Pith Number

pith:IOWF2VD5

pith:2022:IOWF2VD5G4TMJB5XYVAA73PJTH

not attested not anchored not stored refs pending

Host Dark Matter Halos of SDSS Red and Blue Quasars: No Significant Difference in Large-scale Environment

Adam D. Myers, David J. Rosario, David M. Alexander, Grayson C. Petter (Dartmouth), James E. Geach, Kelly E. Whalen, Lizelke Klindt, Ryan C. Hickox, Victoria A. Fawcett

arxiv:2201.07803 v1 · 2022-01-19 · 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{IOWF2VD5G4TMJB5XYVAA73PJTH}

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	2026-07-05T04:03:02.499299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43ac5d547d3726c487b7c5400fede999d78740931ae7896a9a734a64f2bcfcbd

Aliases

arxiv: 2201.07803 · arxiv_version: 2201.07803v1 · doi: 10.48550/arxiv.2201.07803 · pith_short_12: IOWF2VD5G4TM · pith_short_16: IOWF2VD5G4TMJB5X · pith_short_8: IOWF2VD5

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/IOWF2VD5G4TMJB5XYVAA73PJTH \
  | 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: 43ac5d547d3726c487b7c5400fede999d78740931ae7896a9a734a64f2bcfcbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "787a0394318096832da1cbd194dc346e7435a712c30d445279dda944830b25fa",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-01-19T19:00:01Z",
    "title_canon_sha256": "c0902497f5aef68803390f8b004b063ed2352472e4c71b8d2e851921d762164b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.07803",
    "kind": "arxiv",
    "version": 1
  }
}