Pith Number

pith:FCAG2GZ4

pith:2004:FCAG2GZ4LJ5LTYTAJDX25AND5O

not attested not anchored not stored refs pending

Differentiation matrices for meromorphic functions

Claudio Meneses, Rafael G. Campos

arxiv:math/0407020 v2 · 2004-07-01 · math.NA · cs.NA · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FCAG2GZ4LJ5LTYTAJDX25AND5O}

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	2026-06-03T22:06:15.390606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28806d1b3c5a7ab9e26048efae81a3eb9a9df7612ec24e4ea90c7aac2805149e

Aliases

arxiv: math/0407020 · arxiv_version: math/0407020v2 · doi: 10.48550/arxiv.math/0407020 · pith_short_12: FCAG2GZ4LJ5L · pith_short_16: FCAG2GZ4LJ5LTYTA · pith_short_8: FCAG2GZ4

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/FCAG2GZ4LJ5LTYTAJDX25AND5O \
  | 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: 28806d1b3c5a7ab9e26048efae81a3eb9a9df7612ec24e4ea90c7aac2805149e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d72806d171b783b881fc30a8c7838d5c1a88dc0a7f22126088acd30fec84eb50",
    "cross_cats_sorted": [
      "cs.NA",
      "math.CA"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2004-07-01T21:55:07Z",
    "title_canon_sha256": "23a6030d3b9e357a90cdc4eb8c675472dd11bb3158d235c63273d5ee91169d77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0407020",
    "kind": "arxiv",
    "version": 2
  }
}