Pith Number

pith:RP2P4LUU

pith:2019:RP2P4LUUJUQL4LP2G7AF6SWQX6

not attested not anchored not stored refs pending

Astro2020 Science White Paper: Using X-Ray Polarimetry to Probe the Physics of Black Holes and Neutron Stars

Adam R. Ingram (Oxford), Alan Marscher (Boston U.), Alice K. Harding (GSFC), Andrei Bykov (Ioffe Inst., Brian D. Ramsey (MSFC), Carmelo Sgro (Pisa), C. C. Teddy Cheung (NRL), Charles Gammie (UI Urbana Champaign), Dieter H. Hartmann (Clemson), Dimitrios Giannios (Purdue), Edward Cackett (Wayne State), Enrico Costa (INAF-IASF Roma), Fabian Kislat (UNH), Feryal Oezel (UA Tucson), George Younes (GWU), Giorgio Matt (U. Roma Tre), Greg Madejski (SLAC, Haocheng Zhang (Purdue), Henric Krawczynski (Wash. U. St. Louis, Herman Marshall (MIT), Hiromitsu Takahashi (Hiroshima U.), Ilaria Caiazzo (UBC), INFN), Jason Dexter (CU Boulder), Jean-Francois Fortin (U. Laval), Jeremy D. Schnittman (GSFC), Jeremy Heyl (UBC), Jeremy Perkins (GSFC), Jessica A. Gaskin (MSFC), John Tomsick (UC Berkeley, Jon M. Miller (UM Ann Arbor), Keith M. Jahoda (GSFC), Kiyoshi Hayashida (Osaka U.), Kuver Sinha (U. Oklahoma), Luca Baldini (U. Pisa, Luca Latronico (Torino), Mark McConnell (UNH), Mark Pearce (KTH), Markus Boettcher (NWU), Martin C. Weisskopf (MSFC), Matthew G. Baring (Rice), MCSS), Mitchell Begelman (CU Boulder), MSSL), Niccolo Bucciantini (INAF Arcetri), Paolo Coppi (Yale), Paolo Soffitta (INAF-IASF Roma), Philip Kaaret (Univ. of Iowa), Pranab Ghosh (Tata Inst.), Quin Abarr (Wash. U. St. Louis, Roberto Taverna (U. Roma Tre, Roberto Turolla (U. Padova, Roger W. Romani (Stanford), SSL), Stanford), Stephen L. O'Dell (MSFC), St. Petersburg), St. Petersburg State U.), Svetlana G. Jorstad (Boston U., Takao Kitaguchi (RIKEN), Takashi Okajima (GSFC), Thomas Maccarone (Texas Tech), Tim Kallman (GSFC), Toru Tamagawa (RIKEN), U. Padova)

arxiv:1904.09313 v1 · 2019-04-19 · astro-ph.HE · 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{RP2P4LUUJUQL4LP2G7AF6SWQX6}

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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	2026-05-17T23:48:07.430594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bf4fe2e944d20be2dfa37c05f4ad0bfac03eca2bc514ac1f462c7e97af61d5a

Aliases

arxiv: 1904.09313 · arxiv_version: 1904.09313v1 · doi: 10.48550/arxiv.1904.09313 · pith_short_12: RP2P4LUUJUQL · pith_short_16: RP2P4LUUJUQL4LP2 · pith_short_8: RP2P4LUU

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/RP2P4LUUJUQL4LP2G7AF6SWQX6 \
  | 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: 8bf4fe2e944d20be2dfa37c05f4ad0bfac03eca2bc514ac1f462c7e97af61d5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa29b9c35136df725e7abfe7434100e57b22528cd1825d53950b1d1cd6475478",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-04-19T18:54:25Z",
    "title_canon_sha256": "844d501d3f61ab5b8b9477109e604bbe1f077242dba6228b09297fd09b2f3195"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09313",
    "kind": "arxiv",
    "version": 1
  }
}