Pith Number

pith:3XBM2SCV

pith:2015:3XBM2SCV7MKQFDF74UZXSR4KSS

not attested not anchored not stored refs pending

Properties of the open cluster Tombaugh 1 from high resolution spectroscopy and uvbyCaH$\beta$ photometry

Barbara J. Anthony-Twarog, Bruce A. Twarog, Christian Moni Bidin, Edgardo Costa, Giovanni Carraro, Jo\~ao V. Sales Silva

arxiv:1510.08120 v1 · 2015-10-27 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3XBM2SCV7MKQFDF74UZXSR4KSS}

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	2026-05-18T01:23:54.791544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddc2cd4855fb15028cbfe53379478a94885371564de11d9e7290a7058de8f94a

Aliases

arxiv: 1510.08120 · arxiv_version: 1510.08120v1 · doi: 10.48550/arxiv.1510.08120 · pith_short_12: 3XBM2SCV7MKQ · pith_short_16: 3XBM2SCV7MKQFDF7 · pith_short_8: 3XBM2SCV

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/3XBM2SCV7MKQFDF74UZXSR4KSS \
  | 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: ddc2cd4855fb15028cbfe53379478a94885371564de11d9e7290a7058de8f94a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "667dd9401e0b9077d6b34e0000069afed2577331a50743bbfd333e83521293e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-10-27T22:32:54Z",
    "title_canon_sha256": "22db0b023fc1b8c19fb88e661d1ba138b3e68cfe42f7661d6f8e617b95932f20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08120",
    "kind": "arxiv",
    "version": 1
  }
}