Pith Number

pith:YYR4KHP2

pith:2021:YYR4KHP2OREND4FXQRGORITVBD

not attested not anchored not stored refs pending

High-redshift Narrow-line Seyfert 1 Galaxies: A Candidate Sample

C. S. Stalin, Jaejin Shin, Jari Kotilainen, Suvendu Rakshit

arxiv:2106.01772 v1 · 2021-06-03 · 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{YYR4KHP2OREND4FXQRGORITVBD}

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	2026-07-05T02:46:04.347077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c623c51dfa7448d1f0b7844ce8a27508d727ec243e5b9b358e79c4a10d4c2f99

Aliases

arxiv: 2106.01772 · arxiv_version: 2106.01772v1 · doi: 10.48550/arxiv.2106.01772 · pith_short_12: YYR4KHP2OREN · pith_short_16: YYR4KHP2OREND4FX · pith_short_8: YYR4KHP2

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/YYR4KHP2OREND4FXQRGORITVBD \
  | 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: c623c51dfa7448d1f0b7844ce8a27508d727ec243e5b9b358e79c4a10d4c2f99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8500efcf1f8c47c1ed727b1bc31ded1efe5175261cf8f829830f78d8edea5184",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-06-03T11:53:11Z",
    "title_canon_sha256": "febda3f6d38efc41271fcdc6b2159c84b23e70efa72462f4e54b087ebe713647"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.01772",
    "kind": "arxiv",
    "version": 1
  }
}