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 0x3018474411abd5f9be8ef670b2f6aac61f5f3faf51f68876aef03343e6148682. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8793876a-a9cc-478b-acc8-1b9b51ca8883.json and https://artists.proofprofile.net/proofs/artist/8793876a-a9cc-478b-acc8-1b9b51ca8883.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bimbo Compilation The Best (La compilation dei bambini: 90 canzoni per noi, tutte in un unica compilation)
Baby Dance, Vol. 1 (Balli di gruppo per grandi e piccini)
Esatto - Originally perfomed by francesco salvi
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 0x276e65d46ce5a3fd8dd1373a22dd25a6b3f419a3bcda882b4073398e39ca7a65. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/ITAA11001811.
Sigle e cartoni tv, vol.1 (Cover Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9309f7d9361594dcd3ed4fbe23127e8860011943a35b1dce6ab6abf760b2c0ff. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ITAA11001753.
Le 100 canzoni per bambini più belle di sempre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66531f5ad9d3684bd9d35595d76099f4bd525267e138c515705f04a274794c70. 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/ITS041200721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b98e81be1433d187e424af10bfc310b020f14422bda5746c2fac0aa27254d3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITD540900312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e829bacaa25e4b2ef2571d9d75ff47694ff32413812749c47e202a430fa6c8. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ITD540900317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af1eea74fd852ce861f962bf679c98523c51f3ff99d8c189e8a8714c7d2bbc7. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ITD540900314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ccc2a0d7def931313f3c96a6e9882fe3d0a9f03d506b65b7fa9980806319e5. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ITD540900322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e97602071329ba3cf5d72bc5e28f5677be4e802e408bfbdf315e54e7292cb7. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ITD540900319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e97602071329ba3cf5d72bc5e28f5677be4e802e408bfbdf315e54e7292cb7. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/ITD540900319.