Pith Number

pith:PNOHZY53

pith:2015:PNOHZY53CXFEPU5Q2Z2OQPPUU6

not attested not anchored not stored refs pending

Around distance-squared mappings

Shunsuke Ichiki, Takashi Nishimura

arxiv:1503.05686 v1 · 2015-03-19 · 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{PNOHZY53CXFEPU5Q2Z2OQPPUU6}

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	2026-05-18T02:20:58.393721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b5c7ce3bb15ca47d3b0d674e83df4a78a2868b7967f6c1a150dc8a0cdd066ec

Aliases

arxiv: 1503.05686 · arxiv_version: 1503.05686v1 · doi: 10.48550/arxiv.1503.05686 · pith_short_12: PNOHZY53CXFE · pith_short_16: PNOHZY53CXFEPU5Q · pith_short_8: PNOHZY53

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/PNOHZY53CXFEPU5Q2Z2OQPPUU6 \
  | 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: 7b5c7ce3bb15ca47d3b0d674e83df4a78a2868b7967f6c1a150dc8a0cdd066ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5af33e84112876312ed7ef2579528da90d1c17defdd72e748de24ed96c3556b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-03-19T10:00:10Z",
    "title_canon_sha256": "6922cf955e76c9f46c50af6d21d06d6e55899b3b663563b8ce74e6982b09da8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.05686",
    "kind": "arxiv",
    "version": 1
  }
}