Pith Number

pith:IYIKJJ5Q

pith:2015:IYIKJJ5QDXMUPSZK5QHU3OAQHK

not attested not anchored not stored refs pending

Testing Dark Matter Halo Models of Quasars With Thermal Sunyaev-Zeldovich Effect

Mohammadtaher Safarzadeh (Johns Hopkins), Renyue Cen (Princeton)

arxiv:1507.07934 v1 · 2015-07-28 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IYIKJJ5QDXMUPSZK5QHU3OAQHK}

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	2026-05-18T01:33:42.039252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4610a4a7b01dd947cb2aec0f4db8103aa15e81075418421eced291dc80ea60fb

Aliases

arxiv: 1507.07934 · arxiv_version: 1507.07934v1 · doi: 10.48550/arxiv.1507.07934 · pith_short_12: IYIKJJ5QDXMU · pith_short_16: IYIKJJ5QDXMUPSZK · pith_short_8: IYIKJJ5Q

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/IYIKJJ5QDXMUPSZK5QHU3OAQHK \
  | 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: 4610a4a7b01dd947cb2aec0f4db8103aa15e81075418421eced291dc80ea60fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af412ac5ec2c467956703b6dad894e52df3118a31b3083a9c5d3d0ecbd0ec27a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-28T20:00:48Z",
    "title_canon_sha256": "227075f6b30b38314d130cb055d2871a1d3df0aea2f523fc3f49c6712a826803"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.07934",
    "kind": "arxiv",
    "version": 1
  }
}