Pith Number

pith:OYOPMRQR

pith:2010:OYOPMRQR5A7T7KVNZI64MF7W7L

not attested not anchored not stored refs pending

Dust grain growth in the interstellar medium of 5<z<6.5 quasars

(2), 4) ((1) IfA Edinburgh, (4) Univ. of British Columbia), Christa Gall (3), Darach Watson (3), DARK Copenhagen, Eric J. Murphy (2), James S. Dunlop (1, Jens Hjorth (3), Micha{\l} J. Micha{\l}owski (1), SSC Caltech (3)

arxiv:1006.5466 v1 · 2010-06-28 · 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{OYOPMRQR5A7T7KVNZI64MF7W7L}

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	2026-05-18T02:06:34.700604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

761cf64611e83f3faaadca3dc617f6fae23f9370ae2588953c51015103dcb1c3

Aliases

arxiv: 1006.5466 · arxiv_version: 1006.5466v1 · doi: 10.48550/arxiv.1006.5466 · pith_short_12: OYOPMRQR5A7T · pith_short_16: OYOPMRQR5A7T7KVN · pith_short_8: OYOPMRQR

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/OYOPMRQR5A7T7KVNZI64MF7W7L \
  | 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: 761cf64611e83f3faaadca3dc617f6fae23f9370ae2588953c51015103dcb1c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8212e1211e81c7bf120c1b98a4c8ac915731dea2ee1ba3e53573b8d2067c5920",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-06-28T20:36:04Z",
    "title_canon_sha256": "fb05eda35925b29baa44894299fcb843903c545d5cf7ed566ccbbbfb6e20f9f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.5466",
    "kind": "arxiv",
    "version": 1
  }
}