Pith Number

pith:HPIE5VRB

pith:2013:HPIE5VRBVFQ62EY3LR2GLGWW42

not attested not anchored not stored refs pending

The inevitability of unconditionally deleterious substitutions during adaptation

Charles L. Epstein, David M. McCandlish, Joshua B. Plotkin

arxiv:1309.1152 v2 · 2013-09-04 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HPIE5VRBVFQ62EY3LR2GLGWW42}

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	2026-05-18T02:25:26.720204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bd04ed621a961ed131b5c74659ad6e6be44c7c7fe4e2d5f419446534277d329

Aliases

arxiv: 1309.1152 · arxiv_version: 1309.1152v2 · doi: 10.48550/arxiv.1309.1152 · pith_short_12: HPIE5VRBVFQ6 · pith_short_16: HPIE5VRBVFQ62EY3 · pith_short_8: HPIE5VRB

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/HPIE5VRBVFQ62EY3LR2GLGWW42 \
  | 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: 3bd04ed621a961ed131b5c74659ad6e6be44c7c7fe4e2d5f419446534277d329

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f608afb33995120f22ca3fbc31c80fbab7dd319598b437fdf17cc5adff9bc6e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-09-04T19:55:33Z",
    "title_canon_sha256": "2e2b8138ef15c58789a569b418d7da8237fc94a86cb008224f1fe3823e03b383"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1152",
    "kind": "arxiv",
    "version": 2
  }
}