · pith_short_8: A4DYWK3N

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/A4DYWK3NECWWQBSZFMAOCTHUSH \
  | 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: 07078b2b6d20ad6806592b00e14cf491e66d6eb9a2a6bf527ebc40a6e08f381d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "227ab44cd713e26bbbb3f0c7f3a25829865793ebdfd2464ddfedc6fc5db03d2f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.FA",
    "submitted_at": "1997-07-04T00:00:00Z",
    "title_canon_sha256": "d0719588357b8c9e51717123d4072a82c4be1e2bed0572ff3a9fdf40155aefac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9707208",
    "kind": "arxiv",
    "version": 1
  }
}