Ricca may refer to: Surname Battista Mario Salvatore Ricca (born 1956), prelate of the Vatican Bank Bernardino Ricca (1450–?), Italian painter Federico Ricca (born 1994), Uruguayan footballer Giorgia
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 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 0x89859da0789ad1410c114f0dc6e21fcd762ad41ac3200c45e317aa35e053b851. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d3777cb-35a3-4322-86d9-da03b29b92ab.json and https://artists.proofprofile.net/proofs/artist/0d3777cb-35a3-4322-86d9-da03b29b92ab.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 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 0xe315d4aa5c3c9795141e78e4b25619060079010fd99c4707ba834ab1ee1322df. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR59R2346132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3329118a4f2f346eb6779c83f60e6fb7d7306411385491044a475dc1a3210bfd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BE8LH2300219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1242126ce554746ed878776f491e53f89fc344075b776ca007c07b47b2cd21a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BE8LH2300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4fca9118bceee54142d0350059e78e070576594acf8d80ffd5dadfdb93757c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CA5KR2343705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f969745509a420acca37aadbf5678b29f5cf135b174db0d0fdfaacb5bf62a87. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BE8LH2300057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90356c740a3841ec4ff4e436e44f4932afe67867a1932c1491ec266af145d039. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX282237291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f40f0f5b7b34e4095580fc53db4c95d69d74ded007e12df867cbaef4fe10bb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLT2H2200798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f5697b5e63c1d9447fc1c0dbd0d56399d080fe2c9d6f46f26aa913dfa18351. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BE8LH2200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf68219921cd3ee34c3d5ab21b156b2b0197ad14fecdd1fc30cc33cc3872eda. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BE8LH2200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4c329ace248c70535ccbf02ae76a0bc695929f626ab85c82b16bdc3c4deeb3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLT2H2200270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f5697b5e63c1d9447fc1c0dbd0d56399d080fe2c9d6f46f26aa913dfa18351. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BE8LH2200113.
Lounge Covers Of Popular Songs 2023.03 - Chill Out Covers - Relax & Chill Covers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f969745509a420acca37aadbf5678b29f5cf135b174db0d0fdfaacb5bf62a87. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BE8LH2300057.
Lounge Covers Of Popular Songs 2023.01 - Chill Out Covers - Relax & Chill Covers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f5697b5e63c1d9447fc1c0dbd0d56399d080fe2c9d6f46f26aa913dfa18351. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BE8LH2200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3cb7fb25910a72c818cb501422e1caf122c6f7755cfe82bb60a9f472735c07c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLT2H2300224.
Restaurant Lounge 2023 Vol. 1 Background Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f5697b5e63c1d9447fc1c0dbd0d56399d080fe2c9d6f46f26aa913dfa18351. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BE8LH2200113.