Pith Number

pith:5SIGB6YN

pith:2015:5SIGB6YNDVT6LTSZP2PEA7NNVY

not attested not anchored not stored refs pending

Nonexistence of decreasing equisingular approximations with logarithmic poles

Qi'an Guan

arxiv:1506.04581 v2 · 2015-06-15 · math.CV · 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{5SIGB6YNDVT6LTSZP2PEA7NNVY}

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	2026-05-18T01:41:45.854299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec9060fb0d1d67e5ce597e9e407dadae32e14c87b768515f0c2221da0c360d09

Aliases

arxiv: 1506.04581 · arxiv_version: 1506.04581v2 · doi: 10.48550/arxiv.1506.04581 · pith_short_12: 5SIGB6YNDVT6 · pith_short_16: 5SIGB6YNDVT6LTSZ · pith_short_8: 5SIGB6YN

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/5SIGB6YNDVT6LTSZP2PEA7NNVY \
  | 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: ec9060fb0d1d67e5ce597e9e407dadae32e14c87b768515f0c2221da0c360d09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1dab36b358e6cea52fbd4f4f03634c2c7e42043c2a9ab33a168f2e5323a77729",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2015-06-15T13:05:04Z",
    "title_canon_sha256": "91e8703cb474affe03a654f47ee6f7ff57770142d80b8dc501392e15ae63428c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.04581",
    "kind": "arxiv",
    "version": 2
  }
}