Pith Number

pith:ZQ3YHAQ3

pith:2017:ZQ3YHAQ37O6I5LVF3TJN4JIMC4

not attested not anchored not stored refs pending

Applications of the Ohsawa-Takegoshi Extension Theorem to Direct Image Problems

UNISTRA), Ya Deng (IRMA

arxiv:1703.07279 v2 · 2017-03-21 · math.AG · 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{ZQ3YHAQ37O6I5LVF3TJN4JIMC4}

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	2026-05-18T00:32:20.739312Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc3783821bfbbc8eaea5dcd2de250c170a9ab93f1a03d13eb7775aa1e756de02

Aliases

arxiv: 1703.07279 · arxiv_version: 1703.07279v2 · doi: 10.48550/arxiv.1703.07279 · pith_short_12: ZQ3YHAQ37O6I · pith_short_16: ZQ3YHAQ37O6I5LVF · pith_short_8: ZQ3YHAQ3

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/ZQ3YHAQ37O6I5LVF3TJN4JIMC4 \
  | 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: cc3783821bfbbc8eaea5dcd2de250c170a9ab93f1a03d13eb7775aa1e756de02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e09c42042e5d455d46d0febae852ad407373dac841e530e6de482417639733b0",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-03-21T15:37:32Z",
    "title_canon_sha256": "e193b29aa28e3cb21b1109609faf3a6fda70838d8893403eb8e2c0eab127723b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.07279",
    "kind": "arxiv",
    "version": 2
  }
}