Pith Number

pith:ZERF4OKS

pith:2017:ZERF4OKSFBLS2OXFTPO74ZIJYO

not attested not anchored not stored refs pending

Self-Adjoint Operators in Extended Hilbert Spaces $H\oplus W$: An Application of the General GKN-EM Theorem

Lance Littlejohn, Richard Wellman

arxiv:1704.06950 v1 · 2017-04-23 · 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{ZERF4OKSFBLS2OXFTPO74ZIJYO}

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	2026-05-18T00:45:55.218545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9225e395228572d3ae59bddfe6509c3a05241d6b397ec122860d9d6786af418

Aliases

arxiv: 1704.06950 · arxiv_version: 1704.06950v1 · doi: 10.48550/arxiv.1704.06950 · pith_short_12: ZERF4OKSFBLS · pith_short_16: ZERF4OKSFBLS2OXF · pith_short_8: ZERF4OKS

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/ZERF4OKSFBLS2OXFTPO74ZIJYO \
  | 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: c9225e395228572d3ae59bddfe6509c3a05241d6b397ec122860d9d6786af418

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a1749aaa930a321d14b4eb56f10c0f601a95c8da4e8c2cfa68153e3ab8b4e5d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2017-04-23T17:09:39Z",
    "title_canon_sha256": "194718bb505f1833f9a83c56579eea593ca0e8fe826c2bf98aff27188bdee5ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.06950",
    "kind": "arxiv",
    "version": 1
  }
}