Pith Number

pith:THYYCNKV

pith:2010:THYYCNKVUE55IDSWBI7GS5DQ6G

not attested not anchored not stored refs pending

Persistence of embedded eigenvalues

Ira Herbst, Sara Maad Sasane, Shmuel Agmon

arxiv:1008.2099 v2 · 2010-08-12 · math.FA · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{THYYCNKVUE55IDSWBI7GS5DQ6G}

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	2026-05-18T04:26:54.054131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99f1813555a13bd40e560a3e697470f1bfa90b973156f003aed136dc60acd8bf

Aliases

arxiv: 1008.2099 · arxiv_version: 1008.2099v2 · doi: 10.48550/arxiv.1008.2099 · pith_short_12: THYYCNKVUE55 · pith_short_16: THYYCNKVUE55IDSW · pith_short_8: THYYCNKV

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/THYYCNKVUE55IDSWBI7GS5DQ6G \
  | 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: 99f1813555a13bd40e560a3e697470f1bfa90b973156f003aed136dc60acd8bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f84cbc1886040a8146e73a7e20b5095d9a6b11d243f7e5d1c6cdccda0169f6cd",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2010-08-12T11:35:53Z",
    "title_canon_sha256": "dc28a0fc02e7dd51a0bb5a06670630e10e22ddab62a5829dff178fb2fece170d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2099",
    "kind": "arxiv",
    "version": 2
  }
}