Pith Number

pith:Y4ORM5TG

pith:2014:Y4ORM5TGX3PKWNTMNXLWI2HXJW

not attested not anchored not stored refs pending

A $Chandra-Swift$ View of Point Sources in Hickson Compact Groups: High AGN fraction but a dearth of strong AGNs

2), (2) Johns Hopkins, (4) The University of Western Ontario, 5), (5) The Pennsylvania State University/Astronomy, 6), 6) ((1) NASA/GSFC, (6) The Pennsylvania State University/Institute for Gravitation, (7) Herzberg Institute Of Astrophysics), A. E. Hornschemeier (1), C. Gronwall (5, J. C. Charlton (5), K. Fedotov (4, M. Eracleous (5, P. Tzanavaris (1, S. C. Gallagher (4), T. D. Desjardins (4), the Cosmos, W. N. Brandt (5

arxiv:1403.3856 v1 · 2014-03-15 · astro-ph.GA · 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{Y4ORM5TGX3PKWNTMNXLWI2HXJW}

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	2026-05-18T01:44:00.787571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c71d167666bedeab366c6dd76468f74da44ae7f163ab39220d148517636ab44f

Aliases

arxiv: 1403.3856 · arxiv_version: 1403.3856v1 · doi: 10.48550/arxiv.1403.3856 · pith_short_12: Y4ORM5TGX3PK · pith_short_16: Y4ORM5TGX3PKWNTM · pith_short_8: Y4ORM5TG

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/Y4ORM5TGX3PKWNTMNXLWI2HXJW \
  | 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: c71d167666bedeab366c6dd76468f74da44ae7f163ab39220d148517636ab44f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a56abda9d95bebe80de371cf51b9bff39d0a72c1e2608241c4fb8a17baae82a9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-03-15T22:08:09Z",
    "title_canon_sha256": "b393ea2e6dbafeab3b50b467b16f782c098215a6f08c1b6ba832b37b84b31353"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.3856",
    "kind": "arxiv",
    "version": 1
  }
}