Pith Number

pith:DL5O7Q2Q

pith:2014:DL5O7Q2QYRTRHVQVPJALPFYXW5

not attested not anchored not stored refs pending

Special Classes of Meridian Surfaces in the Four-dimensional Euclidean Space

Georgi Ganchev, Velichka Milousheva

arxiv:1402.5848 v1 · 2014-02-24 · 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{DL5O7Q2QYRTRHVQVPJALPFYXW5}

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	2026-05-18T01:22:08.694181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1afaefc350c46713d6157a40b79717b761002defdd1a0693d2f3471a3c9d9a48

Aliases

arxiv: 1402.5848 · arxiv_version: 1402.5848v1 · doi: 10.48550/arxiv.1402.5848 · pith_short_12: DL5O7Q2QYRTR · pith_short_16: DL5O7Q2QYRTRHVQV · pith_short_8: DL5O7Q2Q

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/DL5O7Q2QYRTRHVQVPJALPFYXW5 \
  | 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: 1afaefc350c46713d6157a40b79717b761002defdd1a0693d2f3471a3c9d9a48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "395e90c4726208481ba51c6812b2526b60b822eff0a013e4882bed27b8a6c4d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-02-24T15:06:16Z",
    "title_canon_sha256": "d64e5bd3d8c8f2bc4a3a862ba1cc740e825155e1aa75234a77fc780597d329c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.5848",
    "kind": "arxiv",
    "version": 1
  }
}