Pith Number

pith:REUG4K3N

pith:2026:REUG4K3NWY7F2YFNIEZRRUZM3A

not attested not anchored not stored refs pending

Quasiconformal deformations preserving Hilbert's norm and their applications

Samuel L Krushkal

arxiv:2605.19103 v1 · 2026-05-18 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{REUG4K3NWY7F2YFNIEZRRUZM3A}

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	2026-05-20T01:05:27.253545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89286e2b6db63e5d60ad413318d32cd81c99ab99be2c0e192f3c81582508bb51

Aliases

arxiv: 2605.19103 · arxiv_version: 2605.19103v1 · doi: 10.48550/arxiv.2605.19103 · pith_short_12: REUG4K3NWY7F · pith_short_16: REUG4K3NWY7F2YFN · pith_short_8: REUG4K3N

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/REUG4K3NWY7F2YFNIEZRRUZM3A \
  | 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: 89286e2b6db63e5d60ad413318d32cd81c99ab99be2c0e192f3c81582508bb51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "756c272ae7f34b026398c6ee0d3f66222b6fa0339d9b850296342fd9c1fca5b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2026-05-18T20:43:12Z",
    "title_canon_sha256": "2f5048b7890d3a717590d588cfdb81617cbfd23787786cd1f778f0aa2b131c38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19103",
    "kind": "arxiv",
    "version": 1
  }
}