Pith Number

pith:L4F3QZQF

pith:2026:L4F3QZQFOBCVKU7RVRTL6GPG4Y

not attested not anchored not stored refs pending

You ain't seen nothing, and yet: Future biochemical concentrations can be predicted with surprisingly high accuracy

Ilya Nemenman, Ketevan Danelia, Sean A. Ridout

arxiv:2602.00261 v2 · 2026-01-30 · physics.bio-ph · 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{L4F3QZQFOBCVKU7RVRTL6GPG4Y}

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	2026-07-03T01:16:51.507761Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f0bb8660570455553f1ac66bf19e6e60a1209703bd69a6d32fe7152216bad7b

Aliases

arxiv: 2602.00261 · arxiv_version: 2602.00261v2 · doi: 10.48550/arxiv.2602.00261 · pith_short_12: L4F3QZQFOBCV · pith_short_16: L4F3QZQFOBCVKU7R · pith_short_8: L4F3QZQF

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/L4F3QZQFOBCVKU7RVRTL6GPG4Y \
  | 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: 5f0bb8660570455553f1ac66bf19e6e60a1209703bd69a6d32fe7152216bad7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50c4198456de9b02c3f9df15b5e8ff5dd98761b8194a3817a9de9c20c443dca0",
    "cross_cats_sorted": [
      "q-bio.MN"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2026-01-30T19:23:36Z",
    "title_canon_sha256": "bd3867a116c00933e032af823780c168f32aa21e46c9ba5f850f9b344ba31377"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.00261",
    "kind": "arxiv",
    "version": 2
  }
}