Pith Number

pith:SS27QM7H

pith:2020:SS27QM7H4WSBYGSVWQNUQEF6E4

not attested not anchored not stored refs pending

Impossibility of consistent distance estimation from sequence lengths under the TKF91 model

Brandon Legried, Sebastien Roch, Wai-Tong Louis Fan

arxiv:2005.11625 v1 · 2020-05-24 · math.PR · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SS27QM7H4WSBYGSVWQNUQEF6E4}

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	2026-07-05T01:47:13.736277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94b5f833e7e5a41c1a55b41b4810be2737cfbfae63fbb93d7270b11d3d5c710c

Aliases

arxiv: 2005.11625 · arxiv_version: 2005.11625v1 · doi: 10.48550/arxiv.2005.11625 · pith_short_12: SS27QM7H4WSB · pith_short_16: SS27QM7H4WSBYGSV · pith_short_8: SS27QM7H

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/SS27QM7H4WSBYGSVWQNUQEF6E4 \
  | 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: 94b5f833e7e5a41c1a55b41b4810be2737cfbfae63fbb93d7270b11d3d5c710c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4138247a16a9144d50eeb6f8b066007c2583e949984dc10f35dc8537c359e85",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2020-05-24T00:02:54Z",
    "title_canon_sha256": "32693ebf17fe6bd2b8f458519b7ff4fb4b2be0d32e2b124ebeb82f6b59f22a8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.11625",
    "kind": "arxiv",
    "version": 1
  }
}