Pith Number

pith:IFIXJ722

pith:2023:IFIXJ7224SQPLESZBIZPAZUSMX

not attested not anchored not stored refs pending

Constraints on thermalizing surfaces from infrared observations of supermassive black holes

Francesco Di Filippo, Matt Visser, Ra\'ul Carballo-Rubio, Stefano Liberati

arxiv:2306.17480 v1 · 2023-06-30 · 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{IFIXJ7224SQPLESZBIZPAZUSMX}

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	2026-07-05T06:26:27.645564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

415174ff5ae4a0f592590a32f0669265e89a1e68d7a2e0c47b056f5ceb89febb

Aliases

arxiv: 2306.17480 · arxiv_version: 2306.17480v1 · doi: 10.48550/arxiv.2306.17480 · pith_short_12: IFIXJ7224SQP · pith_short_16: IFIXJ7224SQPLESZ · pith_short_8: IFIXJ722

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/IFIXJ7224SQPLESZBIZPAZUSMX \
  | 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: 415174ff5ae4a0f592590a32f0669265e89a1e68d7a2e0c47b056f5ceb89febb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e677bf02a63b3388ba778dee41a0263a94bff78c5fc961f933d2e129adc2e6de",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-06-30T08:52:41Z",
    "title_canon_sha256": "9a7bc40778633bf42e6b3ef1cdae8f84c477152d2fae308a13645b09d2e7ef2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2306.17480",
    "kind": "arxiv",
    "version": 1
  }
}