Pith Number

pith:DK3VKIOF

pith:2010:DK3VKIOFLLAFXAVIJ36TMTHCF4

not attested not anchored not stored refs pending

Employing a New BVIc Photometric Survey of IC 4665 to Investigate the Age of this Young Open Cluster

David J. James, Phillip A. Cargile

arxiv:1005.3329 v1 · 2010-05-18 · 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{DK3VKIOFLLAFXAVIJ36TMTHCF4}

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	2026-05-18T02:07:17.204358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ab75521c55ac05b82a84efd364ce22f00de68bf693ed1bbb6e2d3bacf59207f

Aliases

arxiv: 1005.3329 · arxiv_version: 1005.3329v1 · doi: 10.48550/arxiv.1005.3329 · pith_short_12: DK3VKIOFLLAF · pith_short_16: DK3VKIOFLLAFXAVI · pith_short_8: DK3VKIOF

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/DK3VKIOFLLAFXAVIJ36TMTHCF4 \
  | 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: 1ab75521c55ac05b82a84efd364ce22f00de68bf693ed1bbb6e2d3bacf59207f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7ecb20cf19690706a5008bba4a42f489454525fe954cb4b5222abe7b8895037",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-05-18T21:07:07Z",
    "title_canon_sha256": "1e9150b1e71727caddc9655b3b1ad69d252ffcd78c276d6a6d4f7976f709aa67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.3329",
    "kind": "arxiv",
    "version": 1
  }
}