Pith Number

pith:TLZXFW5Q

pith:2013:TLZXFW5Q4TVSY3CBY7H2W2HWQO

not attested not anchored not stored refs pending

On the Semantics of ReFLect as a Basis for a Reflective Theorem Prover

Ian Childs, Raphael Cohn, Tom Melham

arxiv:1309.5742 v1 · 2013-09-23 · 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{TLZXFW5Q4TVSY3CBY7H2W2HWQO}

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	2026-05-18T03:12:34.321849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9af372dbb0e4eb2c6c41c7cfab68f683a3373dcd3ba308e1c30bac9acc5d3da3

Aliases

arxiv: 1309.5742 · arxiv_version: 1309.5742v1 · doi: 10.48550/arxiv.1309.5742 · pith_short_12: TLZXFW5Q4TVS · pith_short_16: TLZXFW5Q4TVSY3CB · pith_short_8: TLZXFW5Q

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/TLZXFW5Q4TVSY3CBY7H2W2HWQO \
  | 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: 9af372dbb0e4eb2c6c41c7cfab68f683a3373dcd3ba308e1c30bac9acc5d3da3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c38018972facb2d2e36a67f5c58f8b04e5d78b175a302ebdecf77cc2172fe2b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-09-23T09:42:20Z",
    "title_canon_sha256": "c9972c5b6afa72739783c0c1ae85646c6f258f97428ad8809a4fb9e2904c3924"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5742",
    "kind": "arxiv",
    "version": 1
  }
}