Pith Number

pith:FLEX5C4Y

pith:2018:FLEX5C4YNIVOXHK5T4NZLYA6JJ

not attested not anchored not stored refs pending

Spectropolarimetry of High Redshift Obscured and Red Quasars

Aaron J. Barth, Fred Hamann, Isabelle Paris, Jenny E. Greene, Julian Krolik, Michael A. Strauss, Nadia L. Zakamska, Nicholas P. Ross, Rachael M. Alexandroff

arxiv:1806.10138 v1 · 2018-06-26 · 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{FLEX5C4YNIVOXHK5T4NZLYA6JJ}

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	2026-05-18T00:11:04.225634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ac97e8b986a2aeb9d5d9f1b95e01e4a5f2e8691d9bd3ce522c27e3031d5f93e

Aliases

arxiv: 1806.10138 · arxiv_version: 1806.10138v1 · doi: 10.48550/arxiv.1806.10138 · pith_short_12: FLEX5C4YNIVO · pith_short_16: FLEX5C4YNIVOXHK5 · pith_short_8: FLEX5C4Y

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/FLEX5C4YNIVOXHK5T4NZLYA6JJ \
  | 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: 2ac97e8b986a2aeb9d5d9f1b95e01e4a5f2e8691d9bd3ce522c27e3031d5f93e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0eea31de4012aae56175987ccb7c6b5b04572f48d831ae3964692d851974f39a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-06-26T18:00:00Z",
    "title_canon_sha256": "5d63dfad37f12b05a7fb0ed23b2c2c1ab2028f6add891d77d67ce00a79db5ac9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10138",
    "kind": "arxiv",
    "version": 1
  }
}