Pith Number

pith:M66XPIIH

pith:2012:M66XPIIH5BIYFUV555SC42GODW

not attested not anchored not stored refs pending

Fold or die: experimental evolution in vitro

Andrew Rambaut, Sin\'ead Collins, Stephen J. Bridgett

arxiv:1211.4223 v1 · 2012-11-18 · q-bio.PE · 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{M66XPIIH5BIYFUV555SC42GODW}

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	2026-05-18T03:40:27.611743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67bd77a107e85182d2bdef642e68ce1d833202295f9a5dcdc3f8cc419bd78c49

Aliases

arxiv: 1211.4223 · arxiv_version: 1211.4223v1 · doi: 10.48550/arxiv.1211.4223 · pith_short_12: M66XPIIH5BIY · pith_short_16: M66XPIIH5BIYFUV5 · pith_short_8: M66XPIIH

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/M66XPIIH5BIYFUV555SC42GODW \
  | 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: 67bd77a107e85182d2bdef642e68ce1d833202295f9a5dcdc3f8cc419bd78c49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "169a8eaa17ebadd198e6454a9f6baf9cb28d2dc3d3a24e37da5e3629f7802fe5",
    "cross_cats_sorted": [
      "q-bio.BM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2012-11-18T15:04:29Z",
    "title_canon_sha256": "6d19ba046b6f5faafec6151541fee47e6338a4fc40faf87e2ff7b7c2209efcb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4223",
    "kind": "arxiv",
    "version": 1
  }
}