pith. sign in
Pith Number

pith:GQ6OHRSJ

pith:2013:GQ6OHRSJXFWPOBEELWEFNTEUQQ
not attested not anchored not stored refs pending

Twist neutrality, a zero sum rule for oriented closed space curves with applications to circular DNA

Jakob Bohr, Kasper W. Olsen

arxiv:1301.1335 v3 · 2013-01-06 · physics.bio-ph · q-bio.BM

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{GQ6OHRSJXFWPOBEELWEFNTEUQQ}

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 2026-05-18T03:06:13.589443Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

343ce3c649b96cf704845d8856cc948412897bc4132c557a8e515e5c12e9cdff

Aliases

arxiv: 1301.1335 · arxiv_version: 1301.1335v3 · doi: 10.48550/arxiv.1301.1335 · pith_short_12: GQ6OHRSJXFWP · pith_short_16: GQ6OHRSJXFWPOBEE · pith_short_8: GQ6OHRSJ
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/GQ6OHRSJXFWPOBEELWEFNTEUQQ \
  | 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: 343ce3c649b96cf704845d8856cc948412897bc4132c557a8e515e5c12e9cdff
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "281b9bd682ea819534d9ac03258d6df1a4903f2baca3eba2ba2d85e82c9da3ad",
    "cross_cats_sorted": [
      "q-bio.BM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2013-01-06T17:21:33Z",
    "title_canon_sha256": "2cacfb1c3dac941cc92942634ad3767956c5bb57e516e4af4d73eeda14338d74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1335",
    "kind": "arxiv",
    "version": 3
  }
}