Pith Number

pith:54IUTLNV

pith:2018:54IUTLNVM4ZKYOC7DM3EL2LFAX

not attested not anchored not stored refs pending

Hyperbolic Geometry and Amplituhedra in 1+2 dimensions

Giulio Salvatori, Sergio Cacciatori

arxiv:1803.05809 v1 · 2018-03-15 · hep-th · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{54IUTLNVM4ZKYOC7DM3EL2LFAX}

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	2026-05-18T00:04:59.219140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef1149adb56732ac385f1b3645e96505ccfeebc3707d5a9a52cfade7927c7e78

Aliases

arxiv: 1803.05809 · arxiv_version: 1803.05809v1 · doi: 10.48550/arxiv.1803.05809 · pith_short_12: 54IUTLNVM4ZK · pith_short_16: 54IUTLNVM4ZKYOC7 · pith_short_8: 54IUTLNV

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/54IUTLNVM4ZKYOC7DM3EL2LFAX \
  | 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: ef1149adb56732ac385f1b3645e96505ccfeebc3707d5a9a52cfade7927c7e78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2425e0d983437a06cb8f68c4bcd85c04650907918fd95918355e369435de5f38",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2018-03-15T15:31:46Z",
    "title_canon_sha256": "68803c58f615916482187fb7ea13834a1b531c63fa6294914e67940aabf8f36e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.05809",
    "kind": "arxiv",
    "version": 1
  }
}