Pith Number

pith:HWD4JSVG

pith:2011:HWD4JSVGB6GR3ZEU2VUACAD5ZR

not attested not anchored not stored refs pending

A mid-IR study of Hickson Compact Groups II. Multi-wavelength analysis of the complete GALEX-Spitzer Sample

2, 2), (2) IESL/FORTH Greece, 3), (3) Observatoire de Paris, (4) CEA/DSM-CNRS Paris, (5) Max Planck Institute fur Astronomie, (6) University of Oxford), E. da Cunha (5), E. Le Floc'h (4), G. Magdis (5) ((1) University of Crete, T. Bitsakis (1), T. Diaz-Santos (1, V. Charmandaris (1

arxiv:1107.3418 v1 · 2011-07-18 · astro-ph.CO

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	2026-05-18T02:01:15.573254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d87c4caa60f8d1de494d56801007dcc55ff5928ac60c1da0a764d4a3728b8d4

Aliases

arxiv: 1107.3418 · arxiv_version: 1107.3418v1 · doi: 10.48550/arxiv.1107.3418 · pith_short_12: HWD4JSVGB6GR · pith_short_16: HWD4JSVGB6GR3ZEU · pith_short_8: HWD4JSVG

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/HWD4JSVGB6GR3ZEU2VUACAD5ZR \
  | 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: 3d87c4caa60f8d1de494d56801007dcc55ff5928ac60c1da0a764d4a3728b8d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8dda0e40de51e18741dd72e7a7f78887339d3240b2412062f437b5c2b2ceed7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-18T12:44:02Z",
    "title_canon_sha256": "9f6151f8f2e5cf453d7df228ed0777d61da96b222ba49c9966567509cd825645"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3418",
    "kind": "arxiv",
    "version": 1
  }
}