Pith Number

pith:EC4UMDXZ

pith:2015:EC4UMDXZOLY5QDDCOKOM6EVHH5

not attested not anchored not stored refs pending

Understanding the Fe I Line Measurements Returned by the Helioseismic and Magnetic Imager

Alexandra Tritschler, Daniel P. Cohen, Laurel Farris, Serena Criscuoli

arxiv:1502.02559 v1 · 2015-02-09 · 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{EC4UMDXZOLY5QDDCOKOM6EVHH5}

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	2026-05-18T02:26:46.603510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20b9460ef972f1d80c62729ccf12a73f5832ea669d77017f5c0a3e41069b7fc9

Aliases

arxiv: 1502.02559 · arxiv_version: 1502.02559v1 · doi: 10.48550/arxiv.1502.02559 · pith_short_12: EC4UMDXZOLY5 · pith_short_16: EC4UMDXZOLY5QDDC · pith_short_8: EC4UMDXZ

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/EC4UMDXZOLY5QDDCOKOM6EVHH5 \
  | 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: 20b9460ef972f1d80c62729ccf12a73f5832ea669d77017f5c0a3e41069b7fc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da10325781e980c04b2a84005bf1675cbeadd66e87d26174e35d41419dec0430",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-02-09T16:52:10Z",
    "title_canon_sha256": "672dfb626bf1cb7c35518a0cc471e5e971e722354e3e1107b7360301cbf9d240"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02559",
    "kind": "arxiv",
    "version": 1
  }
}