Pith Number

pith:RBCFXO5C

pith:2019:RBCFXO5CD53XNXHHJRUOZR2BTX

not attested not anchored not stored refs pending

An algebraic approach for solving fourth-order partial differential equations

A. Pogorui, R. M. Rodriguez-Dagnino, T. Kolomiiets

arxiv:1907.08869 v1 · 2019-07-20 · 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{RBCFXO5CD53XNXHHJRUOZR2BTX}

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	2026-05-17T23:40:02.923437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88445bbba21f7776dce74c68ecc7419ddbd1602b360ddb5bd4883f4db5bf3c3a

Aliases

arxiv: 1907.08869 · arxiv_version: 1907.08869v1 · doi: 10.48550/arxiv.1907.08869 · pith_short_12: RBCFXO5CD53X · pith_short_16: RBCFXO5CD53XNXHH · pith_short_8: RBCFXO5C

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/RBCFXO5CD53XNXHHJRUOZR2BTX \
  | 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: 88445bbba21f7776dce74c68ecc7419ddbd1602b360ddb5bd4883f4db5bf3c3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5393330b6a1b57d34515027a96dcd6dd8d80fa53e65ecdc98a6ca51a71b36e2b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-07-20T22:06:34Z",
    "title_canon_sha256": "5e53e8ca6717bb0714c00e6295386e24457ed7a13a98571dba5adf8a79daabbd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08869",
    "kind": "arxiv",
    "version": 1
  }
}