Claudio Roditi (May 28, 1946 – January 17, 2020) was a Brazilian jazz trumpeter. In 1966 Claudio was named a trumpet finalist at the International Jazz Competition in Vienna, Austria. While in Vienna,
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797826c7babfcd7808fdff3e322695f9a5b5c68c1e71cf5a0fb1c654db64f877. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6bfeacc3-591c-49ac-b49f-767265b80512.json and https://artists.proofprofile.net/proofs/artist/6bfeacc3-591c-49ac-b49f-767265b80512.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73768a466682a98411c6ae28a6e702cbc3155ab0ad7640e74b8ab9128a10054d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX761535258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4698445ef2dbcfaff2f21f1bf5ab0a922bce9fe487d9d0525d473122eb023b3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX761535261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a0ff0ba7827d40dd34a901b555dc8cfa9638f2b74bd319b4c3b855be4080f9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX761535262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdecdb555d90ad9c72b2a08cfe8549b6f19b90c92b86022e38656a28473e9f04. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX761535263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bce6837b321b1d05d5dc432a977d3ad0cb9bdef40ad31d690f4da153932382. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX761535264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd68f382af9ad8a806bf678e0c8071ce9e7af95e789e5c5077bd6f75ec48eed. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX761535259.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767ebcd858f55bc988b02d87488d0046301a799c1650e0fbac64f613ceebbef3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX761535260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929cc759576e50bc7fd6fb4b2abe97a873cde78ab2f7e564d9b8e75fea6f470e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX761535265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cc1bc5850f4b6dfcb0ae83b84be5072e0242af9b9c623e922731fb295fc1ba. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX761535266.
Claudio, Rio & Friends (feat. Cama de Gato Quartet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29a9b67a03e0b097475d254d21cf739a2ad55bc80b4c7727860b26df26f99ff. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:32:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX761537058.
Sambas, Bossas and Blues: The Best of Claudio Roditi on Resonance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9722da6d328ba07561405d7a70f5b8f8f857495dd86389635a3e13d334aff83. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZ6S9724102.
A la Palladium (The Music of Dizzy Gillespie in Latin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c7f2b9a5af44a56749a5d403c8b1dc134a02ec355cc780eed1f297e69d5c55. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9AA1565062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508427df7e4414277bbc8ca479ba9253cee8df0968e0380b0a8284fcf8732f6d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ22K1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d00f3e329148208d6e01489fa7fe85f3cf4aa4c1ed0123231934ed0f4547a50. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10446202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1de789bc91e26d7186f44a2017ce5aabcd4221727c8d93a9cb8ce5ebafac243. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10446203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b69716a1d22a5642f540baeacc968559adea9fbdc6e59df417d9b8a6c23cf6. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10446201.