Pith Number

pith:DAX7PO2X

pith:2019:DAX7PO2XGLIGYROOQVPHKVSNTN

not attested not anchored not stored refs pending

The survey of Planetary Nebulae in Andromeda (M31): I. Imaging the disk and halo with MegaCam@CFHT

Alan McConnachie, Johanna Hartke, Magda Arnaboldi, Nelson Caldwell, Ortwin Gerhard, Souradeep Bhattacharya, Valentin Comte

arxiv:1903.02597 v2 · 2019-03-06 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DAX7PO2XGLIGYROOQVPHKVSNTN}

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	2026-05-17T23:47:16.870665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

182ff7bb5732d06c45ce855e75564d9b73d07c20256320928f98d23d0d919373

Aliases

arxiv: 1903.02597 · arxiv_version: 1903.02597v2 · doi: 10.48550/arxiv.1903.02597 · pith_short_12: DAX7PO2XGLIG · pith_short_16: DAX7PO2XGLIGYROO · pith_short_8: DAX7PO2X

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/DAX7PO2XGLIGYROOQVPHKVSNTN \
  | 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: 182ff7bb5732d06c45ce855e75564d9b73d07c20256320928f98d23d0d919373

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "110b907efc0232bd6c3a45111f369982a7061d8954ec976f20b1fe3778b97bb6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-03-06T19:58:42Z",
    "title_canon_sha256": "0024ac43ecb3e8df8d287a6968335a6709e51bb3ba58da63b189c5f6ce16a568"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.02597",
    "kind": "arxiv",
    "version": 2
  }
}