Pith Number

pith:WTTPPB5Z

pith:2019:WTTPPB5ZLSNFDSH4LDMRL5ZNEJ

not attested not anchored not stored refs pending

On existence and uniqueness of solutions to a Boussinesq system with nonlinear and mixed boundary conditions

Andrea N. Ceretani, Carlos N. Rautenberg, Rafael Arndt

arxiv:1910.03994 v2 · 2019-10-09 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WTTPPB5ZLSNFDSH4LDMRL5ZNEJ}

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	2026-07-05T01:05:00.189963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4e6f787b95c9a51c8fc58d915f72d2244928655a4819377272df6f1334d1ec3

Aliases

arxiv: 1910.03994 · arxiv_version: 1910.03994v2 · doi: 10.48550/arxiv.1910.03994 · pith_short_12: WTTPPB5ZLSNF · pith_short_16: WTTPPB5ZLSNFDSH4 · pith_short_8: WTTPPB5Z

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/WTTPPB5ZLSNFDSH4LDMRL5ZNEJ \
  | 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: b4e6f787b95c9a51c8fc58d915f72d2244928655a4819377272df6f1334d1ec3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e28470a375b15db7460297bc2cdb00ddedbbfdc6a48a7324652e96af5b3b0036",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-10-09T14:02:24Z",
    "title_canon_sha256": "e1aba0fc62bc2d27d2afd28992c14fbbc8489457d05f0959252aa0dced54926a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.03994",
    "kind": "arxiv",
    "version": 2
  }
}