Pith Number

pith:KO3A5U4K

pith:2025:KO3A5U4KKOCRFHSWMDWRC7533Y

not attested not anchored not stored refs pending

An open-source Modular Online Psychophysics Platform (MOPP)

Adam Zaidel, Matan Noach, Noam Beer, Yuval Efrati, Yuval Samoilov-Kats

arxiv:2505.23137 v1 · 2025-05-29 · q-bio.NC · cs.HC · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KO3A5U4KKOCRFHSWMDWRC7533Y}

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	2026-07-05T11:11:56.094028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53b60ed38a5385129e5660ed117fbbde127dd1b0321b55e271550910d7f0f53c

Aliases

arxiv: 2505.23137 · arxiv_version: 2505.23137v1 · doi: 10.48550/arxiv.2505.23137 · pith_short_12: KO3A5U4KKOCR · pith_short_16: KO3A5U4KKOCRFHSW · pith_short_8: KO3A5U4K

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/KO3A5U4KKOCRFHSWMDWRC7533Y \
  | 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: 53b60ed38a5385129e5660ed117fbbde127dd1b0321b55e271550910d7f0f53c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa482cb75bbc00dd80fad6c192bb80c8ef5043ce471172a8c482d54fd2422032",
    "cross_cats_sorted": [
      "cs.HC",
      "cs.SE"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2025-05-29T06:24:36Z",
    "title_canon_sha256": "3366f099174d79a85cfc72eb69b3afda1ae8a44b6c956fbd0d93e2185ab24279"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.23137",
    "kind": "arxiv",
    "version": 1
  }
}