Pith Number

pith:75XV5U5P

pith:2018:75XV5U5PSPT4FVDCL4T4KOFOBP

not attested not anchored not stored refs pending

X-ray and multi-epoch optical/UV investigations of BAL to non-BAL quasar transformations

A. D. Myers, B. Luo, C. J. Grier, D. P. Schneider, J. Ruan, M. Vivek, N. Filiz Ak, N. S. Ahmed, P. B. Hall, P. Rodr\'iguez Hidalgo, Sameer, S. Anderson, W. N. Brandt

arxiv:1810.03625 v2 · 2018-10-08 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{75XV5U5PSPT4FVDCL4T4KOFOBP}

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	2026-05-18T00:03:36.344003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff6f5ed3af93e7c2d4625f27c538ae0bca97c04a754f69d9e640169324098ca7

Aliases

arxiv: 1810.03625 · arxiv_version: 1810.03625v2 · doi: 10.48550/arxiv.1810.03625 · pith_short_12: 75XV5U5PSPT4 · pith_short_16: 75XV5U5PSPT4FVDC · pith_short_8: 75XV5U5P

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/75XV5U5PSPT4FVDCL4T4KOFOBP \
  | 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: ff6f5ed3af93e7c2d4625f27c538ae0bca97c04a754f69d9e640169324098ca7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b6bb22be7d53fb325b1a90d99f8f8b9eb6d4b0bcb2e20dce0a67ea1d51ce61f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-10-08T18:00:08Z",
    "title_canon_sha256": "a8375b7d58dda3e3790b1809d4c4603f796f2e02d6a71c3cf0d67894fc926f60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.03625",
    "kind": "arxiv",
    "version": 2
  }
}