Pith Number

pith:N3ZATNY5

pith:2025:N3ZATNY5SESACZCIH5ELUYO3K4

not attested not anchored not stored refs pending

Computing Witnesses Using the SCAN Algorithm (Extended Preprint)

Fabian Achammer, Renate A. Schmidt, Stefan Hetzl

arxiv:2506.00163 v1 · 2025-05-30 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N3ZATNY5SESACZCIH5ELUYO3K4}

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	2026-07-05T11:13:29.973943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ef209b71d91240164483f48ba61db570e7ea90779d9288c4e989f53702a9d2c

Aliases

arxiv: 2506.00163 · arxiv_version: 2506.00163v1 · doi: 10.48550/arxiv.2506.00163 · pith_short_12: N3ZATNY5SESA · pith_short_16: N3ZATNY5SESACZCI · pith_short_8: N3ZATNY5

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/N3ZATNY5SESACZCIH5ELUYO3K4 \
  | 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: 6ef209b71d91240164483f48ba61db570e7ea90779d9288c4e989f53702a9d2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0713d4b468072437a50acf1035f3e9d746e883946881f0c2a035aae1b432b37e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2025-05-30T19:08:00Z",
    "title_canon_sha256": "6dd7f34fecbfd46386c1a38ea6b2bb22059cd987243722b3d3a0224cd34b5514"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.00163",
    "kind": "arxiv",
    "version": 1
  }
}