Pith Number

pith:5SRI6EE7

pith:2009:5SRI6EE7IOHCL3ET7ZWOK5PFFY

not attested not anchored not stored refs pending

Multicolour Photometric Study of M31 Globular Clusters

2), Chinese Academy of Sciences (2) Graduate University of Chinese Academy of Sciences), J. Ma (1), X. Zhou (1) ((1)National Astronomical Observatories, Z. Fan (1

arxiv:0906.1519 v1 · 2009-06-08 · 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{5SRI6EE7IOHCL3ET7ZWOK5PFFY}

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	2026-05-18T02:13:21.568507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eca28f109f438e25ec93fe6ce575e52e3661c4adb7db1579a84134a0852037e7

Aliases

arxiv: 0906.1519 · arxiv_version: 0906.1519v1 · doi: 10.48550/arxiv.0906.1519 · pith_short_12: 5SRI6EE7IOHC · pith_short_16: 5SRI6EE7IOHCL3ET · pith_short_8: 5SRI6EE7

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/5SRI6EE7IOHCL3ET7ZWOK5PFFY \
  | 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: eca28f109f438e25ec93fe6ce575e52e3661c4adb7db1579a84134a0852037e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68c5e79bda272cb8b7e9279aef179ef9be68c229b7b4cb4b9f6d96300fc87da2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-08T15:21:50Z",
    "title_canon_sha256": "1ea24b612a871e3a241a27fa02f6d7c14ddf86c5f920d1588e46ef1741bac15e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.1519",
    "kind": "arxiv",
    "version": 1
  }
}