Pith Number

pith:FBGFZA4P

pith:2018:FBGFZA4P7773ES7I3DU2Y2KTO6

not attested not anchored not stored refs pending

ReviewChain: Untampered Product Reviews on the Blockchain

Daniel Martens, Walid Maalej

arxiv:1803.01661 v1 · 2018-03-05 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FBGFZA4P7773ES7I3DU2Y2KTO6}

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	2026-05-18T00:21:59.959859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

284c5c838fffffb24be8d8e9ac69537789a3b65d87497f11c478696d91335354

Aliases

arxiv: 1803.01661 · arxiv_version: 1803.01661v1 · doi: 10.48550/arxiv.1803.01661 · pith_short_12: FBGFZA4P7773 · pith_short_16: FBGFZA4P7773ES7I · pith_short_8: FBGFZA4P

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/FBGFZA4P7773ES7I3DU2Y2KTO6 \
  | 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: 284c5c838fffffb24be8d8e9ac69537789a3b65d87497f11c478696d91335354

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c19cc9468e890dca4cd7a6966b0be5aba96c5625665f7bed7120a1c1c19a9a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2018-03-05T13:50:37Z",
    "title_canon_sha256": "ffb52c02f1f36c10477878dbcfd78e10d92ff98f1cae16aadba0317d15fbf6d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.01661",
    "kind": "arxiv",
    "version": 1
  }
}