Pith Number

pith:FZ5253UE

pith:2014:FZ5253UEQZPUWD4DWRM6PERX7U

not attested not anchored not stored refs pending

Doubrov-Ferapontov general heavenly equation and the hyper-K\"ahler hierarchy

L. V. Bogdanov

arxiv:1412.7376 v2 · 2014-12-23 · nlin.SI · gr-qc · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FZ5253UEQZPUWD4DWRM6PERX7U}

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	2026-05-18T02:25:04.489882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e7baeee84865f4b0f83b459e79237fd3a3bf2ec58b3aebea31d79f4c43f63d3

Aliases

arxiv: 1412.7376 · arxiv_version: 1412.7376v2 · doi: 10.48550/arxiv.1412.7376 · pith_short_12: FZ5253UEQZPU · pith_short_16: FZ5253UEQZPUWD4D · pith_short_8: FZ5253UE

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/FZ5253UEQZPUWD4DWRM6PERX7U \
  | 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: 2e7baeee84865f4b0f83b459e79237fd3a3bf2ec58b3aebea31d79f4c43f63d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86b1d33d9c05f2b2a17da6becd4096b1f080a873e95ceeb5a06e2f35851ed7c5",
    "cross_cats_sorted": [
      "gr-qc",
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2014-12-23T14:36:38Z",
    "title_canon_sha256": "9fcd96308ead03df6320a99125432ac22eeb408a7104c93a0e5ef5527d049eeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.7376",
    "kind": "arxiv",
    "version": 2
  }
}