Pith Number

pith:Y5OZHVKC

pith:2011:Y5OZHVKCPNI24SP6MXEFAQCJV5

not attested not anchored not stored refs pending

X-shooter observations of QSO pairs

2), (2) INFN/National Institute of Nuclear Physics, Eros Vanzella (1) ((1) INAF-OATs, Guido Cupani (1), Italy, Italy), Matteo Viel (1), Stefano Cristiani (1, Trieste, Valentina D'Odorico (1)

arxiv:1101.1897 v1 · 2011-01-10 · 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{Y5OZHVKCPNI24SP6MXEFAQCJV5}

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	2026-05-18T04:20:58.930459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c75d93d5427b51ae49fe65c8504049af40015ecae0172a592c97d79208c3a415

Aliases

arxiv: 1101.1897 · arxiv_version: 1101.1897v1 · doi: 10.48550/arxiv.1101.1897 · pith_short_12: Y5OZHVKCPNI2 · pith_short_16: Y5OZHVKCPNI24SP6 · pith_short_8: Y5OZHVKC

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/Y5OZHVKCPNI24SP6MXEFAQCJV5 \
  | 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: c75d93d5427b51ae49fe65c8504049af40015ecae0172a592c97d79208c3a415

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccfd61755f12998c99f1ba74cd1e93a1bbf1adabdc9d6ab552ebd5b5f2d0f229",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-10T17:32:18Z",
    "title_canon_sha256": "fac2667e8050969ad03d9f3e2cee308357e534496cda9cf3c58ca900414db55f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.1897",
    "kind": "arxiv",
    "version": 1
  }
}