Pith Number

pith:DRI6ULFQ

pith:2012:DRI6ULFQCLHVXMLSBZJOYZ3LZD

not attested not anchored not stored refs pending

The absence of radio emission from the globular cluster G1

(2) NRAO, (3) U. Alberta, (4) U. Amsterdam, (5) CfA, (6) UT Austin, (7) Carnegie Observatories, (8) U. Southampton, (9) National Tsing Hua University), A. K. H. Kong (9), C. O. Heinke (3), G. R. Sivakoff (3), J. C. A. Miller-Jones (1), J. E. Greene (6), J. M. Wrobel (2), L. C. Ho (7), R. Di Stefano (5), R. E. Miller (3), R. M. Plotkin (4), T. D. Joseph (8), T. J. Maccarone (8) ((1) ICRAR - Curtin

arxiv:1206.5729 v1 · 2012-06-25 · astro-ph.HE

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

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	2026-05-18T01:56:42.214229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c51ea2cb012cf5bb1720e52ec676bc8cc116be75347cbf9e8fdb1b4dbcc9ec4

Aliases

arxiv: 1206.5729 · arxiv_version: 1206.5729v1 · doi: 10.48550/arxiv.1206.5729 · pith_short_12: DRI6ULFQCLHV · pith_short_16: DRI6ULFQCLHVXMLS · pith_short_8: DRI6ULFQ

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/DRI6ULFQCLHVXMLSBZJOYZ3LZD \
  | 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: 1c51ea2cb012cf5bb1720e52ec676bc8cc116be75347cbf9e8fdb1b4dbcc9ec4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f646cc84290807c94ec1a0c466a7513b10d6c9cbe2b75e45be2aaf53497c481",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-06-25T16:24:22Z",
    "title_canon_sha256": "21258bef919231b82b48b4bc0458270e6122d8fd69c0b905eae20df25547bb9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.5729",
    "kind": "arxiv",
    "version": 1
  }
}