Pith Number

pith:6DOQ3CHO

pith:2015:6DOQ3CHOIHS36BNEKJG34HXK5Q

not attested not anchored not stored refs pending

The Event Horizon of M87

2), (2) University of Waterloo, (3) Harvard-Smithsonian Center for Astrophysics, (4) University of Texas at Austin, 5, (5) Max-Planck-Institut fur Extraterrestrische Physik, 6), (6) Universitats-Sternwarte, (7) Department of Physics, (8) Steward Observatory, 9) ((1) Perimeter Institute for Theoretical Physics, (9) MIT Haystack Observatory), Avery E. Broderick (1, Eric S. Perlman (7), Florida Institute of Technology, John Kormendy (4, Marcia J. Rieke (8), Ramesh Narayan (3), Sheperd S. Doeleman (3, Space Sciences

arxiv:1503.03873 v2 · 2015-03-12 · 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{6DOQ3CHOIHS36BNEKJG34HXK5Q}

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.

Cited by

1 paper in Pith

Towards a Non-singular Paradigm of Black Hole Physics

Receipt and verification

First computed	2026-05-18T01:55:01.298955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0dd0d88ee41e5bf05a4524dbe1eeaec393d054082a2d3d31254ea30b4d125a5

Aliases

arxiv: 1503.03873 · arxiv_version: 1503.03873v2 · doi: 10.48550/arxiv.1503.03873 · pith_short_12: 6DOQ3CHOIHS3 · pith_short_16: 6DOQ3CHOIHS36BNE · pith_short_8: 6DOQ3CHO

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/6DOQ3CHOIHS36BNEKJG34HXK5Q \
  | 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: f0dd0d88ee41e5bf05a4524dbe1eeaec393d054082a2d3d31254ea30b4d125a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de1250a80b2685567867c6530a86f009d2e720a202dda63550332ec66d1ae0d7",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-03-12T20:00:21Z",
    "title_canon_sha256": "601d0cbd31fe01e8aec7a9ccbc376f2cf27f3ca63dc64214f87142b636743094"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03873",
    "kind": "arxiv",
    "version": 2
  }
}