Pith Number

pith:HIBSI375

pith:2006:HIBSI375B53U45YBAMCW42ULZD

not attested not anchored not stored refs pending

Derived and abelian equivalence of K3 surfaces

Daniel Huybrechts

arxiv:math/0604150 v1 · 2006-04-06 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HIBSI375B53U45YBAMCW42ULZD}

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	2026-05-18T03:13:34.476438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a03246ffd0f774e770103056e6a8bc8cd40520f4dc55bf6e7137a7befb3eb1d

Aliases

arxiv: math/0604150 · arxiv_version: math/0604150v1 · doi: 10.48550/arxiv.math/0604150 · pith_short_12: HIBSI375B53U · pith_short_16: HIBSI375B53U45YB · pith_short_8: HIBSI375

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/HIBSI375B53U45YBAMCW42ULZD \
  | 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: 3a03246ffd0f774e770103056e6a8bc8cd40520f4dc55bf6e7137a7befb3eb1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bf9c43af4c8e7102d1c37c885c084cf90a2b7bb2a6096c25eda1bf19527c502",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2006-04-06T18:34:32Z",
    "title_canon_sha256": "2fd25a5e82efe61963048de108bf4b66041495a0fb54ea10eb1522b3fa69ed5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0604150",
    "kind": "arxiv",
    "version": 1
  }
}