Pith Number

pith:6HTBQU56

pith:2015:6HTBQU563PRIEILEUEVTFV4HB3

not attested not anchored not stored refs pending

Birkhoff spectrum for H\'enon-like maps at the first bifurcation

Hiroki Takahasi

arxiv:1502.00090 v1 · 2015-01-31 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6HTBQU563PRIEILEUEVTFV4HB3}

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	2026-05-18T01:19:44.663730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1e61853bedbe2822164a12b32d7870ee4c35c44e41fea89103b5490881e56bc

Aliases

arxiv: 1502.00090 · arxiv_version: 1502.00090v1 · doi: 10.48550/arxiv.1502.00090 · pith_short_12: 6HTBQU563PRI · pith_short_16: 6HTBQU563PRIEILE · pith_short_8: 6HTBQU56

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/6HTBQU563PRIEILEUEVTFV4HB3 \
  | 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: f1e61853bedbe2822164a12b32d7870ee4c35c44e41fea89103b5490881e56bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1bd5383c7a1cffbf8908e7e15d905f7f54398b068349ca057bbf5fe34db588e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-01-31T11:22:25Z",
    "title_canon_sha256": "222dc69ea2f514a6cc5e22f625c0652b3d8fec23ac04513d4af0eee4fc514828"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.00090",
    "kind": "arxiv",
    "version": 1
  }
}