Pith Number

pith:OJ663CTG

pith:2012:OJ663CTGA7S4SSEUQU2AEUHDK4

not attested not anchored not stored refs pending

On the impossible NGC 4372 V1 and V2: an extended AGB to the [Fe/H] = -2.2 cluster

Albert A. Zijlstra, Andry Rajoelimanana, Christian I. Johnson, Iain McDonald

arxiv:1210.8017 v1 · 2012-10-30 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OJ663CTGA7S4SSEUQU2AEUHDK4}

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	2026-05-18T01:53:35.597174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

727ded8a6607e5c9489485340250e35719ae092784c047192b9b8fe4c9a84829

Aliases

arxiv: 1210.8017 · arxiv_version: 1210.8017v1 · doi: 10.48550/arxiv.1210.8017 · pith_short_12: OJ663CTGA7S4 · pith_short_16: OJ663CTGA7S4SSEU · pith_short_8: OJ663CTG

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/OJ663CTGA7S4SSEUQU2AEUHDK4 \
  | 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: 727ded8a6607e5c9489485340250e35719ae092784c047192b9b8fe4c9a84829

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e5e9247d0f54a1bcc0c2e29b8fb7a3808320d0f2373dfc75bcdb7af2432565f",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-10-30T14:14:29Z",
    "title_canon_sha256": "389ab1faa47f5d0fd3ab7fa8531ea5c39187f410a697dda52b7b76a142754cd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.8017",
    "kind": "arxiv",
    "version": 1
  }
}