Pith Number

pith:WG3ZCCE6

pith:2017:WG3ZCCE652NC5M2CCYPN3ZMY7D

not attested not anchored not stored refs pending

Circum-galactic medium in the halo of quasars

Aldo Treves, Emanuele P. Farina, Jari K. Kotilainen, Michela Uslenghi, Renato Falomo, Riccardo Ottolina, Riccardo Scarpa

arxiv:1712.02619 v1 · 2017-12-07 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WG3ZCCE652NC5M2CCYPN3ZMY7D}

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	2026-05-18T00:28:33.423167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1b791089eee9a2eb342161edde598f8cf000fb8de5ac7f91dff0c2fab47696b

Aliases

arxiv: 1712.02619 · arxiv_version: 1712.02619v1 · doi: 10.48550/arxiv.1712.02619 · pith_short_12: WG3ZCCE652NC · pith_short_16: WG3ZCCE652NC5M2C · pith_short_8: WG3ZCCE6

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/WG3ZCCE652NC5M2CCYPN3ZMY7D \
  | 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: b1b791089eee9a2eb342161edde598f8cf000fb8de5ac7f91dff0c2fab47696b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81fd78d8fb6d21a368b9bb722ae9ad126e674da953b3c24b0de6bbb10a3ad3e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-12-07T13:53:15Z",
    "title_canon_sha256": "94e7b67286db30a74f8e70eac0256141cdde107ea8fb59c2aeda524896ce1c96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.02619",
    "kind": "arxiv",
    "version": 1
  }
}