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 0xb9e074407b4a771ec1891c659a3cb242ace8dfeabe30a39d2dfc948dd738065c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d34286e6-f7a6-4c95-8588-4a1aaadb8b25.json and https://artists.proofprofile.net/proofs/artist/d34286e6-f7a6-4c95-8588-4a1aaadb8b25.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 0xe6509db3e8a5c17b4f436e5fcc471489697ac7857ede697f5e61c1bec9213190. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZHNC2346896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6625bc0895938b0350013f9025c2f2c8e419cd7acb370473f2183a08234ca70. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:21:41Z), 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/QZNWU2333173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c49130cf18d79ac70ebda019f8eec00eec51e8c4cae5b6d4c80de3050fde6f. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZHNC2319180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1fd22e1c673e627b569641e857520ddb94477b4c7e2be04ca885b7ab02e6de. 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/QZHNC2334968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e772e4503d3b004e330ad1d8fc9a8091099064e8d7e77530d1b5e2e3815fa6. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:51:22Z), 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/QZHNC2334969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9ba142096a60f6bb43e2605471f346e85efbc0c6353df03dfd1e620d83cef5. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:07:58Z), 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/QZFZ32446644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620b801ada4c60d94d38a2e7c070782b786ee44e8e4250e15fb34df2e033ed23. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES72444977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0978219f17bbbf00538483bd1dfd31f181165e972787a6413f5089fcff9098b8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZES72444978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506f092248d2735c60ad8832bd57ff9e23e53782bc839b4dcc8158169d07c479. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZES72444979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b71309368ee0710de5f1a7b5216aef7922783ca21934e3b0059ee76cdc9de4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZES72444981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fe35d3731a7ea8bc5717c50086434fbaabc1ba31c6b2f1046105119ec24b15. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZFZ62566634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40275e292e8c78acb3da9387dca32417d5d7266048c6b66ab18f0c5cc2580df1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:14:26Z), 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/QZFZ62566640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bd061b9a2ea795dc796ea79dcc4606b201930914ea8be3787d1288087c8fb0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZFZ62566641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5737ede9b80991b2d5b66544a85b467d62f17d9caeb5dcffcbaee52908ee10. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZFZ62566642.
Devocionales Fe real en un mundo virtual
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad316bd16d6b9513cbe504539269c92f39334c513a7457b2fe55ceab1f7d6671. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZES82565652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2470a9e47c9f09eac9cf80709265ef81b164936718ccbe6552ed68b998fd707. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES82565657.