Pith Number

pith:HX75RTAN

pith:2020:HX75RTANIADG4A7Y6OX7HBTC7F

not attested not anchored not stored refs pending

Bounds for Wave Speeds in the Riemann Problem: Direct Theoretical Estimates

A. Siviglia, E. F. Toro, L. O. M\"uller

arxiv:2005.04898 v1 · 2020-05-11 · math.NA · cs.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{HX75RTANIADG4A7Y6OX7HBTC7F}

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	2026-07-05T01:01:48.354989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3dffd8cc0d40066e03f8f3aff38662f94c12b1518972f80f19f9f46e5d7a7a50

Aliases

arxiv: 2005.04898 · arxiv_version: 2005.04898v1 · doi: 10.48550/arxiv.2005.04898 · pith_short_12: HX75RTANIADG · pith_short_16: HX75RTANIADG4A7Y · pith_short_8: HX75RTAN

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/HX75RTANIADG4A7Y6OX7HBTC7F \
  | 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: 3dffd8cc0d40066e03f8f3aff38662f94c12b1518972f80f19f9f46e5d7a7a50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8ea53bf2a5cdb4a4666f2dc0a36c061219a6534545b604129352056ed46424f",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-05-11T07:42:00Z",
    "title_canon_sha256": "2681cf3a3d4c8c3be748f74c16a71ea4fa63f485101f863e0962f1a12b382aa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.04898",
    "kind": "arxiv",
    "version": 1
  }
}