Pith Number

pith:FJEFIVSG

pith:2009:FJEFIVSGVLHNQXFADAMJSYXKRC

not attested not anchored not stored refs pending

On the Differential Operators with Periodic Matrix Coefficients

O. A. Veliev

arxiv:0903.0776 v1 · 2009-03-04 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FJEFIVSGVLHNQXFADAMJSYXKRC}

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	2026-05-18T02:14:37.321153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a48545646aaced85ca018189962ea8899f0e8c3fa2727a72b16aa333b4c07f8

Aliases

arxiv: 0903.0776 · arxiv_version: 0903.0776v1 · doi: 10.48550/arxiv.0903.0776 · pith_short_12: FJEFIVSGVLHN · pith_short_16: FJEFIVSGVLHNQXFA · pith_short_8: FJEFIVSG

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/FJEFIVSGVLHNQXFADAMJSYXKRC \
  | 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: 2a48545646aaced85ca018189962ea8899f0e8c3fa2727a72b16aa333b4c07f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eeb94d6fa52f063f7d6c3f4488ffe5a535126c2858f52b812b5a9db8e854603a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2009-03-04T14:57:29Z",
    "title_canon_sha256": "b61ee83771cea580b518fc048b795b19d801fdda9d7e0b09557380d37a7c613f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.0776",
    "kind": "arxiv",
    "version": 1
  }
}