Pith Number

pith:PMKR6RIP

pith:2013:PMKR6RIPPKYTKZRLE3RVI7HA27

not attested not anchored not stored refs pending

Strong Purifying Selection at Synonymous Sites in D. melanogaster

David S. Lawrie, Dmitri A. Petrov, Philipp W. Messer, Ruth Hershberg

arxiv:1301.3325 v1 · 2013-01-15 · q-bio.PE · q-bio.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PMKR6RIPPKYTKZRLE3RVI7HA27}

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	2026-05-18T03:21:08.213036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b151f450f7ab135662b26e3547ce0d7f66b4f11c68f2c76c43fda0413d02c7b

Aliases

arxiv: 1301.3325 · arxiv_version: 1301.3325v1 · doi: 10.48550/arxiv.1301.3325 · pith_short_12: PMKR6RIPPKYT · pith_short_16: PMKR6RIPPKYTKZRL · pith_short_8: PMKR6RIP

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/PMKR6RIPPKYTKZRLE3RVI7HA27 \
  | 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: 7b151f450f7ab135662b26e3547ce0d7f66b4f11c68f2c76c43fda0413d02c7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c34acff4fe6abacc62e296200d8848d208bcda313b940de1083633287a66753",
    "cross_cats_sorted": [
      "q-bio.GN"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-01-15T12:49:27Z",
    "title_canon_sha256": "873dc4139a4bd1dfe1b2eac4aa8b94d333dc8019f754236a43cebcf0ada34742"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3325",
    "kind": "arxiv",
    "version": 1
  }
}