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 0xbe2d77e2bcc5ca320a1dee3e6ca9c7c3f5da6b7a6c6cc3cabc286644d4f53a8f. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e99e5f30-8e85-41fb-8b3d-9767ac430793.json and https://artists.proofprofile.net/proofs/artist/e99e5f30-8e85-41fb-8b3d-9767ac430793.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 0x4f1e55ff2341b54abc825fa3e49325f89b850f04adb28b181d81be7895fb2d3b. 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/GBLV62216034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f3a0fd4617ceb1d5f5325ed60c273cbcd7f59bbdeb2c34b7ba49f01bff91c5. 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/US83Z2306348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5fa308a7e981c2cb12bff477ade2cc394baf8a0227a74ac9545d8e6e84df85. 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/GBKQU2296235.
A Dialog That Needs Your Attention (Max Caesar Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6883442ccf94d289cc0c75cda9994f958d16a3622c2bfae8a7d2b4f1ab9df68. 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/UKR6V2271426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e05da9168670052a33c3140cd79899529b4b303d0570d9817a0a1297cc5b35. 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/US83Z2123423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eebbfb8a1794b194bdef99b32157424c8bce11a4be2b742be7544817f35b84a. 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/GBLV62216031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12ed077162b6b36f1865cb32a60c6e6bd02d08758bb3bee61a9777cbc84cae9. 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/GBLV62216032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1e55ff2341b54abc825fa3e49325f89b850f04adb28b181d81be7895fb2d3b. 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/GBLV62216034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5c4f07cbc181034832c15f6eea09cbab52dede2402711f99f1b1156694f054. 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/GBLV62216038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949c2590202164b13971967662abffd19a81cb66a8e5eb9bf58ed5f89bf6e817. 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/NLF711900036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7fcb63d85b4fb4023bba97a585b5f322346fcd1e01c31f8ccc3f202f3d45ff. 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/NLF712400411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78039d474770abb18b3a8c0e4a497681692c2e5cbb1dabef201aed39ebb4b5d. 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/NLF712400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a0f94cfc404a6058e258cb2e84343cace80773c68c92810f25b17c367b8629. 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/NLF712404519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bba4af74e524d7d80255fa3f041da999c5dbcdb8f118bf7a40cdc955511c71. 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/ZAP541700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151a148e84d37a2b865847ec032317ff0561a9490b16ad30269ee0aa6293c33a. 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/GBPS62300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7337a4882f2a3d48a0caf2bc83fa4323f37c137ff15929cefaedfce2514e356b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZGWX2209925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa98b27c8717c547378a5c2e823a4d610096a61d76651c7aea2ece83466edf1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZGWX2209928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358cf7432f2a4dab63d4db1329e66681234bd409778140afae82dfa0eb3957e2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZGWX2209934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1e55ff2341b54abc825fa3e49325f89b850f04adb28b181d81be7895fb2d3b. 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/GBLV62216034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886f25e34f0cb1bb205d5e8395413b3d2da4029cc066394d36a471317321ee4e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKQU2260506.