Pith Number

pith:B4HUAGMQ

pith:2014:B4HUAGMQDFHL5LPRL3I7KTATJI

not attested not anchored not stored refs pending

Meridian Surfaces of Elliptic or Hyperbolic Type in the Four-dimensional Minkowski Space

Georgi Ganchev, Velichka Milousheva

arxiv:1402.6112 v1 · 2014-02-25 · 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{B4HUAGMQDFHL5LPRL3I7KTATJI}

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	2026-05-18T01:11:05.367562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f0f401990194ebeadf15ed1f54c134a1fd78afcfe63865c25f1937cce124c67

Aliases

arxiv: 1402.6112 · arxiv_version: 1402.6112v1 · doi: 10.48550/arxiv.1402.6112 · pith_short_12: B4HUAGMQDFHL · pith_short_16: B4HUAGMQDFHL5LPR · pith_short_8: B4HUAGMQ

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/B4HUAGMQDFHL5LPRL3I7KTATJI \
  | 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: 0f0f401990194ebeadf15ed1f54c134a1fd78afcfe63865c25f1937cce124c67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eca8cf85ff9200b9233ce08629640b89346c9c5e02102baf54d1d1d6c9ab9415",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-02-25T10:04:21Z",
    "title_canon_sha256": "f9c68687805182bccea46671d59f145004723f3970637c4712362b141dc29d8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.6112",
    "kind": "arxiv",
    "version": 1
  }
}