Pith Number

pith:BWSWIC6H

pith:2009:BWSWIC6HGGMDD2PEZGN2YYWEPW

not attested not anchored not stored refs pending

The Spectrum of the Weakly Coupled Fibonacci Hamiltonian

Anton Gorodetski, David Damanik

arxiv:0901.4383 v1 · 2009-01-28 · math.DS · 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{BWSWIC6HGGMDD2PEZGN2YYWEPW}

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	2026-05-18T02:30:16.183002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0da5640bc7319831e9e4c99bac62c47d98b7f3dbaccb18a261d86920368605e9

Aliases

arxiv: 0901.4383 · arxiv_version: 0901.4383v1 · doi: 10.48550/arxiv.0901.4383 · pith_short_12: BWSWIC6HGGMD · pith_short_16: BWSWIC6HGGMDD2PE · pith_short_8: BWSWIC6H

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/BWSWIC6HGGMDD2PEZGN2YYWEPW \
  | 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: 0da5640bc7319831e9e4c99bac62c47d98b7f3dbaccb18a261d86920368605e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08e9b63e304d6249d89119d2480fd25f4ddfd56bad279a599f707f7da9068fe3",
    "cross_cats_sorted": [
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2009-01-28T01:11:07Z",
    "title_canon_sha256": "ce3dbf9b6c6d340db4eb95595c1eb24b3c03e293f5d3e087875b3d41ae11a6ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4383",
    "kind": "arxiv",
    "version": 1
  }
}