Pith Number

pith:O6ZBSB7U

pith:2017:O6ZBSB7UPIBZ26VPYWZ3544C62

not attested not anchored not stored refs pending

The quadratic Wasserstein metric for earthquake location

Dinghui Yang, Hao Wu, Jing Chen, Yifan Chen

arxiv:1710.10447 v1 · 2017-10-28 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O6ZBSB7UPIBZ26VPYWZ3544C62}

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	2026-05-18T00:09:30.457485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77b21907f47a039d7aafc5b3bef382f6881f537e9ae309fb931a10e5c8df49f5

Aliases

arxiv: 1710.10447 · arxiv_version: 1710.10447v1 · doi: 10.48550/arxiv.1710.10447 · pith_short_12: O6ZBSB7UPIBZ · pith_short_16: O6ZBSB7UPIBZ26VP · pith_short_8: O6ZBSB7U

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/O6ZBSB7UPIBZ26VPYWZ3544C62 \
  | 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: 77b21907f47a039d7aafc5b3bef382f6881f537e9ae309fb931a10e5c8df49f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83be74186c41656459e15a2ce493b4a67cfdc4cf81e67d62a09f2c9ca95076b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-10-28T11:20:11Z",
    "title_canon_sha256": "deba850c511a0a0f784642081a9398c3c41c2e76fee27776842a56c99fb1e9ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.10447",
    "kind": "arxiv",
    "version": 1
  }
}