Pith Number

pith:MC4E2WPQ

pith:2015:MC4E2WPQ5QOKQGP66HUMFLB2L6

not attested not anchored not stored refs pending

Information and long term memory in calcium signals

Alberto Perez-Samartin, Asier Erramuzpe, Carlos Bringas, Iker Malaina, Ildefonso M. De la Fuente, Jesus M. Cortes, Luis Martinez, Maria Dolores Boyano, Maria Fedetz

arxiv:1506.02321 v1 · 2015-06-07 · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MC4E2WPQ5QOKQGP66HUMFLB2L6}

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	2026-05-18T01:55:51.507536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60b84d59f0ec1ca819fef1e8c2ac3a5fb5ab3051ac6c8b9d06c15e9787233aef

Aliases

arxiv: 1506.02321 · arxiv_version: 1506.02321v1 · doi: 10.48550/arxiv.1506.02321 · pith_short_12: MC4E2WPQ5QOK · pith_short_16: MC4E2WPQ5QOKQGP6 · pith_short_8: MC4E2WPQ

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/MC4E2WPQ5QOKQGP66HUMFLB2L6 \
  | 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: 60b84d59f0ec1ca819fef1e8c2ac3a5fb5ab3051ac6c8b9d06c15e9787233aef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a521f970701415546aab839b9944a938771e40cad003192fdd47bdc7c8ae6476",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2015-06-07T22:56:24Z",
    "title_canon_sha256": "6a65204a6e138d2c6a9e5e8f49dc821fe0c8858f56d1935634484e33f8e2e7d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02321",
    "kind": "arxiv",
    "version": 1
  }
}