Pith Number

pith:SXZMJ3PD

pith:2017:SXZMJ3PDE5TR5Q4ZTCVVQWYC4P

not attested not anchored not stored refs pending

On the binary digits of $\sqrt{2}$

Joseph Vandehey

arxiv:1711.01722 v1 · 2017-11-06 · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SXZMJ3PDE5TR5Q4ZTCVVQWYC4P}

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	2026-05-18T00:31:17.045725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95f2c4ede327671ec39998ab585b02e3f4cb7b9880a5760a81ed6eb12f76688b

Aliases

arxiv: 1711.01722 · arxiv_version: 1711.01722v1 · doi: 10.48550/arxiv.1711.01722 · pith_short_12: SXZMJ3PDE5TR · pith_short_16: SXZMJ3PDE5TR5Q4Z · pith_short_8: SXZMJ3PD

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/SXZMJ3PDE5TR5Q4ZTCVVQWYC4P \
  | 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: 95f2c4ede327671ec39998ab585b02e3f4cb7b9880a5760a81ed6eb12f76688b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aefcfe96eb785492ef309d12d8a1f3bba6854048f6b14e1142fa9a004f8d2a08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2017-11-06T04:17:09Z",
    "title_canon_sha256": "e239a74810d37505d862a277d20d5c04a70cd9847bb7cf63e02c7b12fc53699d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.01722",
    "kind": "arxiv",
    "version": 1
  }
}