Pith Number

pith:EDPH7K5M

pith:2000:EDPH7K5MHEAGZ2B5VRKIYVTEZN

not attested not anchored not stored refs pending

Calculation of Second Topological Moment <m^2> of Two Entangled Polymers

F. Ferrari, H. Kleinert, I. Lazzizzera

arxiv:cond-mat/0003355 v1 · 2000-03-22 · cond-mat

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EDPH7K5MHEAGZ2B5VRKIYVTEZN}

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	2026-05-18T01:07:13.356910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20de7fabac39006ce83dac548c5664cb7e5ef5df8e02e0a7544bd2598cf6de68

Aliases

arxiv: cond-mat/0003355 · arxiv_version: cond-mat/0003355v1 · doi: 10.48550/arxiv.cond-mat/0003355 · pith_short_12: EDPH7K5MHEAG · pith_short_16: EDPH7K5MHEAGZ2B5 · pith_short_8: EDPH7K5M

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/EDPH7K5MHEAGZ2B5VRKIYVTEZN \
  | 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: 20de7fabac39006ce83dac548c5664cb7e5ef5df8e02e0a7544bd2598cf6de68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f6808789cd4e5d2f37aa1d045020965a928fe2bd140c3cc4f82a0a02096257c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat",
    "submitted_at": "2000-03-22T10:43:33Z",
    "title_canon_sha256": "f24f6157b9160ca1df2351738280d0d9957b9a72a31172148da3177b1ad446e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0003355",
    "kind": "arxiv",
    "version": 1
  }
}