Pith Number

pith:M4VQNM3Z

pith:2013:M4VQNM3Z4H6OPBFPSJMD4RIVSN

not attested not anchored not stored refs pending

H-alpha survey of low-mass satellites of the neighbouring galaxies M31 and M81

I. D. Karachentsev, S.S. Kaisin

arxiv:1310.2780 v1 · 2013-10-10 · 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{M4VQNM3Z4H6OPBFPSJMD4RIVSN}

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	2026-05-18T03:10:46.716293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

672b06b379e1fce784af92583e4515937469530cce8ce32f16c3a0124f0f10e5

Aliases

arxiv: 1310.2780 · arxiv_version: 1310.2780v1 · doi: 10.48550/arxiv.1310.2780 · pith_short_12: M4VQNM3Z4H6O · pith_short_16: M4VQNM3Z4H6OPBFP · pith_short_8: M4VQNM3Z

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/M4VQNM3Z4H6OPBFPSJMD4RIVSN \
  | 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: 672b06b379e1fce784af92583e4515937469530cce8ce32f16c3a0124f0f10e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27d5893d0446195def5b5d9dcd13e060b8d37f3515681d5680249cedaed38fdc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-10-10T11:41:55Z",
    "title_canon_sha256": "2656edd546c902dbc7f6d9509c688c3995fc74c459806fcc31b718fff38b34f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.2780",
    "kind": "arxiv",
    "version": 1
  }
}