Pith Number

pith:6X6E655A

pith:2015:6X6E655AFZHPEUUQIUIYH6WCCJ

not attested not anchored not stored refs pending

Temperature manipulation in songbird brain implicates the premotor nucleus HVC in birdsong syntax

Alexay Kozhevnikov, Dezhe Z. Jin, Jason D. Wittenbach, Yisi Zhang

arxiv:1501.06108 v1 · 2015-01-25 · q-bio.NC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6X6E655AFZHPEUUQIUIYH6WCCJ}

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	2026-05-18T02:28:42.324225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5fc4f77a02e4ef25290451183fac2124b8697c83be99936ac482c51f1b7ffa6

Aliases

arxiv: 1501.06108 · arxiv_version: 1501.06108v1 · doi: 10.48550/arxiv.1501.06108 · pith_short_12: 6X6E655AFZHP · pith_short_16: 6X6E655AFZHPEUUQ · pith_short_8: 6X6E655A

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/6X6E655AFZHPEUUQIUIYH6WCCJ \
  | 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: f5fc4f77a02e4ef25290451183fac2124b8697c83be99936ac482c51f1b7ffa6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77f02e62843ad64b843debdbbdaeda100afac42825e506b17102b05a56693ab3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2015-01-25T03:10:15Z",
    "title_canon_sha256": "6a115ee37d44917f7f1fe65da7b8d065cf156d714a8dc137848ddd68ebe7ff72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.06108",
    "kind": "arxiv",
    "version": 1
  }
}