Pith Number

pith:SVHPB7FC

pith:2008:SVHPB7FCZRML2JIGHZTO4DBAGP

not attested not anchored not stored refs pending

On the Law of Directionality of Genome Evolution

Liaofu Luo

arxiv:0805.1085 v2 · 2008-05-08 · q-bio.GN · q-bio.CB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SVHPB7FCZRML2JIGHZTO4DBAGP}

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	2026-05-18T04:16:20.652945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

954ef0fca2cc58bd25063e66ee0c2033f72e07215483ba621d586e56e21a8275

Aliases

arxiv: 0805.1085 · arxiv_version: 0805.1085v2 · doi: 10.48550/arxiv.0805.1085 · pith_short_12: SVHPB7FCZRML · pith_short_16: SVHPB7FCZRML2JIG · pith_short_8: SVHPB7FC

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/SVHPB7FCZRML2JIGHZTO4DBAGP \
  | 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: 954ef0fca2cc58bd25063e66ee0c2033f72e07215483ba621d586e56e21a8275

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15ec0c404c44f64e10f16a8a38638b4e77b4b2b007297c38ef5dcf8bb8603ac1",
    "cross_cats_sorted": [
      "q-bio.CB"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.GN",
    "submitted_at": "2008-05-08T01:13:20Z",
    "title_canon_sha256": "97f1c6948b3435d07a177dd8d3f33cd94d217e4715e30b4da4d3c22edf6c7d64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.1085",
    "kind": "arxiv",
    "version": 2
  }
}