Pith Number

pith:7PSW654T

pith:2019:7PSW654TRPJOFNFG2ISUO2QIQS

not attested not anchored not stored refs pending

Availability of Hyperlinked Resources in Astrophysics Papers

Alice Allen, Peter Teuben, P. Wesley Ryan

arxiv:1903.06821 v2 · 2019-03-15 · astro-ph.IM · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7PSW654TRPJOFNFG2ISUO2QIQS}

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	2026-05-17T23:50:44.420202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbe56f77938bd2e2b4a6d225476a0884aa186ea3a26428140b2ff3ba18370c4f

Aliases

arxiv: 1903.06821 · arxiv_version: 1903.06821v2 · doi: 10.48550/arxiv.1903.06821 · pith_short_12: 7PSW654TRPJO · pith_short_16: 7PSW654TRPJOFNFG · pith_short_8: 7PSW654T

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/7PSW654TRPJOFNFG2ISUO2QIQS \
  | 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: fbe56f77938bd2e2b4a6d225476a0884aa186ea3a26428140b2ff3ba18370c4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7abbc5555d956824258595bbe2797fcc0bd624c238a921ecedc7a31f2f1c869",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-03-15T22:16:22Z",
    "title_canon_sha256": "056bd9c7d173ad50f4089ca575b67bbecea57d0835e76b5140752ae02aa9e661"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.06821",
    "kind": "arxiv",
    "version": 2
  }
}