Pith Number

pith:MTIUVVK3

pith:2017:MTIUVVK3LN7KBTTOQB3Y4VJHTR

not attested not anchored not stored refs pending

The compact, ~1 kpc host galaxy of a quasar at z=7.1

Bram Venemans, Chris Simpson, Daniel Mortlock, Eduardo Banados, Fabian Walter, Jacqueline Hodge, Paul Hewett, Richard McMahon, Roberto Decarli

arxiv:1702.03852 v1 · 2017-02-13 · astro-ph.GA · 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{MTIUVVK3LN7KBTTOQB3Y4VJHTR}

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	2026-05-18T00:48:14.601337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64d14ad55b5b7ea0ce6e80778e55279c6bfdff9760dd9d0309a37633f1f63cf3

Aliases

arxiv: 1702.03852 · arxiv_version: 1702.03852v1 · doi: 10.48550/arxiv.1702.03852 · pith_short_12: MTIUVVK3LN7K · pith_short_16: MTIUVVK3LN7KBTTO · pith_short_8: MTIUVVK3

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/MTIUVVK3LN7KBTTOQB3Y4VJHTR \
  | 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: 64d14ad55b5b7ea0ce6e80778e55279c6bfdff9760dd9d0309a37633f1f63cf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24de87839bc4cf672c1ed1b46695b834afbe7909c116f8ae9f240db0ef970de7",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-02-13T16:16:38Z",
    "title_canon_sha256": "09fe7381c0c159b0d7b9fcd0490407a666733774dadabd90bd7cd210cbb0d815"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03852",
    "kind": "arxiv",
    "version": 1
  }
}