Pith Number

pith:DJC7AIKQ

pith:2021:DJC7AIKQVMOVGWVBZVY4KQPETR

not attested not anchored not stored refs pending

The VVV Open Cluster Project. Near-infrared sequences of NGC6067, NGC6259, NGC4815, Pismis18, Trumpler23, and Trumpler20

A.-N. Chen\'e, C. Gonz\'alez-Fern\'andez, K. Pe\~na Ram\'irez, S. Ram\'irez Alegr\'ia

arxiv:2102.04303 v2 · 2021-02-08 · astro-ph.GA · 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{DJC7AIKQVMOVGWVBZVY4KQPETR}

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	2026-07-05T02:16:28.831046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a45f02150ab1d535aa1cd71c541e49c50eef9048b57222577a85d14861598b8

Aliases

arxiv: 2102.04303 · arxiv_version: 2102.04303v2 · doi: 10.48550/arxiv.2102.04303 · pith_short_12: DJC7AIKQVMOV · pith_short_16: DJC7AIKQVMOVGWVB · pith_short_8: DJC7AIKQ

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/DJC7AIKQVMOVGWVBZVY4KQPETR \
  | 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: 1a45f02150ab1d535aa1cd71c541e49c50eef9048b57222577a85d14861598b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faf0607212121195fbebef44425ea7de18a06472524b0a669151da13009a0f8e",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-02-08T16:07:29Z",
    "title_canon_sha256": "342f498c0bcb339381f197959c277c89aa716014599859fff37063fff67db414"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.04303",
    "kind": "arxiv",
    "version": 2
  }
}