Pith Number

pith:XFRMS7KW

pith:2026:XFRMS7KWHV4VRATU4XU6I2T4YN

not attested not anchored not stored refs pending

How the fly holds a single goal: normalization, not selection, in Drosophila FC2

Christopher Lee, Gioele Nanni

arxiv:2607.18969 v1 · 2026-07-21 · q-bio.NC · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XFRMS7KWHV4VRATU4XU6I2T4YN}

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	2026-07-22T01:23:22.305525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b962c97d563d79588274e5e9e46a7cc359c0653471d4de41a2945ca11e73c76c

Aliases

arxiv: 2607.18969 · arxiv_version: 2607.18969v1 · doi: 10.48550/arxiv.2607.18969 · pith_short_12: XFRMS7KWHV4V · pith_short_16: XFRMS7KWHV4VRATU · pith_short_8: XFRMS7KW

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/XFRMS7KWHV4VRATU4XU6I2T4YN \
  | 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: b962c97d563d79588274e5e9e46a7cc359c0653471d4de41a2945ca11e73c76c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "684144435f4cd74e7f8a13503d73dbde6729492692a98cc1f342b6c639c67815",
    "cross_cats_sorted": [
      "cs.NE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2026-07-21T11:03:28Z",
    "title_canon_sha256": "f4fd7cea2db9c9a8a52ca5dea35e5b350b28b53a51b837a5d76d3ff1930f6281"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.18969",
    "kind": "arxiv",
    "version": 1
  }
}