Pith Number

pith:QWMH6Q4S

pith:2018:QWMH6Q4STRJ4SC6QGKX6MAKTC7

not attested not anchored not stored refs pending

Origins of ultra-diffuse galaxies in the Coma cluster - I. Constraints from velocity phase-space

Aaron J. Romanowsky, Adebusola Alabi, Anna Ferr\'e-Mateu, Asher Wasserman, Duncan A. Forbes, Ignacio Mart\'in-Navarro, Jean Brodie, Maria Stone, Nobuhiro Okabe, Sabine Bellstedt, Viraj Pandya

arxiv:1801.09686 v1 · 2018-01-29 · astro-ph.GA

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

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	2026-05-18T00:11:38.652980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85987f43929c53c90bd032afe6015317d46e58ec4caa6cbd554d821cda3c5fc9

Aliases

arxiv: 1801.09686 · arxiv_version: 1801.09686v1 · doi: 10.48550/arxiv.1801.09686 · pith_short_12: QWMH6Q4STRJ4 · pith_short_16: QWMH6Q4STRJ4SC6Q · pith_short_8: QWMH6Q4S

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/QWMH6Q4STRJ4SC6QGKX6MAKTC7 \
  | 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: 85987f43929c53c90bd032afe6015317d46e58ec4caa6cbd554d821cda3c5fc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ff7cd1efc01cebce0b8f3f53c0ce2862239467defe06f2b0e86abb697a09467",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-01-29T19:00:01Z",
    "title_canon_sha256": "8635305b1fb848abdfde054ec5bca836278217fd710b0261b910d34e6b2ff706"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.09686",
    "kind": "arxiv",
    "version": 1
  }
}