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 0xca3bfbea85a2185f718399633cc94dbc43eefe343201e4b3fe18a44a0dc63dc3. 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/59dfe52a-2002-43b5-adde-16242db14c50.json and https://artists.proofprofile.net/proofs/artist/59dfe52a-2002-43b5-adde-16242db14c50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mummies Alive: quattro mummie in metropolitana
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 0x502a4abee497fae9835c07c6dad9b065ac174841273cb4e388894b977bea5c83. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/ITF039800078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5b83f6961ddb419eadf1e4a4c4a3abac4c9d9a3bb270987cd5995a5ad8efe0. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ITF039800563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7803fb3387038b910a8dfd3212481aa056c8054b6ffa77d1af91b7269be0521f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ITF039800550.
Cristina d'Avena e i tuoi amici in tv 2004
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d244d9303c3c7e3308041caeab298b868d430662607fc2a9a5a659a671d8c4c. 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/ITF030400046.
Street Sharks: quattro pinne all'orizzonte
Cristina D'Avena e i tuoi Amici in Tv Reloaded
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452924859fc10d9d414701f65a053d679047fae110ed8d6bf1406ffc5fcf9f71. 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/ITF039900607.
Beetleborgs: quando si scatena il vento dell'avventura
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe491e3c58f675a7d2328eec22369ac9bf7ede3978f170eb60729319f13382bf4. 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/ITF039965592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6a63dc5712fa4b7aa871f14f2a8044f432823d7765e04c5d0c57a233867663. 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/ITF039800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed0111a4c67683838f2934512ceab3163f2054033a45955812eaf8c2fd6ce69. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITF030500148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7803fb3387038b910a8dfd3212481aa056c8054b6ffa77d1af91b7269be0521f. 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/ITF039800550.