Pith Number

pith:6M7AOTDL

pith:2021:6M7AOTDL5EPKN7AQOI2XPZW63W

not attested not anchored not stored refs pending

Probing Early Super-massive Black Hole Growth and Quasar Evolution with Near-infrared Spectroscopy of 37 Reionization-era Quasars at 6.3 < z <= 7.64

Aaron J. Barth, Anna-Christina Eilers, Bram Venemans, Eduardo Banados, Emanuele P. Farina, Fabian Walter, Feige Wang, Frederick B. Davies, Fuyan Bian, Hengxiao Guo, Jan-Torge Schindler, Jiang-Tao Li, Jinyi Yang, Joseph F. Hennawi, Linhua Jiang, Minghao Yue, Riccardo Nanni, Richard Green, Roberto Decarli, Xiaohui Fan, Xue-Bing Wu

arxiv:2109.13942 v1 · 2021-09-28 · 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{6M7AOTDL5EPKN7AQOI2XPZW63W}

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.

Cited by

1 paper in Pith

Discovery of four Narrow-line Type-1 Quasars at z = 2.54 -- 6.06 with Subaru 'Onohi'ula PFS-SSP

Receipt and verification

First computed	2026-07-05T03:45:47.203957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f33e074c6be91ea6fc10723577e6deddb6dae22598bda6d10996a70025b40881

Aliases

arxiv: 2109.13942 · arxiv_version: 2109.13942v1 · doi: 10.48550/arxiv.2109.13942 · pith_short_12: 6M7AOTDL5EPK · pith_short_16: 6M7AOTDL5EPKN7AQ · pith_short_8: 6M7AOTDL

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/6M7AOTDL5EPKN7AQOI2XPZW63W \
  | 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: f33e074c6be91ea6fc10723577e6deddb6dae22598bda6d10996a70025b40881

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faa0dc3baf4966b8bc0f2ba6e33acabf485f9d0ce93fc60388009a7747f02454",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-28T18:00:02Z",
    "title_canon_sha256": "ad079826a791a59f8edd125001d71839b440b4d08587860909a25938b4064a91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.13942",
    "kind": "arxiv",
    "version": 1
  }
}