Pith Number

pith:P2BOWK4U

pith:2015:P2BOWK4U3ZWRGRJKDQ5NLCA4GF

not attested not anchored not stored refs pending

The NANOGrav Nine-year Data Set: Observations, Arrival Time Measurements, and Analysis of 37 Millisecond Pulsars

A. Brazier, A. N. Lommen, B. Christy, D. J. Nice, D. Madison, D. R. Lorimer, D. R. Stinebring, E. Fonseca, F. A. Jenet, G. Jones, I. H. Stairs, J. A. Ellis, J. K. Swiggum, J. Luo, J. M. Cordes, K. Crowter, K. Stovall, L. Levin, M. A. McLaughlin, M. E. Gonzalez, M. Jones, M. Koop, M. T. Lam, M. Vallisneri, N. Cornish, N. Garver-Daniels, N. Palliyaguru, P. B. Demorest, R. D. Ferdman, R. S. Lynch, R. van Haasteren, S. Burke-Spolaor, S. Chamberlin, S. Chatterjee, S. M. Ransom, S. T. McWilliams, T. Dolch, T. J. W. Lazio, T. T. Pennucci, V. M. Kaspi, W. Zhu, X. Siemens, Y. Wang, Z. Arzoumanian

arxiv:1505.07540 v2 · 2015-05-28 · 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{P2BOWK4U3ZWRGRJKDQ5NLCA4GF}

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	2026-05-18T01:23:24.098109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e82eb2b94de6d13452a1c3ad5881c3143a26d7e29e941ad242aac223aca6ef8

Aliases

arxiv: 1505.07540 · arxiv_version: 1505.07540v2 · doi: 10.48550/arxiv.1505.07540 · pith_short_12: P2BOWK4U3ZWR · pith_short_16: P2BOWK4U3ZWRGRJK · pith_short_8: P2BOWK4U

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/P2BOWK4U3ZWRGRJKDQ5NLCA4GF \
  | 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: 7e82eb2b94de6d13452a1c3ad5881c3143a26d7e29e941ad242aac223aca6ef8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "538bb62b653776a896f59d019a67cee12e83f8db1059febaabdf766ff235708f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-05-28T03:35:39Z",
    "title_canon_sha256": "143f55c68297186461e5f7829be585b002155e33568535f07f97432f69894f36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07540",
    "kind": "arxiv",
    "version": 2
  }
}