Pith Number

pith:I3EEIT3R

pith:2014:I3EEIT3RCLBN6UKYDIJZZAHHAY

not attested not anchored not stored refs pending

Operator algebras with contractive approximate identities: Weak compactness and the spectrum

Charles John Read, David P. Blecher

arxiv:1407.1349 v1 · 2014-07-05 · math.OA · 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{I3EEIT3RCLBN6UKYDIJZZAHHAY}

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	2026-05-18T02:48:16.768483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46c8444f7112c2df51581a139c80e706266bdca52aec2e8ee547da49c6e3ef32

Aliases

arxiv: 1407.1349 · arxiv_version: 1407.1349v1 · doi: 10.48550/arxiv.1407.1349 · pith_short_12: I3EEIT3RCLBN · pith_short_16: I3EEIT3RCLBN6UKY · pith_short_8: I3EEIT3R

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/I3EEIT3RCLBN6UKYDIJZZAHHAY \
  | 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: 46c8444f7112c2df51581a139c80e706266bdca52aec2e8ee547da49c6e3ef32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "450d5d3a09e5d88ca48fd6be5a15dba3ff57df831cb8090d0e132ce6449fa7a8",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2014-07-05T00:52:12Z",
    "title_canon_sha256": "c6bd476e00a409fb1b1a1b4653a64e8b66aad49b7ec307581f61be637b2fe90c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.1349",
    "kind": "arxiv",
    "version": 1
  }
}