Pith Number

pith:TNXOAWAW

pith:2023:TNXOAWAWTD4Q5VIYGW64MJACTP

not attested not anchored not stored refs pending

Birational maps from polarization and the preservation of measure and integrals

David I McLaren, G R W Quispel, Robert I McLachlan

arxiv:2303.04300 v2 · 2023-03-08 · math.DS · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TNXOAWAWTD4Q5VIYGW64MJACTP}

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	2026-07-05T06:30:29.674378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b6ee0581698f90ed51835bdc624029bf6eb4084f2415dcb0461d9e22886e96a

Aliases

arxiv: 2303.04300 · arxiv_version: 2303.04300v2 · doi: 10.48550/arxiv.2303.04300 · pith_short_12: TNXOAWAWTD4Q · pith_short_16: TNXOAWAWTD4Q5VIY · pith_short_8: TNXOAWAW

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/TNXOAWAWTD4Q5VIYGW64MJACTP \
  | 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: 9b6ee0581698f90ed51835bdc624029bf6eb4084f2415dcb0461d9e22886e96a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebf24e2e21611a2f199af80232fb94d08616061216ca2cd9cd0bd8489875449c",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2023-03-08T00:38:44Z",
    "title_canon_sha256": "cbec49fc2c0cd2a7a054474cb8000178b4d90723f24b6261a0ac51914440aa20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.04300",
    "kind": "arxiv",
    "version": 2
  }
}