Pith Number

pith:554BKTG4

pith:2012:554BKTG4SY2AYBOYSGBKNKELSU

not attested not anchored not stored refs pending

Optimal Interpolation and Prediction in Pulsar Timing

G. Hobbs, J.H. Zheng, M. J. Keith, R. M. Shannon, R. N. Manchester, W. Coles, X. P. Deng

arxiv:1204.6111 v1 · 2012-04-27 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{554BKTG4SY2AYBOYSGBKNKELSU}

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	2026-05-18T01:57:43.438780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef78154cdc96340c05d89182a6a88b95007fde4e31e32fe0429acc081530da53

Aliases

arxiv: 1204.6111 · arxiv_version: 1204.6111v1 · doi: 10.48550/arxiv.1204.6111 · pith_short_12: 554BKTG4SY2A · pith_short_16: 554BKTG4SY2AYBOY · pith_short_8: 554BKTG4

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/554BKTG4SY2AYBOYSGBKNKELSU \
  | 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: ef78154cdc96340c05d89182a6a88b95007fde4e31e32fe0429acc081530da53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53277247416f56c8fd6dd37ac18094b9adcf44bd0a1d2f9c64363d4d5af2b1a0",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-04-27T06:05:04Z",
    "title_canon_sha256": "a82ab0e3ae76a7bdeb32722d2fae89ff5fb1b0a00e6063a97806f87ec40babc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6111",
    "kind": "arxiv",
    "version": 1
  }
}