Pith Number

pith:7VCYT4VA

pith:2011:7VCYT4VARHEOPVBK7VMDLWKAOP

not attested not anchored not stored refs pending

Dwarfs Gobbling Dwarfs: A Stellar Tidal Stream Around NGC 4449 and Hierarchical Galaxy Formation on Small Scales

Aaron J. Romanowsky (UCO), Alessandra Aloisi (STScI), Andrea V. Maccio (MPIA), David Martinez-Delgado (MPIA), Francesca Annibali (Bologna), GEPI), Hans-Walter Rix (MPIA), Jacob A. Arnold (UCO), Jean P. Brodie (UCO), J. Gallego-Laborda (FNO), Juergen Fliri (LERMA, Julio A. Carballo-Bello (IAC), Michael R. Merrifield (Nottingham), R. Jay GaBany (BBO), Roeland P. van der Marel (STScI), Stefano Zibetti (Dark Cosmology Centre), Taylor S. Chonis (Texas)

arxiv:1112.2154 v2 · 2011-12-09 · 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{7VCYT4VARHEOPVBK7VMDLWKAOP}

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	2026-05-18T01:59:12.591518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd4589f2a089c8e7d42afd5835d94073d593854c6181b92acd64a9c2f01da686

Aliases

arxiv: 1112.2154 · arxiv_version: 1112.2154v2 · doi: 10.48550/arxiv.1112.2154 · pith_short_12: 7VCYT4VARHEO · pith_short_16: 7VCYT4VARHEOPVBK · pith_short_8: 7VCYT4VA

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/7VCYT4VARHEOPVBK7VMDLWKAOP \
  | 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: fd4589f2a089c8e7d42afd5835d94073d593854c6181b92acd64a9c2f01da686

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d030c1fecd4d4a6bc4528b13b5533c010b9bd023fbd906157432aa43433baaf8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-12-09T17:17:14Z",
    "title_canon_sha256": "205767243a6e6527c603a8c778cf9564cb107f485414f5c57a69b79207eb58c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.2154",
    "kind": "arxiv",
    "version": 2
  }
}