Pith Number

pith:L2TDD62U

pith:2019:L2TDD62U7LGW2P6QLZZ3MRMZA6

not attested not anchored not stored refs pending

Optimal Investment to Enable Evolutionary Rescue

Jaime Ashander, James N. Sanchirico, Lisa C. Thompson, Marissa L. Baskett

arxiv:1902.08827 v1 · 2019-02-23 · 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{L2TDD62U7LGW2P6QLZZ3MRMZA6}

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	2026-05-17T23:51:55.669087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ea631fb54facd6d3fd05e73b6459907b99c508a737f1c82baaf2dbb5f9a38e7

Aliases

arxiv: 1902.08827 · arxiv_version: 1902.08827v1 · doi: 10.48550/arxiv.1902.08827 · pith_short_12: L2TDD62U7LGW · pith_short_16: L2TDD62U7LGW2P6Q · pith_short_8: L2TDD62U

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/L2TDD62U7LGW2P6QLZZ3MRMZA6 \
  | 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: 5ea631fb54facd6d3fd05e73b6459907b99c508a737f1c82baaf2dbb5f9a38e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abdd0529f189ce1902af964b1a50faf336acddc38f0c4aac3d1307d169986582",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2019-02-23T18:48:29Z",
    "title_canon_sha256": "b48bcef490d878846770def51e76f91d4ff0e61b4dc66dbee8cc4d2402dad321"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08827",
    "kind": "arxiv",
    "version": 1
  }
}