Pith Number

pith:BRL4Y342

pith:2016:BRL4Y342I7G76I7IQTQ65WZ27B

not attested not anchored not stored refs pending

Project-based physics labs using low-cost open-source hardware

F. Bouquet, J. Bobroff, L. Maurines, M. Fuchs-Gallezot

arxiv:1601.06659 v2 · 2016-01-25 · physics.ed-ph · physics.pop-ph · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BRL4Y342I7G76I7IQTQ65WZ27B}

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	2026-05-18T00:49:19.245193Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c57cc6f9a47cdff23e884e1eedb3af879ef125b8a08885722741b096a637cd1

Aliases

arxiv: 1601.06659 · arxiv_version: 1601.06659v2 · doi: 10.48550/arxiv.1601.06659 · pith_short_12: BRL4Y342I7G7 · pith_short_16: BRL4Y342I7G76I7I · pith_short_8: BRL4Y342

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/BRL4Y342I7G76I7IQTQ65WZ27B \
  | 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: 0c57cc6f9a47cdff23e884e1eedb3af879ef125b8a08885722741b096a637cd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbdf097010875caa09e1415ae5e6e67ff6fbc3a8b675cf2f93b4a1e35c9ceda6",
    "cross_cats_sorted": [
      "physics.pop-ph",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2016-01-25T16:24:32Z",
    "title_canon_sha256": "456fdf945deeb620ed5e72f4971159c78ec4a2c90c480c7d6192c9a193759272"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.06659",
    "kind": "arxiv",
    "version": 2
  }
}