Pith Number

pith:DUS6PGPC

pith:2016:DUS6PGPCD3TE53CAGPAOYRHA3Y

not attested not anchored not stored refs pending

Hyperlogarithms and periods in Feynman amplitudes

Ivan Todorov

arxiv:1611.09323 v1 · 2016-11-28 · math-ph · hep-th · math.MP · physics.hist-ph

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

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	2026-05-18T00:56:18.780083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d25e799e21ee64eec4033c0ec44e0de0d9a2775cb9e7099c37b9481e885af92

Aliases

arxiv: 1611.09323 · arxiv_version: 1611.09323v1 · doi: 10.48550/arxiv.1611.09323 · pith_short_12: DUS6PGPCD3TE · pith_short_16: DUS6PGPCD3TE53CA · pith_short_8: DUS6PGPC

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/DUS6PGPCD3TE53CAGPAOYRHA3Y \
  | 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: 1d25e799e21ee64eec4033c0ec44e0de0d9a2775cb9e7099c37b9481e885af92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f38a44ac95714c820652996fc4de0f7a738aace519da99d78b1d1110bfac7887",
    "cross_cats_sorted": [
      "hep-th",
      "math.MP",
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2016-11-28T20:22:04Z",
    "title_canon_sha256": "20ef020a6447798e1794d14f377a058026fdd1f496357be1d48a9cd7d02ce812"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.09323",
    "kind": "arxiv",
    "version": 1
  }
}