Pith Number

pith:UDSM7XL4

pith:2017:UDSM7XL4BAJT5R2NE6FRI42ZQZ

not attested not anchored not stored refs pending

Designing RNA Secondary Structures is Hard

\'Edouard Bonnet, Florian Sikora, Pawe{\l} Rz\k{a}\.zewski

arxiv:1710.11513 v2 · 2017-10-31 · cs.DS · math.CO · q-bio.BM · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UDSM7XL4BAJT5R2NE6FRI42ZQZ}

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	2026-05-18T00:20:16.605363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0e4cfdd7c08133ec74d278b147359867b2788f1db73212109b916b418fa53b6

Aliases

arxiv: 1710.11513 · arxiv_version: 1710.11513v2 · doi: 10.48550/arxiv.1710.11513 · pith_short_12: UDSM7XL4BAJT · pith_short_16: UDSM7XL4BAJT5R2N · pith_short_8: UDSM7XL4

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/UDSM7XL4BAJT5R2NE6FRI42ZQZ \
  | 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: a0e4cfdd7c08133ec74d278b147359867b2788f1db73212109b916b418fa53b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c448010cd987022e9a3933ef783860088a628b18c489140d79db8ea53d350782",
    "cross_cats_sorted": [
      "math.CO",
      "q-bio.BM",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-10-31T14:37:05Z",
    "title_canon_sha256": "eeca226e3de679d77381ef486ac0a15cb495f7f7f642dfdae4990b0af5ae347d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.11513",
    "kind": "arxiv",
    "version": 2
  }
}