Pith Number

pith:QPWQDBP3

pith:2018:QPWQDBP3OTVVICUEHMSEKJDRMW

not attested not anchored not stored refs pending

Normal harmonic mappings

Hugo Arbel\'aez, Rodrigo Hern\'andez, Willy Sierra

arxiv:1804.02945 v1 · 2018-04-09 · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPWQDBP3OTVVICUEHMSEKJDRMW}

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	2026-05-18T00:18:57.877787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83ed0185fb74eb540a843b2445247165a4c4ad448781897669c6156baf6c499b

Aliases

arxiv: 1804.02945 · arxiv_version: 1804.02945v1 · doi: 10.48550/arxiv.1804.02945 · pith_short_12: QPWQDBP3OTVV · pith_short_16: QPWQDBP3OTVVICUE · pith_short_8: QPWQDBP3

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/QPWQDBP3OTVVICUEHMSEKJDRMW \
  | 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: 83ed0185fb74eb540a843b2445247165a4c4ad448781897669c6156baf6c499b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c92e3f8da98300e9de53b286366eaf4f41e6bdce533dd3dab51b300ccfd98b8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2018-04-09T12:47:29Z",
    "title_canon_sha256": "57cfc401f89e1e009c30b49da73b6bf906b13d1fdaa0dc56575c3c38863ad54c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02945",
    "kind": "arxiv",
    "version": 1
  }
}