Pith Number

pith:DJGEM73X

pith:2010:DJGEM73XE2HNXVBQ2EYG7KUCSI

not attested not anchored not stored refs pending

Orientation effects in quasar spectra: The broad- and narrow-line regions

Matt Jarvis, Stephen Fine, Tom Mauch

arxiv:1010.5345 v1 · 2010-10-26 · astro-ph.CO

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

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	2026-05-18T02:04:58.380378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a4c467f77268edbd430d1306faa8292396b82d8692db6632ed447f907c644d1

Aliases

arxiv: 1010.5345 · arxiv_version: 1010.5345v1 · doi: 10.48550/arxiv.1010.5345 · pith_short_12: DJGEM73XE2HN · pith_short_16: DJGEM73XE2HNXVBQ · pith_short_8: DJGEM73X

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/DJGEM73XE2HNXVBQ2EYG7KUCSI \
  | 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: 1a4c467f77268edbd430d1306faa8292396b82d8692db6632ed447f907c644d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61d405c20b9be20fc4eaf4e666fb67fd7894da508a758b0494564e20490a12e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-10-26T09:51:51Z",
    "title_canon_sha256": "dcdaca41cb931adda10cfd590ecad26e9a302bb4733a1f588da55e0487049035"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.5345",
    "kind": "arxiv",
    "version": 1
  }
}