Pith Number

pith:SAPCUCNX

pith:2024:SAPCUCNXYZI7FVFEXKHFLC6CWE

not attested not anchored not stored refs pending

Can solvents tie knots? Helical folds of biopolymers in liquid environments

Myfanwy E. Evans, Rhoslyn Coles

arxiv:2412.20181 v2 · 2024-12-28 · cond-mat.soft · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SAPCUCNXYZI7FVFEXKHFLC6CWE}

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	2026-07-05T11:21:39.854097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

901e2a09b7c651f2d4a4ba8e558bc2b11b79130463cd5c6b9b8c8d721ad33564

Aliases

arxiv: 2412.20181 · arxiv_version: 2412.20181v2 · doi: 10.48550/arxiv.2412.20181 · pith_short_12: SAPCUCNXYZI7 · pith_short_16: SAPCUCNXYZI7FVFE · pith_short_8: SAPCUCNX

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/SAPCUCNXYZI7FVFEXKHFLC6CWE \
  | 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: 901e2a09b7c651f2d4a4ba8e558bc2b11b79130463cd5c6b9b8c8d721ad33564

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "013d1b9d03ff35e6b79e5a68b317c8564c874b220fa27da99a99243ad33b65a6",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2024-12-28T15:37:36Z",
    "title_canon_sha256": "a43fa35ecd5188d7fbb3d1ff0d20d5fd9a322158d1b0d801f19aa60d997ba600"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.20181",
    "kind": "arxiv",
    "version": 2
  }
}