Pith Number

pith:M7R4AEEM

pith:2024:M7R4AEEME2JJCFIZ2WSKRO2GOT

not attested not anchored not stored refs pending

Supermassive Black Hole Spin Constraints from Polarimetry in an Equatorial Disk Model

Daniel C. M. Palumbo

arxiv:2412.06719 v1 · 2024-12-09 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M7R4AEEME2JJCFIZ2WSKRO2GOT}

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	2026-07-05T09:46:37.036230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67e3c0108c2692911519d5a4a8bb4674e5b91408a2a630451989f1d62b6621b6

Aliases

arxiv: 2412.06719 · arxiv_version: 2412.06719v1 · doi: 10.48550/arxiv.2412.06719 · pith_short_12: M7R4AEEME2JJ · pith_short_16: M7R4AEEME2JJCFIZ · pith_short_8: M7R4AEEM

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/M7R4AEEME2JJCFIZ2WSKRO2GOT \
  | 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: 67e3c0108c2692911519d5a4a8bb4674e5b91408a2a630451989f1d62b6621b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07fc145a6cde1db5969ce16617cbdf1d4db98a871d38c59a6486a33cde12e0f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2024-12-09T18:06:29Z",
    "title_canon_sha256": "0d3210f7fff185ec06611ef2fb2ba3af4d715fb546e06cf1943941015249f932"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.06719",
    "kind": "arxiv",
    "version": 1
  }
}