Pith Number

pith:2O5DJDCK

pith:2013:2O5DJDCKUWSSRUOS4G7I7A6HS7

not attested not anchored not stored refs pending

Black hole mass estimates and emission-line properties of a sample of redshift z>6.5 quasars

B. M. Peterson, B. P. Venemans, C. Simpson, D. J. Mortlock, F. Walter, G. De Rosa, M. Dietrich, M. Gennaro, P. C. Hewett, R. A. Simcoe, R. Decarli, R. G. McMahon, S. Frank

arxiv:1311.3260 v3 · 2013-11-13 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2O5DJDCKUWSSRUOS4G7I7A6HS7}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:46:31.395178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3ba348c4aa5a528d1d2e1be8f83c797eebeaec63aadeaa3846c5adbd24915fd

Aliases

arxiv: 1311.3260 · arxiv_version: 1311.3260v3 · doi: 10.48550/arxiv.1311.3260 · pith_short_12: 2O5DJDCKUWSS · pith_short_16: 2O5DJDCKUWSSRUOS · pith_short_8: 2O5DJDCK

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/2O5DJDCKUWSSRUOS4G7I7A6HS7 \
  | 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: d3ba348c4aa5a528d1d2e1be8f83c797eebeaec63aadeaa3846c5adbd24915fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9629bee94b6d4eb4b3d8ee488999797a5cb06b2cd7f2ec5b2934d5eae75b2c55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-11-13T19:24:04Z",
    "title_canon_sha256": "3a49b8258dac2ff3e018c639cc70d434e1329aacac83276266eed2a2bb1e83e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.3260",
    "kind": "arxiv",
    "version": 3
  }
}