Pith Number

pith:RNB74A5F

pith:2017:RNB74A5FJ36GLCVEZ4DUJ6PWUP

not attested not anchored not stored refs pending

Proof of Northshield's conjecture concerning an analogue of Stern's sequence for $\mathbb{Z}[\sqrt{2}]$

Michael Coons

arxiv:1709.01987 v1 · 2017-09-06 · math.CO · 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{RNB74A5FJ36GLCVEZ4DUJ6PWUP}

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	2026-05-18T00:35:50.638011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b43fe03a54efc658aa4cf0744f9f6a3cf2a8d14c827d40a1d090d2fd7f85f55

Aliases

arxiv: 1709.01987 · arxiv_version: 1709.01987v1 · doi: 10.48550/arxiv.1709.01987 · pith_short_12: RNB74A5FJ36G · pith_short_16: RNB74A5FJ36GLCVE · pith_short_8: RNB74A5F

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/RNB74A5FJ36GLCVEZ4DUJ6PWUP \
  | 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: 8b43fe03a54efc658aa4cf0744f9f6a3cf2a8d14c827d40a1d090d2fd7f85f55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1dbcd2e7f218ff9bfa65ecece0dafb83acb82372c825596864e82c95ad02c68",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-09-06T20:35:55Z",
    "title_canon_sha256": "1f0cf481733203026f0a2dfa8fdb1776131dc1946494e7d71f480a94b14ce393"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01987",
    "kind": "arxiv",
    "version": 1
  }
}