Pith Number

pith:S4HKP6GI

pith:2015:S4HKP6GISR2ZPTTBEWURDNVCXK

not attested not anchored not stored refs pending

Pair of associated Schouten-van Kampen connections adapted to an almost contact B-metric structure

Mancho Manev

arxiv:1504.05330 v1 · 2015-04-21 · 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{S4HKP6GISR2ZPTTBEWURDNVCXK}

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	2026-05-18T01:23:58.397025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

970ea7f8c8947597ce6125a911b6a2ba844a20ee5a8175542508c83af91992d0

Aliases

arxiv: 1504.05330 · arxiv_version: 1504.05330v1 · doi: 10.48550/arxiv.1504.05330 · pith_short_12: S4HKP6GISR2Z · pith_short_16: S4HKP6GISR2ZPTTB · pith_short_8: S4HKP6GI

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/S4HKP6GISR2ZPTTBEWURDNVCXK \
  | 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: 970ea7f8c8947597ce6125a911b6a2ba844a20ee5a8175542508c83af91992d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9efd4c2a2bdc9c58aa9e571ca96b1715b50014c2c54344d9899b86c77cdc9786",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-04-21T08:15:02Z",
    "title_canon_sha256": "2c5ce30fb9fb777288a41dc05be97ed5f367e1ab6a641fdaf824ad4e239515c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05330",
    "kind": "arxiv",
    "version": 1
  }
}