Pith Number

pith:ALDM5POK

pith:2015:ALDM5POKYTK5U3UN4E5LWBDJFW

not attested not anchored not stored refs pending

Valid plane trees: Combinatorial models for RNA secondary structures with Watson-Crick base pairs

Elizabeth Drellich, Frances Black, Julianna Tymoczko

arxiv:1501.03238 v2 · 2015-01-14 · math.CO · 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{ALDM5POKYTK5U3UN4E5LWBDJFW}

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	2026-05-18T00:41:53.972865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02c6cebdcac4d5da6e8de13abb04692d9a597564731f550e1a8dad432ad9ef65

Aliases

arxiv: 1501.03238 · arxiv_version: 1501.03238v2 · doi: 10.48550/arxiv.1501.03238 · pith_short_12: ALDM5POKYTK5 · pith_short_16: ALDM5POKYTK5U3UN · pith_short_8: ALDM5POK

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/ALDM5POKYTK5U3UN4E5LWBDJFW \
  | 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: 02c6cebdcac4d5da6e8de13abb04692d9a597564731f550e1a8dad432ad9ef65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8904669768f14516a389fd37e3cd2dc042f41539620e3db8fecd779d7e1bd2d7",
    "cross_cats_sorted": [
      "q-bio.BM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-01-14T04:05:23Z",
    "title_canon_sha256": "a62c1b15ea1a3c3d85ccd581088458f2ef7ff661765bd32cd10f52ad08b824d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03238",
    "kind": "arxiv",
    "version": 2
  }
}