Pith Number

pith:CT6V7OQM

pith:2009:CT6V7OQMGT552OGTEZN6PCPN2A

not attested not anchored not stored refs pending

Detecting circumstellar disks around gravitational microlenses

F. V. Hessman (1), M. Hundertmark (1), S. Dreizler (1) ((1) Institute for Astrophysics, University of G\"ottingen)

arxiv:0904.1117 v1 · 2009-04-07 · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CT6V7OQMGT552OGTEZN6PCPN2A}

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	2026-05-18T02:14:07.075355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14fd5fba0c34fbdd38d3265be789edd03e26fd71b7768a795b566f74f8bc40f2

Aliases

arxiv: 0904.1117 · arxiv_version: 0904.1117v1 · doi: 10.48550/arxiv.0904.1117 · pith_short_12: CT6V7OQMGT55 · pith_short_16: CT6V7OQMGT552OGT · pith_short_8: CT6V7OQM

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/CT6V7OQMGT552OGTEZN6PCPN2A \
  | 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: 14fd5fba0c34fbdd38d3265be789edd03e26fd71b7768a795b566f74f8bc40f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f107d7285c673bcdeef457f4e201ccef60a0e9d56fc7b8ff99085e98ad84817e",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-04-07T11:42:49Z",
    "title_canon_sha256": "1e78b9cbeae7a4ffd63300d18c53e920917584e41e225eb68943fc739da6ecba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1117",
    "kind": "arxiv",
    "version": 1
  }
}