Pith Number

pith:LF75SI26

pith:2017:LF75SI26EHYH6FWXRQCVD5ZX2T

not attested not anchored not stored refs pending

Algebraic Foundations of Proof Refinement

Jonathan Sterling, Robert Harper

arxiv:1703.05215 v1 · 2017-03-15 · 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{LF75SI26EHYH6FWXRQCVD5ZX2T}

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	2026-05-18T00:48:38.036350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

597fd9235e21f07f16d78c0551f737d4ca6da724d7213fb0789936133f49e8ae

Aliases

arxiv: 1703.05215 · arxiv_version: 1703.05215v1 · doi: 10.48550/arxiv.1703.05215 · pith_short_12: LF75SI26EHYH · pith_short_16: LF75SI26EHYH6FWX · pith_short_8: LF75SI26

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/LF75SI26EHYH6FWXRQCVD5ZX2T \
  | 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: 597fd9235e21f07f16d78c0551f737d4ca6da724d7213fb0789936133f49e8ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c511e40f6b52e76fa07ec951b78421ea80771539b7ab118f6e848b7d0c5f3fb2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-03-15T15:45:10Z",
    "title_canon_sha256": "96ab86ce6e4664f087c5e30a7cfd0ffb3d36e00e061ad0b0b30ad93776cf6770"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.05215",
    "kind": "arxiv",
    "version": 1
  }
}