Pith Number

pith:NDJM2BFY

pith:2011:NDJM2BFYO2EFEWEDSEB2JBPYPP

not attested not anchored not stored refs pending

Killing potentials with geodesic gradients on K\"ahler surfaces

Andrzej Derdzinski

arxiv:1104.4132 v1 · 2011-04-20 · 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{NDJM2BFYO2EFEWEDSEB2JBPYPP}

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	2026-05-18T03:13:46.616348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68d2cd04b876885258839103a485f87bc54e06115b32fb61411bfcc3639b2b8c

Aliases

arxiv: 1104.4132 · arxiv_version: 1104.4132v1 · doi: 10.48550/arxiv.1104.4132 · pith_short_12: NDJM2BFYO2EF · pith_short_16: NDJM2BFYO2EFEWED · pith_short_8: NDJM2BFY

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/NDJM2BFYO2EFEWEDSEB2JBPYPP \
  | 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: 68d2cd04b876885258839103a485f87bc54e06115b32fb61411bfcc3639b2b8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa727ab0bb8cd06283dd53dbdff041b654d51f7cdc6df6dc451097319ca9d260",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-04-20T21:31:19Z",
    "title_canon_sha256": "97e2f48a9f62c7d0ea3ada0848376864a646fd1643e7549eb03ecbaed7db0367"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4132",
    "kind": "arxiv",
    "version": 1
  }
}