Pith Number

pith:HJBCM25I

pith:2016:HJBCM25IUAKHCQHBRV3J7API73

not attested not anchored not stored refs pending

Interpreting the Recent Upper Limit on the Gravitational Wave Background from the Parkes Pulsar Timing Array

The NANOGrav Collaboration

arxiv:1602.06301 v1 · 2016-02-19 · astro-ph.IM · astro-ph.GA · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HJBCM25IUAKHCQHBRV3J7API73}

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	2026-05-18T01:20:16.025728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a42266ba8a0147140e18d769f81e8fec8b19caec3621add76f6d2c7815af733

Aliases

arxiv: 1602.06301 · arxiv_version: 1602.06301v1 · doi: 10.48550/arxiv.1602.06301 · pith_short_12: HJBCM25IUAKH · pith_short_16: HJBCM25IUAKHCQHB · pith_short_8: HJBCM25I

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/HJBCM25IUAKHCQHBRV3J7API73 \
  | 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: 3a42266ba8a0147140e18d769f81e8fec8b19caec3621add76f6d2c7815af733

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1db25708c5bec684be370265fbe76c112d83102b2b53f8f05f6361486abdd858",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-02-19T21:00:02Z",
    "title_canon_sha256": "683b79146a651bffec5acfd85dfd33910e60a789ea796fb211a2e47b85d64432"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.06301",
    "kind": "arxiv",
    "version": 1
  }
}