pith. sign in
Pith Number

pith:G4GSWA3B

pith:2016:G4GSWA3BG5MYVRQYLAXKTCTPRN
not attested not anchored not stored refs pending

Is 1+1=2 an empirical proposition?

Yafet Sanchez Sanchez

arxiv:1604.05962 v1 · 2016-01-25 · physics.hist-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{G4GSWA3BG5MYVRQYLAXKTCTPRN}

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 2026-05-18T01:16:34.077327Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

370d2b036137598ac618582ea98a6f8b79b1f361ae0660caf2f73194d8e98b09

Aliases

arxiv: 1604.05962 · arxiv_version: 1604.05962v1 · doi: 10.48550/arxiv.1604.05962 · pith_short_12: G4GSWA3BG5MY · pith_short_16: G4GSWA3BG5MYVRQY · pith_short_8: G4GSWA3B
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/G4GSWA3BG5MYVRQYLAXKTCTPRN \
  | 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: 370d2b036137598ac618582ea98a6f8b79b1f361ae0660caf2f73194d8e98b09
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "139d121f919a7760fa05534062350fbcc01ebc923cd64fad82969c96fced0827",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2016-01-25T20:54:17Z",
    "title_canon_sha256": "4bb10c65cd21b141842ca61d63efaa3193bb0c4c6167f22617cbb87c7846598f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.05962",
    "kind": "arxiv",
    "version": 1
  }
}