Pith Number

pith:G46PBYV6

pith:2015:G46PBYV6SIZ4CESOY2XYA3L2BB

not attested not anchored not stored refs pending

The nonuniqueness of the tangent cones at infinity of Ricci-flat manifolds

Kota Hattori

arxiv:1503.07278 v2 · 2015-03-25 · 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{G46PBYV6SIZ4CESOY2XYA3L2BB}

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	2026-05-18T00:21:00.539867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

373cf0e2be9233c1124ec6af806d7a085fe93c102564a63392d9c1ac2b217a7c

Aliases

arxiv: 1503.07278 · arxiv_version: 1503.07278v2 · doi: 10.48550/arxiv.1503.07278 · pith_short_12: G46PBYV6SIZ4 · pith_short_16: G46PBYV6SIZ4CESO · pith_short_8: G46PBYV6

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/G46PBYV6SIZ4CESOY2XYA3L2BB \
  | 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: 373cf0e2be9233c1124ec6af806d7a085fe93c102564a63392d9c1ac2b217a7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a73f4bf9e648a9ec52b07d1175f1b81723a627c095a7edf6aa987ac1aecc6a5d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-03-25T04:57:56Z",
    "title_canon_sha256": "7c3c4a5c94b529c5fbd495e80cc615cde561cd5aad0859c27e5cb45c7cadeaab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07278",
    "kind": "arxiv",
    "version": 2
  }
}