Pith Number

pith:OMLD7G65

pith:2017:OMLD7G654XNPFSBYQT4GXELHZD

not attested not anchored not stored refs pending

Reddening and He I* $\lambda10830$ Absorption Lines in Three Narrow-line Seyfert 1 Galaxies

Hongyan Zhou, Ning Jiang, Peng Jiang, Shaohua Zhang, Shufen Wang, Tuo Ji, Wenjuan Liu, Xiang Pan, Xiheng Shi

arxiv:1706.09759 v2 · 2017-06-29 · astro-ph.GA

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	2026-05-18T00:36:31.032674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73163f9bdde5daf2c83884f86b9167c8df9f0d07a09b22f583b10c0c23300bf3

Aliases

arxiv: 1706.09759 · arxiv_version: 1706.09759v2 · doi: 10.48550/arxiv.1706.09759 · pith_short_12: OMLD7G654XNP · pith_short_16: OMLD7G654XNPFSBY · pith_short_8: OMLD7G65

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/OMLD7G654XNPFSBYQT4GXELHZD \
  | 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: 73163f9bdde5daf2c83884f86b9167c8df9f0d07a09b22f583b10c0c23300bf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbecefcb326e27237b57e73c20ff6e06fb581d249e4d49d46724dade62af503f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-06-29T13:53:59Z",
    "title_canon_sha256": "c6a87105ce4b4d0f426b9966bae86fa75eb5a5d567dbb9963abee3e05d9a56fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.09759",
    "kind": "arxiv",
    "version": 2
  }
}