Pith Number

pith:YLLCYEDY

pith:2015:YLLCYEDYMCOA2VUYZO3WCFREX3

not attested not anchored not stored refs pending

Evolvability tradeoffs in emergent digital replicators

Arend Hintze, Christoph Adami, Thomas LaBar

arxiv:1511.07959 v2 · 2015-11-25 · 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{YLLCYEDYMCOA2VUYZO3WCFREX3}

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	2026-05-18T00:55:52.161804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2d62c1078609c0d5698cbb7611624bee721081e9af8fe59197174c67dab253c

Aliases

arxiv: 1511.07959 · arxiv_version: 1511.07959v2 · doi: 10.48550/arxiv.1511.07959 · pith_short_12: YLLCYEDYMCOA · pith_short_16: YLLCYEDYMCOA2VUY · pith_short_8: YLLCYEDY

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/YLLCYEDYMCOA2VUYZO3WCFREX3 \
  | 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: c2d62c1078609c0d5698cbb7611624bee721081e9af8fe59197174c67dab253c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9f0d77fbcb016765631a2b7f4a571658c713a64086db90614300b06f766af24",
    "cross_cats_sorted": [
      "nlin.AO",
      "q-bio.BM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2015-11-25T06:04:05Z",
    "title_canon_sha256": "675cc8013d8e1b0abe28743ce52860acb9ed0ad85c9b7c798daa5cf7978198a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.07959",
    "kind": "arxiv",
    "version": 2
  }
}