Pith Number

pith:Q7RH3ZTL

pith:2022:Q7RH3ZTLTUQSMBGBO6E6OGLUX3

not attested not anchored not stored refs pending

Counting lattice triangulations: Fredholm equations in combinatorics

S. Yu. Orevkov

arxiv:2201.12827 v2 · 2022-01-30 · 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{Q7RH3ZTLTUQSMBGBO6E6OGLUX3}

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	2026-07-05T09:42:17.059123Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87e27de66b9d212604c17789e71974bed0ca2c2ce4b2d0fc95d5876fc994182c

Aliases

arxiv: 2201.12827 · arxiv_version: 2201.12827v2 · doi: 10.48550/arxiv.2201.12827 · pith_short_12: Q7RH3ZTLTUQS · pith_short_16: Q7RH3ZTLTUQSMBGB · pith_short_8: Q7RH3ZTL

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/Q7RH3ZTLTUQSMBGBO6E6OGLUX3 \
  | 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: 87e27de66b9d212604c17789e71974bed0ca2c2ce4b2d0fc95d5876fc994182c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "172551004318ab20576a1a69134ff10c4da90a0b1374cb1f59097ae80ee76dbf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2022-01-30T14:19:45Z",
    "title_canon_sha256": "5e7085424625319e64b375d55f6333b2de05e3e370e7e300fd0fe48c8f7ef49c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.12827",
    "kind": "arxiv",
    "version": 2
  }
}