Pith Number

pith:5TQ22LDP

pith:2018:5TQ22LDPTU42ML3BNNDGJ7AR5A

not attested not anchored not stored refs pending

Geometry of extended Bianchi-Cartan-Vranceanu spaces

Ana D. Tarr\'io, Angel Ferr\'andez, Antonio M. Naveira

arxiv:1802.00106 v1 · 2018-01-31 · 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{5TQ22LDPTU42ML3BNNDGJ7AR5A}

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	2026-05-18T00:24:36.785707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ece1ad2c6f9d39a62f616b4664fc11e81943554effb6ab134adc1f4520f78dde

Aliases

arxiv: 1802.00106 · arxiv_version: 1802.00106v1 · doi: 10.48550/arxiv.1802.00106 · pith_short_12: 5TQ22LDPTU42 · pith_short_16: 5TQ22LDPTU42ML3B · pith_short_8: 5TQ22LDP

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/5TQ22LDPTU42ML3BNNDGJ7AR5A \
  | 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: ece1ad2c6f9d39a62f616b4664fc11e81943554effb6ab134adc1f4520f78dde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "754f9d99c4e32bc7714fe889b9ab09a68e6b98697b1dc450151bc01988677075",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-01-31T23:59:07Z",
    "title_canon_sha256": "63b51bd22e14cbac5036e1d55ba9387343047905a83e20197e3d642e151bbccc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.00106",
    "kind": "arxiv",
    "version": 1
  }
}