Pith Number

pith:O4R6IH2K

pith:2008:O4R6IH2K3EVGB35GOF4E5V5QIB

not attested not anchored not stored refs pending

Characteristic foliation on a hypersurface of general type in a projective symplectic manifold

Eckart Viehweg, Jun-Muk Hwang

arxiv:0812.2714 v1 · 2008-12-15 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O4R6IH2K3EVGB35GOF4E5V5QIB}

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	2026-05-17T23:53:39.438560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7723e41f4ad92a60efa671784ed7b0405537640066a73684956acfe10065f8f0

Aliases

arxiv: 0812.2714 · arxiv_version: 0812.2714v1 · doi: 10.48550/arxiv.0812.2714 · pith_short_12: O4R6IH2K3EVG · pith_short_16: O4R6IH2K3EVGB35G · pith_short_8: O4R6IH2K

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/O4R6IH2K3EVGB35GOF4E5V5QIB \
  | 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: 7723e41f4ad92a60efa671784ed7b0405537640066a73684956acfe10065f8f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd21d769bcf971af0ffecad46a445e251934f6d17d099bdec30e75723d9109cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2008-12-15T02:36:54Z",
    "title_canon_sha256": "03c35f384f7ec17cac95f2b7044749d0801d6869220dee01aa5b51f411f4dd37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.2714",
    "kind": "arxiv",
    "version": 1
  }
}