Pith Number

pith:JX6GUQKT

pith:2006:JX6GUQKT3HIDCE7I4RY7OGGLVT

not attested not anchored not stored refs pending

Resolving the Stellar Outskirts of M31 and M33

Annette Ferguson, Geraint Lewis, Mike Irwin, Nial Tanvir, Rodrigo Ibata, Scott Chapman

arxiv:astro-ph/0601121 v1 · 2006-01-06 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JX6GUQKT3HIDCE7I4RY7OGGLVT}

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	2026-05-18T01:40:32.772713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4dfc6a4153d9d03113e8e471f718cbacc773d9b3a3d9cdf4525bca7f06788a49

Aliases

arxiv: astro-ph/0601121 · arxiv_version: astro-ph/0601121v1 · doi: 10.48550/arxiv.astro-ph/0601121 · pith_short_12: JX6GUQKT3HID · pith_short_16: JX6GUQKT3HIDCE7I · pith_short_8: JX6GUQKT

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/JX6GUQKT3HIDCE7I4RY7OGGLVT \
  | 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: 4dfc6a4153d9d03113e8e471f718cbacc773d9b3a3d9cdf4525bca7f06788a49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67022397014e12c8fb664a6d322612e5f38c3302cea472149181a5d8e3c28347",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-01-06T11:51:58Z",
    "title_canon_sha256": "bcffee86f35eca0726f4d22cce0807b2f978bbee6bd4282dbfdb68905c8bc23d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0601121",
    "kind": "arxiv",
    "version": 1
  }
}