Pith Number

pith:YQBYI5LM

pith:2015:YQBYI5LMETBV6BR4DKCW74G36W

not attested not anchored not stored refs pending

Does self-replication imply evolvability?

Arend Hintze, Christoph Adami, Thomas LaBar

arxiv:1507.01903 v1 · 2015-07-07 · q-bio.PE · nlin.AO · 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{YQBYI5LMETBV6BR4DKCW74G36W}

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	2026-05-18T01:26:42.384212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c40384756c24c35f063c1a856ff0dbf5b7b24290a03e18a12d44684ec0e46342

Aliases

arxiv: 1507.01903 · arxiv_version: 1507.01903v1 · doi: 10.48550/arxiv.1507.01903 · pith_short_12: YQBYI5LMETBV · pith_short_16: YQBYI5LMETBV6BR4 · pith_short_8: YQBYI5LM

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/YQBYI5LMETBV6BR4DKCW74G36W \
  | 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: c40384756c24c35f063c1a856ff0dbf5b7b24290a03e18a12d44684ec0e46342

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff8b074759b9395de249be3e4f115b03eac8b65814dcefc2bbb2f211e520a427",
    "cross_cats_sorted": [
      "nlin.AO",
      "q-bio.BM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2015-07-07T18:01:24Z",
    "title_canon_sha256": "917230ed7c07184c4d8f5cfa3fc48dbb15e7e8f13e41f104ecb3e8e4a710e0aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01903",
    "kind": "arxiv",
    "version": 1
  }
}