Pith Number

pith:FB2AXUP6

pith:2017:FB2AXUP6I3LDGSBSIP5LMLVKMH

not attested not anchored not stored refs pending

Properties of spectrally-defined red QSOs at z = 0.3-1.2

An-Li Tsai, Chorng-Yuan Hwang

arxiv:1705.06656 v1 · 2017-05-18 · 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{FB2AXUP6I3LDGSBSIP5LMLVKMH}

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	2026-05-18T00:42:18.786691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28740bd1fe46d633483243fab62eaa61cdb15ebc5b213c1c633b26d808c9493b

Aliases

arxiv: 1705.06656 · arxiv_version: 1705.06656v1 · doi: 10.48550/arxiv.1705.06656 · pith_short_12: FB2AXUP6I3LD · pith_short_16: FB2AXUP6I3LDGSBS · pith_short_8: FB2AXUP6

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/FB2AXUP6I3LDGSBSIP5LMLVKMH \
  | 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: 28740bd1fe46d633483243fab62eaa61cdb15ebc5b213c1c633b26d808c9493b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71e53470740f0275c06e0cf72cbb837c4858da141993a8348c9a440904e5487c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-05-18T15:37:11Z",
    "title_canon_sha256": "ad3133b6a04ba8ae287025827b0c6563d4606b406b93152f0fb72d5ae7c77d28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06656",
    "kind": "arxiv",
    "version": 1
  }
}