Pith Number

pith:TC7WDRQ3

pith:2017:TC7WDRQ3ZB4CN25VN4V75EHAYP

not attested not anchored not stored refs pending

The decomposition of almost paracontact metric manifolds in eleven classes revisited

Galia Nakova, Simeon Zamkovoy

arxiv:1705.10179 v2 · 2017-05-29 · 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{TC7WDRQ3ZB4CN25VN4V75EHAYP}

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	2026-05-18T00:33:06.546594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98bf61c61bc87826ebb56f2bfe90e0c3c9c4387dbb02edf867f29592e3564de8

Aliases

arxiv: 1705.10179 · arxiv_version: 1705.10179v2 · doi: 10.48550/arxiv.1705.10179 · pith_short_12: TC7WDRQ3ZB4C · pith_short_16: TC7WDRQ3ZB4CN25V · pith_short_8: TC7WDRQ3

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/TC7WDRQ3ZB4CN25VN4V75EHAYP \
  | 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: 98bf61c61bc87826ebb56f2bfe90e0c3c9c4387dbb02edf867f29592e3564de8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90bbbd2f3d9f1c5a0ab9f286ee70ec46caded97824cb378ba265a3ce00606846",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-05-29T13:38:47Z",
    "title_canon_sha256": "37ab4833338911e3f1d4fb0badf45d0aa1c8b5e7623e2e40d26250b2f256886f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.10179",
    "kind": "arxiv",
    "version": 2
  }
}