Pith Number

pith:7X7JWXX3

pith:2020:7X7JWXX3PNM7LXLGNXAJS2CPLI

not attested not anchored not stored refs pending

Exploring the Mass Loss Histories of the Red Supergiants

Greta Helmel, Michael S. Gordon, Roberta M. Humphreys, Terry J. Jones

arxiv:2008.01108 v1 · 2020-08-03 · astro-ph.SR · 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{7X7JWXX3PNM7LXLGNXAJS2CPLI}

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	2026-07-05T01:33:42.007891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdfe9b5efb7b59f5dd666dc099684f5a222f145e59f95a0a96de8a974ba782aa

Aliases

arxiv: 2008.01108 · arxiv_version: 2008.01108v1 · doi: 10.48550/arxiv.2008.01108 · pith_short_12: 7X7JWXX3PNM7 · pith_short_16: 7X7JWXX3PNM7LXLG · pith_short_8: 7X7JWXX3

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/7X7JWXX3PNM7LXLGNXAJS2CPLI \
  | 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: fdfe9b5efb7b59f5dd666dc099684f5a222f145e59f95a0a96de8a974ba782aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4dc863273d2f8ac933e1889c2af10740beee150da8dfad92a49611683470535",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-08-03T18:01:25Z",
    "title_canon_sha256": "2a454c5f7c194511ac2456810c56a1289db8bf71f56d3f5ae74c6b5840b66648"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.01108",
    "kind": "arxiv",
    "version": 1
  }
}