Pith Number

pith:KYAYZQR2

pith:2015:KYAYZQR2675WNVCNIPSVTKBXYZ

not attested not anchored not stored refs pending

Evidence for Photoionization Driven Broad Absorption Line Variability

Chenwei Yang (USTC), Gary Ferland (UK, Huiyuan Wang (USTC), QUB), Tinggui Wang (USTC)

arxiv:1510.04945 v1 · 2015-10-16 · 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{KYAYZQR2675WNVCNIPSVTKBXYZ}

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	2026-05-18T01:24:51.551396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56018cc23af7fb66d44d43e559a837c6566e407f95db20c7719efdd1e507824c

Aliases

arxiv: 1510.04945 · arxiv_version: 1510.04945v1 · doi: 10.48550/arxiv.1510.04945 · pith_short_12: KYAYZQR2675W · pith_short_16: KYAYZQR2675WNVCN · pith_short_8: KYAYZQR2

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/KYAYZQR2675WNVCNIPSVTKBXYZ \
  | 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: 56018cc23af7fb66d44d43e559a837c6566e407f95db20c7719efdd1e507824c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6ca91708e5716f9c016c682916a6f9ebdeb60a0a88e4561dd61fb8f3d15ee5b",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-10-16T16:58:21Z",
    "title_canon_sha256": "0280e6677484ffff13665831b7986955ec627a245e01f914b64851512cc5f0e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.04945",
    "kind": "arxiv",
    "version": 1
  }
}