Pith Number

pith:Y5X4CILB

pith:2018:Y5X4CILB4TWFXO2EQ3AUSIN6JX

not attested not anchored not stored refs pending

Estimating probabilistic context-free grammars for proteins using contact map constraints

Fran\c{c}ois Coste, Juliette Talibart, Witold Dyrka

arxiv:1805.08630 v1 · 2018-05-22 · cs.FL · q-bio.BM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5X4CILB4TWFXO2EQ3AUSIN6JX}

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	2026-05-17T23:50:59.675537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c76fc12161e4ec5bbb4486c14921be4ddcda32f6e88db3d72b38eb65ee2200db

Aliases

arxiv: 1805.08630 · arxiv_version: 1805.08630v1 · doi: 10.48550/arxiv.1805.08630 · pith_short_12: Y5X4CILB4TWF · pith_short_16: Y5X4CILB4TWFXO2E · pith_short_8: Y5X4CILB

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/Y5X4CILB4TWFXO2EQ3AUSIN6JX \
  | 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: c76fc12161e4ec5bbb4486c14921be4ddcda32f6e88db3d72b38eb65ee2200db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48c08f40849499cb5b79f54f8d86beca4d0948ec3f3c8909107fade0e610436f",
    "cross_cats_sorted": [
      "q-bio.BM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2018-05-22T14:33:24Z",
    "title_canon_sha256": "8b38f02f5ac0e863ce83faca391cbdad2d49b49b2b42c10980ad2fd220243aaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08630",
    "kind": "arxiv",
    "version": 1
  }
}