Pith Number

pith:JSE7BYA5

pith:2003:JSE7BYA5P64TOEQE2YFH2RNBBP

not attested not anchored not stored refs pending

CMB Observations and the Production of Chemical Elements at the End of the Dark Ages

C. Hernandez-Monteagudo, K. Basu, R. Sunyaev

arxiv:astro-ph/0311620 v2 · 2003-11-28 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JSE7BYA5P64TOEQE2YFH2RNBBP}

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	2026-05-18T04:21:41.371964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c89f0e01d7fb9371204d60a7d45a10bdbeb617c59158d4b31fba7d2fddd7e35

Aliases

arxiv: astro-ph/0311620 · arxiv_version: astro-ph/0311620v2 · doi: 10.48550/arxiv.astro-ph/0311620 · pith_short_12: JSE7BYA5P64T · pith_short_16: JSE7BYA5P64TOEQE · pith_short_8: JSE7BYA5

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/JSE7BYA5P64TOEQE2YFH2RNBBP \
  | 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: 4c89f0e01d7fb9371204d60a7d45a10bdbeb617c59158d4b31fba7d2fddd7e35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c7a9fdce5658eb6961dbfb77ae13a3b3451686b17aad8b33886dcada30cc5f4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-11-28T20:25:39Z",
    "title_canon_sha256": "45687be384dd02302dc4abc8849e5ccdb08151d11c7fef2c0f1d5736b39f6a9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0311620",
    "kind": "arxiv",
    "version": 2
  }
}