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 0x35621538efb056a0313baaea137b9e4e84a516c079687051e2f5cc5af8698b06. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b05b0c77-a60e-4c51-b446-87b8085407eb.json and https://artists.proofprofile.net/proofs/artist/b05b0c77-a60e-4c51-b446-87b8085407eb.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 0x23499e878f829d0e41c38391b1a2996c8690307a9935ed045f68500a51b2d6a1. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ITI022200444.
Figlie delle stelle - Jamie Lewis House Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807b19bec5780a71394e2ee89c65075206cc1c74fc2a3c8d3fdc3901b6493146. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITI021700368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b900ac7fcf60380933d7c7a09d0b65179ffefd3799aaecfbd8e606a39006a9. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:44:59Z), 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/ITI021900295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2970a2a3941b1ee7f0bc09429c10098c8fd2c5c80679549bbab825f04ef8c48e. 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/ITI022200445.
I Giardini Di Marzo - Black Mighty Wax Aroma Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efabf92a6994d79f514d80bb9a2ad8bbeed9e39a5e5092606370815e3b8961a. 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/ITI022200446.
Brivido Felino - Submantra's Cocktail Chant Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3c6caf1540c57e8128831003ef48bc813f285172cf455d844e57955b25f817. 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/ITI021600324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2286abc317bb3870406b3b154c5c5bca3c3ffc0c7a746cd7ca1eb92c520428. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/ITI022200447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2963bb8a524c9b4070ba47c99f948647907df90f037892f767d9e38db442fc4d. 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/ITI022100167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a5083f209838ca32a4f0885618404ee093f77c0ae2a8beb511298a375162a1. 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/ITI021800353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e5260e09248e88a7b2ec6da159deed773b4339aba3c527520914b14bdf2e69. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITI022200449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed24f9b60af7d9ebb6be204c197112c616ede2305f1a3b207da8c66610612d8. 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/ITI021900353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a13639bd4bb34101241fdec969483bd2aca2ad97d505f07ce2b2af4d53220f2. 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/ITI021700528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a1b1b9cf64006ef0827bbaa1bf7da0faf8914654676138d498bbd6ac521d3c. 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/ITI022000523.
50 Italian Standards Volume Quattro (Le più belle canzoni italiane in versione chillout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595f10f05a7cbb3ae2186f286a073cd04e41c82de33dae32be12e539907a0ea9. 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/ITI021200454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a1d098c3ad22080805b6ca5d706eeb90be8076528602d59f91b393121fe3e4. 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/ITI021200450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8db612f6744688d441cb6dcafb87128dbdb6e2ff252f5fec3cccd0cb8d950c. 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/ITI021200455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b900ac7fcf60380933d7c7a09d0b65179ffefd3799aaecfbd8e606a39006a9. 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/ITI021900295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179dd71d43f817164e36a765179f15f397bebcc87ccef98fc810cfcd0eb8b484. 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/ITI022400250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4958f84fc64b25068f3b27067087d1a705a978733e180183fd7dc70e3c2c167f. 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/ITI022200189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab8cb94e849c99f855f85cdc23dac32785d861cd88990c710cc9c227fad7dc9. 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/ITI022300507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de91ea0781509b67ddb98a3f8818449908187a4da8bc99319ad87b9b3229089. 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/ITI020800178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278898292c3115befb6a36225ecf3c538111d81b9616ba5a840e405fe0059115. 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/ITI022400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4913359497970db75bbfb05c15f32c02f463ed3f62fa50c2226d2e2645064791. 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/ITI022200431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bdad945d8e651ff1854499e0ad765916ca8318e6d7d71f465584a5d1220126. 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/ITI022300433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc97f38c3967e9f72f2ed152d52b09f53e1ff5d25e87e5de2aa9cb22db19b18. 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/ITI022400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a1d098c3ad22080805b6ca5d706eeb90be8076528602d59f91b393121fe3e4. 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/ITI021200450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0709ae54632a4ff88359355262988f57b5228c134325155eb49b1154318098. 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/ITI021600615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe2e991ae912fc6063db0eb9adebdfebb152f7b7eeb781dd784ed450e174493. 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/ITI021500116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f430f04dee060962270aa5fda0b7a5ff6c131a1808139ce7e074b8d405584c5. 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/ITI022300559.
40 Instrumental House Tunes (In a Disco Jazzy DeepTech Feeling)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4958f84fc64b25068f3b27067087d1a705a978733e180183fd7dc70e3c2c167f. 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/ITI022200189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65af3f55a101c2d38012b8c8a1c843c95f2fc0db4f994e7ab940ff3a54b086cc. 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/ITI022200426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e763feeedfc2f6be42fb8f582ce03b6e67b23197a938101c28b27c6f78c85b3. 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/ITI022200427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4958f84fc64b25068f3b27067087d1a705a978733e180183fd7dc70e3c2c167f. 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/ITI022200189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb946ee977e81a71b9af125781f146266cff7dfd689e6efee89d9394e46463629. 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/ITI022200428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517cab972acf3c138e6fa3111dc11182364c1b8a50341428cc2989cb4514d858. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ITI022200429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f611cd0ddb5d7f58b9bec7cde3f18ea1004827b99f7a9f0b7c80bcdb50570d5. 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/ITI022200430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4913359497970db75bbfb05c15f32c02f463ed3f62fa50c2226d2e2645064791. 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/ITI022200431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7f23172930e3ed40e5bf5d6fdc571ea5ed8b125b96c1de3c2756eab364e091. 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/ITI022200432.