Pith Number

pith:UWB7XT6Z

pith:2017:UWB7XT6ZBAWOONWZACO467LK4T

not attested not anchored not stored refs pending

Semistable rank 2 sheaves with singularities of mixed dimension on $\mathbb{P}^3$

Alexander S. Tikhomirov, Alexey N. Ivanov

arxiv:1703.04851 v2 · 2017-03-15 · 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{UWB7XT6ZBAWOONWZACO467LK4T}

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	2026-05-18T00:18:20.514832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a583fbcfd9082ce736d9009dcf7d6ae4f3eb49e4634aa430a04b4df77be263b8

Aliases

arxiv: 1703.04851 · arxiv_version: 1703.04851v2 · doi: 10.48550/arxiv.1703.04851 · pith_short_12: UWB7XT6ZBAWO · pith_short_16: UWB7XT6ZBAWOONWZ · pith_short_8: UWB7XT6Z

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/UWB7XT6ZBAWOONWZACO467LK4T \
  | 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: a583fbcfd9082ce736d9009dcf7d6ae4f3eb49e4634aa430a04b4df77be263b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2caaa1db9669a0854938ab6e281d3cce1a36c57f00a4aa6b01f69eac9c9ed55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-03-15T00:32:02Z",
    "title_canon_sha256": "2c454e76ba38dc8653f7ee02fb214066cdfc65598e595ab1a9c4662099dc3c60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.04851",
    "kind": "arxiv",
    "version": 2
  }
}