Pith Number

pith:CEDO3OMK

pith:2021:CEDO3OMK5XUL7S6GSIIILK6SEC

not attested not anchored not stored refs pending

The survey of planetary nebulae in Andromeda (M31) III. Constraints from deep planetary nebula luminosity functions on the origin of the inner halo substructures in M31

Alan McConnachie, Johanna Hartke, Kenneth C. Freeman, Magda Arnaboldi, Nelson Caldwell, Ortwin Gerhard, Souradeep Bhattacharya

arxiv:2101.11860 v1 · 2021-01-28 · 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{CEDO3OMK5XUL7S6GSIIILK6SEC}

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	2026-07-05T02:25:36.514309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1106edb98aede8bfcbc6921085abd2208e4a6f96b69451b02551324a0004addd

Aliases

arxiv: 2101.11860 · arxiv_version: 2101.11860v1 · doi: 10.48550/arxiv.2101.11860 · pith_short_12: CEDO3OMK5XUL · pith_short_16: CEDO3OMK5XUL7S6G · pith_short_8: CEDO3OMK

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/CEDO3OMK5XUL7S6GSIIILK6SEC \
  | 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: 1106edb98aede8bfcbc6921085abd2208e4a6f96b69451b02551324a0004addd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aafbbf647c905405fbea622ee120f6fdcaa81ec69b18d00f6740408f95d0f8bd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-01-28T08:07:17Z",
    "title_canon_sha256": "ee3d8cf2a124c1984ed1f0371e3a787ebb88e3f45048d2a73b660c5f56916311"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.11860",
    "kind": "arxiv",
    "version": 1
  }
}