Pith Number

pith:735OFH2K

pith:2009:735OFH2KVJQXRMHD6OKF2HXBKD

not attested not anchored not stored refs pending

Some constructions of biharmonic maps and Chen's conjecture on biharmonic hypersurfaces

Ye-Lin Ou

arxiv:0912.1141 v2 · 2009-12-06 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{735OFH2KVJQXRMHD6OKF2HXBKD}

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	2026-05-18T00:08:16.548993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fefae29f4aaa6178b0e3f3945d1ee150fd2de5e89518aa8595a4e44cd6c82e66

Aliases

arxiv: 0912.1141 · arxiv_version: 0912.1141v2 · doi: 10.48550/arxiv.0912.1141 · pith_short_12: 735OFH2KVJQX · pith_short_16: 735OFH2KVJQXRMHD · pith_short_8: 735OFH2K

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/735OFH2KVJQXRMHD6OKF2HXBKD \
  | 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: fefae29f4aaa6178b0e3f3945d1ee150fd2de5e89518aa8595a4e44cd6c82e66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a65d69395c3b59792e02960225224fdd9876eb22056770c5fca59c45f520c4ac",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-12-06T23:48:08Z",
    "title_canon_sha256": "9593df306a2464d0bf0ac7c25f77e69c65d1301747fd2effa068d2bd23c9f9ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1141",
    "kind": "arxiv",
    "version": 2
  }
}