Pith Number

pith:BQPJFD2A

pith:1999:BQPJFD2AD7YRIWVOWFFCGZMTLD

not attested not anchored not stored refs pending

Inner accretion disk disappearance during a radio flare in GRS 1915+105

CAL New York), E. Costa (IAS/CNR Rome), G. Matt (Univ. Roma 3), G. Pooley (Mullard Radio Astronomy Observatory), M. Feroci (IAS/CNR Rome), M. Tavani (IFC/CNR Milano, T. Belloni (Osservatorio Astronomico di Brera)

arxiv:astro-ph/9909465 v1 · 1999-09-28 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQPJFD2AD7YRIWVOWFFCGZMTLD}

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	2026-07-04T14:17:09.730240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c1e928f401ff1145aaeb14a23659358ca5d2e18a2e0b8792b8f9ce574a5ed75

Aliases

arxiv: astro-ph/9909465 · arxiv_version: astro-ph/9909465v1 · doi: 10.48550/arxiv.astro-ph/9909465 · pith_short_12: BQPJFD2AD7YR · pith_short_16: BQPJFD2AD7YRIWVO · pith_short_8: BQPJFD2A

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/BQPJFD2AD7YRIWVOWFFCGZMTLD \
  | 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: 0c1e928f401ff1145aaeb14a23659358ca5d2e18a2e0b8792b8f9ce574a5ed75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77e8ea61d663bc47cbceb59b05e8d35a9a241d8cafc07c8992f222dce9d03f41",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-09-28T15:40:35Z",
    "title_canon_sha256": "215fd968cc3ecd4ceb2628d1339f312db9800a46405c2948f5fe733c3e12482b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9909465",
    "kind": "arxiv",
    "version": 1
  }
}