Pith Number

pith:6GHTOHB6

pith:2010:6GHTOHB6I3WSQGA23QLUOMBMQL

not attested not anchored not stored refs pending

Further Observations of the Intermediate Mass Black Hole Candidate ESO 243-49 HLX-1

D. Barret, I. Heywood, M. Servillat, N. A. Webb, O. Godet, S. A. Farrell, S. R. Oates

arxiv:1002.3404 v1 · 2010-02-17 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6GHTOHB6I3WSQGA23QLUOMBMQL}

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	2026-05-18T02:08:59.919160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f18f371c3e46ed28181adc1747302c82eb268445182d0075d4b676ffa1c8847e

Aliases

arxiv: 1002.3404 · arxiv_version: 1002.3404v1 · doi: 10.48550/arxiv.1002.3404 · pith_short_12: 6GHTOHB6I3WS · pith_short_16: 6GHTOHB6I3WSQGA2 · pith_short_8: 6GHTOHB6

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/6GHTOHB6I3WSQGA23QLUOMBMQL \
  | 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: f18f371c3e46ed28181adc1747302c82eb268445182d0075d4b676ffa1c8847e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e89bf38bd32dd82b916e8e1335a978301ab30650b10d42db870fdd7442944e8d",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-02-17T23:57:42Z",
    "title_canon_sha256": "bede4dcdbbc5c0f4558617be6cf34bb1a7d773c7258224de5cbed5bbff17a744"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3404",
    "kind": "arxiv",
    "version": 1
  }
}