Pith Number

pith:PDCNFE2I

pith:2008:PDCNFE2IWSW45GODORYF5BWEGV

not attested not anchored not stored refs pending

Infinitely many local higher symmetries without recursion operator or master symmetry: integrability of the Foursov--Burgers system revisited

Artur Sergyeyev

arxiv:0804.2020 v3 · 2008-04-12 · 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{PDCNFE2IWSW45GODORYF5BWEGV}

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	2026-05-18T00:34:10.937006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78c4d29348b4adce99c374705e86c43572d67a0e51ab6181df662d0a54a3a2ef

Aliases

arxiv: 0804.2020 · arxiv_version: 0804.2020v3 · doi: 10.48550/arxiv.0804.2020 · pith_short_12: PDCNFE2IWSW4 · pith_short_16: PDCNFE2IWSW45GOD · pith_short_8: PDCNFE2I

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/PDCNFE2IWSW45GODORYF5BWEGV \
  | 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: 78c4d29348b4adce99c374705e86c43572d67a0e51ab6181df662d0a54a3a2ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93e9460ac75ffe346b434c9e3ebe6bf6b362547eb0e103744d50a5f54cbffc99",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2008-04-12T18:08:57Z",
    "title_canon_sha256": "9a987c2788b1b6b4476213816f3be9dd55448c513c6e2f9c03dca6fbd8b558f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.2020",
    "kind": "arxiv",
    "version": 3
  }
}