Pith Number

pith:3MMB4ORP

pith:2009:3MMB4ORPHHKMCAMS7JEQROGBQB

not attested not anchored not stored refs pending

Near-Infrared Photometric Study of the Old Open Cluster Trumpler 5

Eon-Chang Sung (KASI), Jaemann Kyeong (KASI), Sang Chul Kim (KASI)

arxiv:0912.4588 v1 · 2009-12-23 · 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{3MMB4ORPHHKMCAMS7JEQROGBQB}

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	2026-05-18T02:10:14.291458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db181e3a2f39d4c10192fa4908b8c180775d1b9cf4c558f062844a52223502c8

Aliases

arxiv: 0912.4588 · arxiv_version: 0912.4588v1 · doi: 10.48550/arxiv.0912.4588 · pith_short_12: 3MMB4ORPHHKM · pith_short_16: 3MMB4ORPHHKMCAMS · pith_short_8: 3MMB4ORP

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/3MMB4ORPHHKMCAMS7JEQROGBQB \
  | 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: db181e3a2f39d4c10192fa4908b8c180775d1b9cf4c558f062844a52223502c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2aa2f92a3292deb0da59211072f7252efc770f744b6b14a255729f95fd8bb505",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-23T09:21:53Z",
    "title_canon_sha256": "8fc19fd6e3e7847f439360ce6f2878aaffbb918edfbe13df9384eaad75b8087c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4588",
    "kind": "arxiv",
    "version": 1
  }
}