Pith Number

pith:3UFF5XWX

pith:2013:3UFF5XWXJJTDCGWE5U4PFTOX2S

not attested not anchored not stored refs pending

Pseudo-spherical Surfaces of Low Differentiability

Ivan Sterling, Josef F. Dorfmeister

arxiv:1301.5679 v1 · 2013-01-24 · 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{3UFF5XWXJJTDCGWE5U4PFTOX2S}

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	2026-05-18T03:35:37.732439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd0a5eded74a66311ac4ed38f2cdd7d48eb6afe3e82ac64508c6e832dc3fc5c0

Aliases

arxiv: 1301.5679 · arxiv_version: 1301.5679v1 · doi: 10.48550/arxiv.1301.5679 · pith_short_12: 3UFF5XWXJJTD · pith_short_16: 3UFF5XWXJJTDCGWE · pith_short_8: 3UFF5XWX

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/3UFF5XWXJJTDCGWE5U4PFTOX2S \
  | 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: dd0a5eded74a66311ac4ed38f2cdd7d48eb6afe3e82ac64508c6e832dc3fc5c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "457db8b6833fa1b4993690aa326b5a8b181513c0db9b16e5cf94e6adbbf8d62f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-01-24T00:31:21Z",
    "title_canon_sha256": "7e361648a21720fd93ed9583b1f8a7999f4d419593deb7ce39bf09a50545eacb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.5679",
    "kind": "arxiv",
    "version": 1
  }
}