Pith Number

pith:BBTT4XNR

pith:2019:BBTT4XNR2LUO46IU3L4KAQGZLZ

not attested not anchored not stored refs pending

Gauging functional brain activity: from distinguishability to accessibility

David Papo

arxiv:1902.08511 v1 · 2019-02-22 · 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{BBTT4XNR2LUO46IU3L4KAQGZLZ}

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	2026-05-17T23:52:56.987171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08673e5db1d2e8ee7914daf8a040d95e5808e0069d1a57a079b07f838f33f69b

Aliases

arxiv: 1902.08511 · arxiv_version: 1902.08511v1 · doi: 10.48550/arxiv.1902.08511 · pith_short_12: BBTT4XNR2LUO · pith_short_16: BBTT4XNR2LUO46IU · pith_short_8: BBTT4XNR

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/BBTT4XNR2LUO46IU3L4KAQGZLZ \
  | 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: 08673e5db1d2e8ee7914daf8a040d95e5808e0069d1a57a079b07f838f33f69b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d312a6a53e99bb20f641b89c42a90b9cf90a52cbd0986e018a978ac076eede6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2019-02-22T14:39:40Z",
    "title_canon_sha256": "614c144148dd727296f3a4d3b2d5ef1b981a1e7196356c574270ec5db6bcabab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08511",
    "kind": "arxiv",
    "version": 1
  }
}