Pith Number

pith:FWTVA64P

pith:2011:FWTVA64PYIQOB4ZWXYUYBY534W

not attested not anchored not stored refs pending

The spectral variability of FSRQs

Minfeng Gu (SHAO), Y. L. Ai (NAOC/Yunnan Observatory)

arxiv:1101.2258 v1 · 2011-01-12 · 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{FWTVA64PYIQOB4ZWXYUYBY534W}

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	2026-05-18T02:03:42.754521Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2da7507b8fc220e0f336be2980e3bbe582ba2978f87781b4dff5e9501174f7d5

Aliases

arxiv: 1101.2258 · arxiv_version: 1101.2258v1 · doi: 10.48550/arxiv.1101.2258 · pith_short_12: FWTVA64PYIQO · pith_short_16: FWTVA64PYIQOB4ZW · pith_short_8: FWTVA64P

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/FWTVA64PYIQOB4ZWXYUYBY534W \
  | 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: 2da7507b8fc220e0f336be2980e3bbe582ba2978f87781b4dff5e9501174f7d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0ecea23049f4a396f5dfaa774365c8fa881f47801d51bf22711e8923d5966a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-12T02:33:36Z",
    "title_canon_sha256": "d7a47ebdd01034de63bda53159eb3aaa7074defa8b597424c68de6121b232f8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2258",
    "kind": "arxiv",
    "version": 1
  }
}