pith. sign in
Pith Number

pith:HAXSH65E

pith:2014:HAXSH65E5ZLV7M45ZGX534IX54
not attested not anchored not stored refs pending

Braid is undecidable

Linus Hamilton

arxiv:1412.0784 v1 · 2014-12-02 · cs.CC

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{HAXSH65E5ZLV7M45ZGX534IX54}

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 2026-05-18T02:32:21.218838Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

382f23fba4ee575fb39dc9afddf117ef3a5e22593a2fde7443e9e8c4cb6d6273

Aliases

arxiv: 1412.0784 · arxiv_version: 1412.0784v1 · doi: 10.48550/arxiv.1412.0784 · pith_short_12: HAXSH65E5ZLV · pith_short_16: HAXSH65E5ZLV7M45 · pith_short_8: HAXSH65E
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/HAXSH65E5ZLV7M45ZGX534IX54 \
  | 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: 382f23fba4ee575fb39dc9afddf117ef3a5e22593a2fde7443e9e8c4cb6d6273
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "afd2008c8472da35b03d7a55fef83e6ef009e1f5944de0aae3a14460eedd5017",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-12-02T05:29:18Z",
    "title_canon_sha256": "ab10efee9f3a4cee0bf3dff01522cdcc727a642b8a57842064d3413d3372c237"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.0784",
    "kind": "arxiv",
    "version": 1
  }
}