Pith Number

pith:NAMYDNQG

pith:2008:NAMYDNQG7FT3AMDVOTFC4CWNDH

not attested not anchored not stored refs pending

Correspondence of the eigenvalues of a non-self-adjoint operator to those of a self-adjoint operator

John Weir

arxiv:0801.4959 v2 · 2008-01-31 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NAMYDNQG7FT3AMDVOTFC4CWNDH}

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	2026-05-18T03:02:45.037454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

681981b606f967b0307574ca2e0acd19cac4e811a32b74b5ce693b0dd6bea161

Aliases

arxiv: 0801.4959 · arxiv_version: 0801.4959v2 · doi: 10.48550/arxiv.0801.4959 · pith_short_12: NAMYDNQG7FT3 · pith_short_16: NAMYDNQG7FT3AMDV · pith_short_8: NAMYDNQG

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/NAMYDNQG7FT3AMDVOTFC4CWNDH \
  | 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: 681981b606f967b0307574ca2e0acd19cac4e811a32b74b5ce693b0dd6bea161

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15eae5b301e3f6b7b164bafc0ddc8652ffc4574f84e30c1b79c11d8ff96cdf0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2008-01-31T19:18:49Z",
    "title_canon_sha256": "ad1abf7e14b4c56923142ff9e5e7f176d79f0dd6986674ae805c94c1219fef54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.4959",
    "kind": "arxiv",
    "version": 2
  }
}