Pith Number

pith:HEIXDH3L

pith:2018:HEIXDH3LWJUOEG3YV4UAORNZKR

not attested not anchored not stored refs pending

A Mid-IR Selected Changing-Look Quasar and Physical Scenarios for Abrupt AGN Fading

Aaron M. Meisner, Andrew Drake, Arjun Dey, Barry McKernan, Daniel Stern, Hyunsung D. Jun, K. E. S. Ford, Matthew J. Graham, Mislav Balokovi\'c, Murray Brightman, Nicholas P. Ross, Peter Eisenhardt, Roberto J. Assef, S. G. Djorgovski

arxiv:1805.06920 v1 · 2018-05-17 · 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{HEIXDH3LWJUOEG3YV4UAORNZKR}

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	2026-05-18T00:06:39.778798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3911719f6bb268e21b78af280745b9546c06ea15eb972fecb6b8e66c46e8dbf9

Aliases

arxiv: 1805.06920 · arxiv_version: 1805.06920v1 · doi: 10.48550/arxiv.1805.06920 · pith_short_12: HEIXDH3LWJUO · pith_short_16: HEIXDH3LWJUOEG3Y · pith_short_8: HEIXDH3L

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/HEIXDH3LWJUOEG3YV4UAORNZKR \
  | 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: 3911719f6bb268e21b78af280745b9546c06ea15eb972fecb6b8e66c46e8dbf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "066745ada1f6431780a5aa785169248dc3ca91e66ba746cfe363179754131b7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-05-17T18:34:10Z",
    "title_canon_sha256": "9b47a1d5bd2725a7b9bb0604be3757bf97be08c03dc286390fc307f3698b1cfe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.06920",
    "kind": "arxiv",
    "version": 1
  }
}