Pith Number

pith:YDJAG6SC

pith:2013:YDJAG6SCUGZ2Q5LAOD6MRIMJAW

not attested not anchored not stored refs pending

The environment of bright QSOs at z ~ 6: Star forming galaxies and X-ray emission

2), (2) CfA Harvard), Debora Sijacki (1, Martin G. Haehnelt (1) ((1) IoA/KICC Cambridge, Michele Trenti (1), Tiago Costa (1)

arxiv:1307.5854 v2 · 2013-07-22 · 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{YDJAG6SCUGZ2Q5LAOD6MRIMJAW}

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	2026-05-18T01:48:41.505756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0d2037a42a1b3a8756070fcc8a18905b7172dd3024f8660679b3545c8bafb48

Aliases

arxiv: 1307.5854 · arxiv_version: 1307.5854v2 · doi: 10.48550/arxiv.1307.5854 · pith_short_12: YDJAG6SCUGZ2 · pith_short_16: YDJAG6SCUGZ2Q5LA · pith_short_8: YDJAG6SC

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/YDJAG6SCUGZ2Q5LAOD6MRIMJAW \
  | 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: c0d2037a42a1b3a8756070fcc8a18905b7172dd3024f8660679b3545c8bafb48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79f254e30052ffeeab09dfae589878322ca74d82860a01f0be5cc3833e5fab6d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-22T20:00:07Z",
    "title_canon_sha256": "71ff65d1087e61d68d8082566849a09199143b6a526e06aaf2a465348561ecc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5854",
    "kind": "arxiv",
    "version": 2
  }
}