Pith Number

pith:SEU7V3NC

pith:2017:SEU7V3NCA5GIRMO4TZLVBGXK6W

not attested not anchored not stored refs pending

Meridian Surfaces on Rotational Hypersurfaces with Lightlike Axis in ${\mathbb E}^4_2$

Velichka Milousheva

arxiv:1705.06991 v1 · 2017-05-18 · 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{SEU7V3NCA5GIRMO4TZLVBGXK6W}

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	2026-05-18T00:04:32.561567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9129faeda2074c88b1dc9e57509aeaf5af5f6df8a6ff0e56334c49173f68a752

Aliases

arxiv: 1705.06991 · arxiv_version: 1705.06991v1 · doi: 10.48550/arxiv.1705.06991 · pith_short_12: SEU7V3NCA5GI · pith_short_16: SEU7V3NCA5GIRMO4 · pith_short_8: SEU7V3NC

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/SEU7V3NCA5GIRMO4TZLVBGXK6W \
  | 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: 9129faeda2074c88b1dc9e57509aeaf5af5f6df8a6ff0e56334c49173f68a752

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80dd230c24a31c203e22807e3c9a5b818452c8269f5b1cdc387defe783f1c867",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-05-18T07:50:52Z",
    "title_canon_sha256": "e3c3eae4c10f5a37e921ad420261d98cd79c77e7e0c3350d248d341bc2f76293"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06991",
    "kind": "arxiv",
    "version": 1
  }
}