Pith Number

pith:U2MQKPVK

pith:2016:U2MQKPVKLJAZCSB5KPESKYGMTL

not attested not anchored not stored refs pending

Water masers in Compton-thick AGN I. Detailed study of the new water megamaser in IRAS15480-0344

(2) INAF-Osservatorio Astronomico di Brera), A. Caccianiga (2), A. Tarchi (1), P. Castangia (1), P. Severgnini (2), R. Della Ceca (2) ((1) INAF-Osservatorio Astronomico di Cagliari

arxiv:1601.03209 v1 · 2016-01-13 · 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{U2MQKPVKLJAZCSB5KPESKYGMTL}

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	2026-05-18T01:21:25.314784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a699053eaa5a4191483d53c92560cc9aeca95a40a7452ef5ba31ab8aa1669c86

Aliases

arxiv: 1601.03209 · arxiv_version: 1601.03209v1 · doi: 10.48550/arxiv.1601.03209 · pith_short_12: U2MQKPVKLJAZ · pith_short_16: U2MQKPVKLJAZCSB5 · pith_short_8: U2MQKPVK

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/U2MQKPVKLJAZCSB5KPESKYGMTL \
  | 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: a699053eaa5a4191483d53c92560cc9aeca95a40a7452ef5ba31ab8aa1669c86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e919da4a2a5adcf7bba4c636d274cfd6eaced3c7bc4244a99fad4d24104d2765",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-01-13T11:46:49Z",
    "title_canon_sha256": "086b7dda9e2c25df11608e01c98b8ea06d83eb4f5b16d3d4ffc9c175beacce47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.03209",
    "kind": "arxiv",
    "version": 1
  }
}