Pith Number

pith:7DBDLDM5

pith:2019:7DBDLDM5JL5KKFLISXLIO5HNRW

not attested not anchored not stored refs pending

A nearby luminous AGN sample optically selected from Hubble Space Telescope (HST)

Shuang-Liang Li

arxiv:1910.03371 v1 · 2019-10-08 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7DBDLDM5JL5KKFLISXLIO5HNRW}

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	2026-07-05T00:13:58.765510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8c2358d9d4afaa5156895d68774ed8dbffbc98aad8280e599bde507886439b0

Aliases

arxiv: 1910.03371 · arxiv_version: 1910.03371v1 · doi: 10.48550/arxiv.1910.03371 · pith_short_12: 7DBDLDM5JL5K · pith_short_16: 7DBDLDM5JL5KKFLI · pith_short_8: 7DBDLDM5

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/7DBDLDM5JL5KKFLISXLIO5HNRW \
  | 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: f8c2358d9d4afaa5156895d68774ed8dbffbc98aad8280e599bde507886439b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c894bba7d7848bb8b58193efc332cf9e5681780055c5625c1254a1af9def0963",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-10-08T13:01:44Z",
    "title_canon_sha256": "9504c2275b334a7e5b73ed1224e8c71855a9c9c77138d49ed37bfc169a6765bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.03371",
    "kind": "arxiv",
    "version": 1
  }
}