Pith Number

pith:BTP37D3U

pith:2017:BTP37D3UCQ4BQCNRJYTH7J6VPR

not attested not anchored not stored refs pending

Image Subtraction Reduction of Open Clusters M35 & NGC 2158 In The K2 Campaign-0 Super-Stamp

C. X. Huang, G. A. Bakos, J. D. Hartman, K. Penev, M. Soares-Furtado, W. Bhatti

arxiv:1703.00030 v1 · 2017-02-28 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTP37D3UCQ4BQCNRJYTH7J6VPR}

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	2026-05-18T00:49:08.952971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cdfbf8f7414381809b14e267fa7d57c6b30046b5e7c743cddc6f4ab77aa81ba

Aliases

arxiv: 1703.00030 · arxiv_version: 1703.00030v1 · doi: 10.48550/arxiv.1703.00030 · pith_short_12: BTP37D3UCQ4B · pith_short_16: BTP37D3UCQ4BQCNR · pith_short_8: BTP37D3U

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/BTP37D3UCQ4BQCNRJYTH7J6VPR \
  | 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: 0cdfbf8f7414381809b14e267fa7d57c6b30046b5e7c743cddc6f4ab77aa81ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62726f27bdbd5ac71cd023049cb4429c81afc1c0aee705432a92ed74a9c7afed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-02-28T19:14:48Z",
    "title_canon_sha256": "ebd38d6be31527f65a8a3c31367a071f5d8e1c648aa74a26a306e525299d0cff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.00030",
    "kind": "arxiv",
    "version": 1
  }
}