Pith Number

pith:MAWBJ775

pith:2016:MAWBJ775K2B7TWDQARSISEYG6J

not attested not anchored not stored refs pending

The Optical Variability of SDSS Quasars from Multi-epoch Spectroscopy. III. A Sudden UV Cutoff in Quasar SDSS J2317+0005

Bei You, Hengxiao Guo, Jingzhe Ma, J. Xavier Prochaska, Linlin Li, Mai Liao, Matthew A. Malkan, Minfeng Gu, Tayyaba Zafar

arxiv:1605.07301 v1 · 2016-05-24 · astro-ph.GA · astro-ph.CO · astro-ph.HE

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

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	2026-05-18T01:08:41.031121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

602c14fffd5683f9d8700464891306f278233f545ed3a14dffb36dd569c89108

Aliases

arxiv: 1605.07301 · arxiv_version: 1605.07301v1 · doi: 10.48550/arxiv.1605.07301 · pith_short_12: MAWBJ775K2B7 · pith_short_16: MAWBJ775K2B7TWDQ · pith_short_8: MAWBJ775

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/MAWBJ775K2B7TWDQARSISEYG6J \
  | 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: 602c14fffd5683f9d8700464891306f278233f545ed3a14dffb36dd569c89108

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b22b1bef1dd3c0c6070c020b905c46e312dec32383bfe2ca1b9d431e55328d0b",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-05-24T06:00:04Z",
    "title_canon_sha256": "9754c9eb3d2692a69569a5eb52a3be8323e847406ee4c60a9ec2b5d3b22c71de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.07301",
    "kind": "arxiv",
    "version": 1
  }
}