Pith Number

pith:H3LMLR3K

pith:2007:H3LMLR3KGYZUY3CQJEIIQN6GGO

not attested not anchored not stored refs pending

The Broad Line Region of Quasars

D. Dultzin, J. W. Sulentic, P. Marziani

arxiv:0709.2800 v1 · 2007-09-18 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H3LMLR3KGYZUY3CQJEIIQN6GGO}

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	2026-07-04T15:04:20.797237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ed6c5c76a36334c6c5049108837c633986353ee3452d462980674b38fea2e21

Aliases

arxiv: 0709.2800 · arxiv_version: 0709.2800v1 · doi: 10.48550/arxiv.0709.2800 · pith_short_12: H3LMLR3KGYZU · pith_short_16: H3LMLR3KGYZUY3CQ · pith_short_8: H3LMLR3K

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/H3LMLR3KGYZUY3CQJEIIQN6GGO \
  | 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: 3ed6c5c76a36334c6c5049108837c633986353ee3452d462980674b38fea2e21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b47c924d5b1cc1517b6b0fc85bb11b91577fd1208ed6073bd5b6139a81f6f6c8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-18T11:49:59Z",
    "title_canon_sha256": "c7dec6e7fc1003f1ea98a460e19c7b8031183fb4c16cefe0e290d77f9402595f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.2800",
    "kind": "arxiv",
    "version": 1
  }
}