Pith Number

pith:EAFCBQC2

pith:2019:EAFCBQC2MCRMTZRGJHTCEOHS53

not attested not anchored not stored refs pending

An Unusual Mid-Infrared Flare in a Type 2 AGN: An Obscured Turning-on AGN or Tidal Disruption Event?

Jinyi Shangguan, Linhua Jiang, Matthew J. Graham, Qian Yang, Su Yao, Xin Liu, Xue-Bing Wu, Yue Shen

arxiv:1907.12721 v1 · 2019-07-30 · 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{EAFCBQC2MCRMTZRGJHTCEOHS53}

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	2026-07-05T01:08:10.001361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

200a20c05a60a2c9e62649e62238f2eee444d0848de5196484e90ac28fd84b08

Aliases

arxiv: 1907.12721 · arxiv_version: 1907.12721v1 · doi: 10.48550/arxiv.1907.12721 · pith_short_12: EAFCBQC2MCRM · pith_short_16: EAFCBQC2MCRMTZRG · pith_short_8: EAFCBQC2

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/EAFCBQC2MCRMTZRGJHTCEOHS53 \
  | 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: 200a20c05a60a2c9e62649e62238f2eee444d0848de5196484e90ac28fd84b08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c315e496f295d891398012aa47cd6aef6aa39595c323e2c682ceb9112ebb38d2",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-07-30T03:30:02Z",
    "title_canon_sha256": "d1c52d3056076d492cfc594620e6e61e895997600da9c231616b43247b5bb74d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.12721",
    "kind": "arxiv",
    "version": 1
  }
}