Pith Number

pith:7SIOOOG5

pith:2026:7SIOOOG5KFXN65EM5EEH4DAL5X

not attested not anchored not stored refs pending

A Survey on Code Equivalence: The State-of-the-Art and Open Questions

Abhinaba Mazumder, Anna-Lena Horlemann, Michael Schaller, Violetta Weger

arxiv:2607.12870 v1 · 2026-07-14 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7SIOOOG5KFXN65EM5EEH4DAL5X}

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	2026-07-15T01:22:22.599251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc90e738dd516edf748ce9087e0c0bedf558ff2c378a87b57cfa6711bb994a50

Aliases

arxiv: 2607.12870 · arxiv_version: 2607.12870v1 · doi: 10.48550/arxiv.2607.12870 · pith_short_12: 7SIOOOG5KFXN · pith_short_16: 7SIOOOG5KFXN65EM · pith_short_8: 7SIOOOG5

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/7SIOOOG5KFXN65EM5EEH4DAL5X \
  | 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: fc90e738dd516edf748ce9087e0c0bedf558ff2c378a87b57cfa6711bb994a50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4c37e60b8131c00dc4423318c204d3efe66e6882498a115ee8beefd3c36b3c4",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2026-07-14T15:21:22Z",
    "title_canon_sha256": "44e92b8b41cec100ffb1819a64b5dadad0d0466a97a306a274eab714793e4ec0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.12870",
    "kind": "arxiv",
    "version": 1
  }
}