Pith Number

pith:POMAREL3

pith:2010:POMAREL37MNZMTDEQVIZBGWQIO

not attested not anchored not stored refs pending

Astronomy in the Cloud: Using MapReduce for Image Coaddition

Andrew Connolly, Bill Howe, Jeff Gardner, Keith Wiley, Magdalena Balazinska, Simon Krughof, Yingyi Bu, YongChul Kwon

arxiv:1010.1015 v1 · 2010-10-05 · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{POMAREL37MNZMTDEQVIZBGWQIO}

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	2026-05-18T02:05:10.863187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b9808917bfb1b964c648551909ad043aae179c5e3f572228d8a41d68a3f41af

Aliases

arxiv: 1010.1015 · arxiv_version: 1010.1015v1 · doi: 10.48550/arxiv.1010.1015 · pith_short_12: POMAREL37MNZ · pith_short_16: POMAREL37MNZMTDE · pith_short_8: POMAREL3

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/POMAREL37MNZMTDEQVIZBGWQIO \
  | 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: 7b9808917bfb1b964c648551909ad043aae179c5e3f572228d8a41d68a3f41af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e13fb7f12baeca8bca8fb7a91219c84c7103716cdc08c67654856d57aa413ff2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2010-10-05T20:35:53Z",
    "title_canon_sha256": "1207f040cd8a91a7abfe60a04b37a97b80d4bb2c56ba029e33a87a18b11e9992"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.1015",
    "kind": "arxiv",
    "version": 1
  }
}