Pith Number

pith:UIDHXXPE

pith:2009:UIDHXXPEWYQNWXW7FGCLNKIRXI

not attested not anchored not stored refs pending

Characterising weakly almost periodic functionals on the measure algebra

Matthew Daws

arxiv:0904.0436 v2 · 2009-04-02 · 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{UIDHXXPEWYQNWXW7FGCLNKIRXI}

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	2026-05-18T04:16:53.750058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2067bdde4b620db5edf2984b6a911ba32f1fd977359825dd9d051f28191a0cb

Aliases

arxiv: 0904.0436 · arxiv_version: 0904.0436v2 · doi: 10.48550/arxiv.0904.0436 · pith_short_12: UIDHXXPEWYQN · pith_short_16: UIDHXXPEWYQNWXW7 · pith_short_8: UIDHXXPE

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/UIDHXXPEWYQNWXW7FGCLNKIRXI \
  | 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: a2067bdde4b620db5edf2984b6a911ba32f1fd977359825dd9d051f28191a0cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "952c937a7070cc1f3c0e9bbfc233e382c90635e19aac5a768c6f9b6b41c5fa3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2009-04-02T18:11:32Z",
    "title_canon_sha256": "080a5fdc49dcbcb7ba8162c83b74c5227171ff2c8f2713e71c63787faa9af263"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0436",
    "kind": "arxiv",
    "version": 2
  }
}