Pith Number

pith:NT4LTQLQ

pith:2006:NT4LTQLQI4CMZIBEA2UDIKKYAF

not attested not anchored not stored refs pending

Operator calculus approach to solving analytic systems

Ph. Feinsilver, R. Schott

arxiv:math/0607649 v1 · 2006-07-26 · math.CA · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NT4LTQLQI4CMZIBEA2UDIKKYAF}

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	2026-05-18T04:29:33.984027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cf8b9c1704704cca02406a8342958016652c7c452b471792feae1212320cae4

Aliases

arxiv: math/0607649 · arxiv_version: math/0607649v1 · doi: 10.48550/arxiv.math/0607649 · pith_short_12: NT4LTQLQI4CM · pith_short_16: NT4LTQLQI4CMZIBE · pith_short_8: NT4LTQLQ

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/NT4LTQLQI4CMZIBEA2UDIKKYAF \
  | 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: 6cf8b9c1704704cca02406a8342958016652c7c452b471792feae1212320cae4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d115090ea70821dd0e6d86fe5f1a2892d3793cebf778332185eabb63794e40e0",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "",
    "primary_cat": "math.CA",
    "submitted_at": "2006-07-26T03:28:38Z",
    "title_canon_sha256": "d6078d019f56961052b72fbce1f168c21533aaa1c6fa70a4e983e13a2973357e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0607649",
    "kind": "arxiv",
    "version": 1
  }
}