Pith Number

pith:AWQ6XT4Q

pith:2008:AWQ6XT4QABLU5LMXSGYCHP3V7O

not attested not anchored not stored refs pending

The Calabi flow on toric Fano surface

Weiyong He, Xiuxiong Chen

arxiv:0807.3984 v4 · 2008-07-25 · 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{AWQ6XT4QABLU5LMXSGYCHP3V7O}

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	2026-07-04T17:18:11.493788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05a1ebcf9000574ead9791b023bf75fb9592d5ac339560cf9876a1ec6b70e869

Aliases

arxiv: 0807.3984 · arxiv_version: 0807.3984v4 · doi: 10.48550/arxiv.0807.3984 · pith_short_12: AWQ6XT4QABLU · pith_short_16: AWQ6XT4QABLU5LMX · pith_short_8: AWQ6XT4Q

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/AWQ6XT4QABLU5LMXSGYCHP3V7O \
  | 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: 05a1ebcf9000574ead9791b023bf75fb9592d5ac339560cf9876a1ec6b70e869

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ad2750e57ae9c1282f6bfc4576496b59933c95a51155fa453cb84a78ead7f90",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2008-07-25T00:34:55Z",
    "title_canon_sha256": "a54ce838f579aaee3b3658d91391fd4d44a9d224607cd9626b74606300706234"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.3984",
    "kind": "arxiv",
    "version": 4
  }
}