Pith Number

pith:JJX4UHR3

pith:2020:JJX4UHR3BKDVBXEQ7N6RZFKVAM

not attested not anchored not stored refs pending

Beyond Rescorla-Wagner: the ups and downs of learning

Gianluca Calcagni, Justin A. Harris, Ricardo Pell\'on

arxiv:2004.05069 v2 · 2020-04-10 · q-bio.QM · 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{JJX4UHR3BKDVBXEQ7N6RZFKVAM}

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	2026-07-05T02:32:44.818893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a6fca1e3b0a8750dc90fb7d1c95550324ec0f9805a2cbd01a2c07eec2eb28b8

Aliases

arxiv: 2004.05069 · arxiv_version: 2004.05069v2 · doi: 10.48550/arxiv.2004.05069 · pith_short_12: JJX4UHR3BKDV · pith_short_16: JJX4UHR3BKDVBXEQ · pith_short_8: JJX4UHR3

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/JJX4UHR3BKDVBXEQ7N6RZFKVAM \
  | 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: 4a6fca1e3b0a8750dc90fb7d1c95550324ec0f9805a2cbd01a2c07eec2eb28b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b5eb84d775fc6516d640209013c579b40f3ae9b5a12570031d4bbd853c84eb2",
    "cross_cats_sorted": [
      "q-bio.NC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2020-04-10T15:16:18Z",
    "title_canon_sha256": "8a592aaad7be925a17166d6af08fad7363593c62439c7e50df3443bf7ba1cd8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.05069",
    "kind": "arxiv",
    "version": 2
  }
}