Pith Number

pith:3LNXQ4NL

pith:2025:3LNXQ4NLWERIZFPBZG6BTZS64D

not attested not anchored not stored refs pending

Taking the amplituhedron to the limit

Joris Koefler, Rainer Sinn

arxiv:2501.08221 v1 · 2025-01-14 · math.AG · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3LNXQ4NLWERIZFPBZG6BTZS64D}

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	2026-07-05T10:00:57.763035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dadb7871abb1228c95e1c9bc19e65ee0f5e97355470128835f38022c8d7b9e30

Aliases

arxiv: 2501.08221 · arxiv_version: 2501.08221v1 · doi: 10.48550/arxiv.2501.08221 · pith_short_12: 3LNXQ4NLWERI · pith_short_16: 3LNXQ4NLWERIZFPB · pith_short_8: 3LNXQ4NL

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/3LNXQ4NLWERIZFPBZG6BTZS64D \
  | 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: dadb7871abb1228c95e1c9bc19e65ee0f5e97355470128835f38022c8d7b9e30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc7fee06f554de35390fb4324719121384e486e0c1fa6f4f7d1a59f6a4ab9486",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-01-14T16:05:14Z",
    "title_canon_sha256": "c560e055a93f48fee5181f3b6fcf6c591c2be7452c58dfe062375eb875d8a916"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.08221",
    "kind": "arxiv",
    "version": 1
  }
}