Pith Number

pith:6QIB6M5S

pith:2012:6QIB6M5S4HANYZIZQEHQ4OSP7P

not attested not anchored not stored refs pending

Point vortices and classical orthogonal polynomials

Maria V. Demina, Nikolay A. Kudryashov

arxiv:1201.3481 v1 · 2012-01-17 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6QIB6M5S4HANYZIZQEHQ4OSP7P}

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	2026-05-18T01:58:48.268375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4101f33b2e1c0dc6519810f0e3a4ffbeae0d1f381084da32b268ec9924af7c4

Aliases

arxiv: 1201.3481 · arxiv_version: 1201.3481v1 · doi: 10.48550/arxiv.1201.3481 · pith_short_12: 6QIB6M5S4HAN · pith_short_16: 6QIB6M5S4HANYZIZ · pith_short_8: 6QIB6M5S

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/6QIB6M5S4HANYZIZQEHQ4OSP7P \
  | 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: f4101f33b2e1c0dc6519810f0e3a4ffbeae0d1f381084da32b268ec9924af7c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "464b498edfd453fd1bb25230a7401b6b1146e936759e26ed90a45c3e73be8bc1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2012-01-17T11:10:53Z",
    "title_canon_sha256": "f32bf90e366c6925e516302364197076909f370888d30c6ce037d1ac7c471225"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3481",
    "kind": "arxiv",
    "version": 1
  }
}