Pith Number

pith:FAOSXU5Z

pith:2015:FAOSXU5ZTXEJAK775UWNVVNMML

not attested not anchored not stored refs pending

Some surfaces with non-polyhedral nef cones

Ashwath Rabindranath

arxiv:1502.06061 v1 · 2015-02-21 · 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{FAOSXU5ZTXEJAK775UWNVVNMML}

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	2026-05-18T02:26:38.192204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

281d2bd3b99dc8902bffed2cdad5ac62c9939db0559eff97d950d173bb475983

Aliases

arxiv: 1502.06061 · arxiv_version: 1502.06061v1 · doi: 10.48550/arxiv.1502.06061 · pith_short_12: FAOSXU5ZTXEJ · pith_short_16: FAOSXU5ZTXEJAK77 · pith_short_8: FAOSXU5Z

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/FAOSXU5ZTXEJAK775UWNVVNMML \
  | 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: 281d2bd3b99dc8902bffed2cdad5ac62c9939db0559eff97d950d173bb475983

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8a87b4fc89cd8bb7f8c989da6ffab6bf56e3a0bc5ba6bf3d9f511f6213829eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-02-21T03:26:01Z",
    "title_canon_sha256": "1081a2c5cfdd72fd39e991c424ad9b8c89620e407f26638aafe27a5eef9a02aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06061",
    "kind": "arxiv",
    "version": 1
  }
}