Pith Number

pith:IFUBM47V

pith:2016:IFUBM47VB3OFU4KO4LRNEHP2X3

not attested not anchored not stored refs pending

Uniqueness of closed self-similar solutions to the Gauss curvature flow

Kyeongsu Choi, Panagiota Daskalopoulos

arxiv:1609.05487 v1 · 2016-09-18 · 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{IFUBM47VB3OFU4KO4LRNEHP2X3}

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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.

Cited by

1 paper in Pith

Contraction of hypersurfaces with positive sectional curvature in hyperbolic space

Receipt and verification

First computed	2026-05-18T01:04:26.283121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41681673f50edc5a714ee2e2d21dfabecd4c02cff3fd4d989291c072b25cea37

Aliases

arxiv: 1609.05487 · arxiv_version: 1609.05487v1 · doi: 10.48550/arxiv.1609.05487 · pith_short_12: IFUBM47VB3OF · pith_short_16: IFUBM47VB3OFU4KO · pith_short_8: IFUBM47V

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/IFUBM47VB3OFU4KO4LRNEHP2X3 \
  | 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: 41681673f50edc5a714ee2e2d21dfabecd4c02cff3fd4d989291c072b25cea37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a10c00cb04ec46172e1d3b55a89e065ab5a95b6f088e37512b82035451b80f73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-09-18T14:02:50Z",
    "title_canon_sha256": "41b1ddeddc260c58a585607e73cd9d92a6949b44c8008ee6773e3ffbc3bb2bb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.05487",
    "kind": "arxiv",
    "version": 1
  }
}