Pith Number

pith:SIFNSCMM

pith:2007:SIFNSCMM4M4ABJXA5ENNK65IJ5

not attested not anchored not stored refs pending

Period-two cycles in a feed-forward layered neural network model with symmetric sequence processing

F. L. Metz, W. K. Theumann

arxiv:0704.2580 v1 · 2007-04-19 · cond-mat.dis-nn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SIFNSCMM4M4ABJXA5ENNK65IJ5}

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	2026-05-18T02:16:31.637869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

920ad9098ce33800a6e0e91ad57ba84f6ddac94cb54c05f82563b4a46954544c

Aliases

arxiv: 0704.2580 · arxiv_version: 0704.2580v1 · doi: 10.48550/arxiv.0704.2580 · pith_short_12: SIFNSCMM4M4A · pith_short_16: SIFNSCMM4M4ABJXA · pith_short_8: SIFNSCMM

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/SIFNSCMM4M4ABJXA5ENNK65IJ5 \
  | 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: 920ad9098ce33800a6e0e91ad57ba84f6ddac94cb54c05f82563b4a46954544c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5e5ebf2f3732d6aa60d80489b418e5d5c3384602d43386f0d6b6955e5585653",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.dis-nn",
    "submitted_at": "2007-04-19T18:23:25Z",
    "title_canon_sha256": "d14390cf44646db35ce4f06559b5afae18f6dea06544f648d64096afb0a11adf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.2580",
    "kind": "arxiv",
    "version": 1
  }
}