Pith Number

pith:LEIF6DD6

pith:2012:LEIF6DD6KYGBKNZSKEYB2PIZ5T

not attested not anchored not stored refs pending

Towards the Recapitulation of Ancient History in the Laboratory: Combining Synthetic Biology with Experimental Evolution

Betul Kacar, Eric Gaucher

arxiv:1209.5032 v1 · 2012-09-23 · q-bio.PE · q-bio.MN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LEIF6DD6KYGBKNZSKEYB2PIZ5T}

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	2026-05-18T03:44:59.423270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59105f0c7e560c15373251301d3d19ecf7cb8424253f55abe77a8685548d8dac

Aliases

arxiv: 1209.5032 · arxiv_version: 1209.5032v1 · doi: 10.48550/arxiv.1209.5032 · pith_short_12: LEIF6DD6KYGB · pith_short_16: LEIF6DD6KYGBKNZS · pith_short_8: LEIF6DD6

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/LEIF6DD6KYGBKNZSKEYB2PIZ5T \
  | 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: 59105f0c7e560c15373251301d3d19ecf7cb8424253f55abe77a8685548d8dac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2aa4fe0f4d09473b6c3b41e35ca484cb964fe4c40423982e7a7b7ff1771fe04f",
    "cross_cats_sorted": [
      "q-bio.MN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2012-09-23T02:15:22Z",
    "title_canon_sha256": "3bd9b83e60fd0e0a0b75a4e41e41582ab391a381637371931f91d0026a4d4bff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.5032",
    "kind": "arxiv",
    "version": 1
  }
}