Pith Number

pith:BFFSFZUQ

pith:2021:BFFSFZUQJG5AXW2S37SH4D332O

not attested not anchored not stored refs pending

Integrable semi-discretisation of the Drinfel'd--Sokolov hierarchies

Wei Fu, Yue Yin

arxiv:2108.05250 v4 · 2021-08-11 · nlin.SI · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BFFSFZUQJG5AXW2S37SH4D332O}

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	2026-07-05T04:34:13.139559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

094b22e69049ba0bdb52dfe47e0f7bd386b01c6468dc766b1cf7110ecc12e1c3

Aliases

arxiv: 2108.05250 · arxiv_version: 2108.05250v4 · doi: 10.48550/arxiv.2108.05250 · pith_short_12: BFFSFZUQJG5A · pith_short_16: BFFSFZUQJG5AXW2S · pith_short_8: BFFSFZUQ

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/BFFSFZUQJG5AXW2S37SH4D332O \
  | 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: 094b22e69049ba0bdb52dfe47e0f7bd386b01c6468dc766b1cf7110ecc12e1c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5839f56cdd10f4b44c1e7cda07d57bc2d0cb0eda21d0efaee0697d46179dded0",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2021-08-11T14:42:32Z",
    "title_canon_sha256": "000ffa2769cc1bc83491147eae3c5805755090ffd331973d474ef8de44344f85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.05250",
    "kind": "arxiv",
    "version": 4
  }
}