Pith Number

pith:JB73TPAM

pith:2011:JB73TPAMB47MWU6BZCEKOKMHSO

not attested not anchored not stored refs pending

2MASS photometry and age estimate of globular clusters in the outer halo of M31

2) ((1) National Astronomical Observatories, (2) Key Laboratory of Optical Astronomy, Beijing, China), Chinese Academy of Sciences, Jun Ma (1, National Astronomical Observatories

arxiv:1111.2670 v1 · 2011-11-11 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JB73TPAMB47MWU6BZCEKOKMHSO}

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	2026-05-18T01:59:40.360964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

487fb9bc0c0f3ecb53c1c888a729879383ee38eb52be34b837798c561fd128e9

Aliases

arxiv: 1111.2670 · arxiv_version: 1111.2670v1 · doi: 10.48550/arxiv.1111.2670 · pith_short_12: JB73TPAMB47M · pith_short_16: JB73TPAMB47MWU6B · pith_short_8: JB73TPAM

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/JB73TPAMB47MWU6BZCEKOKMHSO \
  | 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: 487fb9bc0c0f3ecb53c1c888a729879383ee38eb52be34b837798c561fd128e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7a23a604ed7c3fe03e53d092ca1c3af187ae5623b3d13eaadd76c9f2716fa0e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-11-11T06:35:37Z",
    "title_canon_sha256": "d3870e84e88a4a5d0063e861b651efd53f125e7a239667fb3069c8400232985b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2670",
    "kind": "arxiv",
    "version": 1
  }
}