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 0x69797bdf3580682dd9d3aa6e096b99366282cf6d501e8fa411beba41027c870a. 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/80cc4ff9-b20b-456c-85b2-9dabec679229.json and https://artists.proofprofile.net/proofs/artist/80cc4ff9-b20b-456c-85b2-9dabec679229.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 0xd2fd999e6ee91a8a99d677ed895c3cf3cfa760a65ded89e5baac52ba35b5138c. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/DEZN82484976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6534420585dca932739baf495c99fa443b996c63376bad82287196d3db41921e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEZN82484970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97f98ca9cf707e46b0c3ae2895f3547ca14537299220949145f8634b634fc88. 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/DEZN82484937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7791e97ef4579cab7031d949be6908339590d957904350b637477b3943435b. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:50:24Z), 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/DEZN82484973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2974063b9e6c2ee1563af5d49066e4354a6a507c19b785a3104c86d1baf1c9b6. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/DEZN82484924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf702644bd23e0723b410a3c3552c7c476c30508fcc4d6bcb24fe9d71bb93bac1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEZN82484925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dbc9d856232e0ff2037ecda5eec3339605d786e729463b00fdd441cb9dcb87. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/DEZN82484922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16528ab8a8e30537bb4ffbed0c7547d01a62ce11f6f116c14b87a23adcab0a24. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEZN82484921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5122dfe91fed8c58f22bb6113e7a9dba24b9364329d3ecbb840d8a825682bf5a. 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/DEZN82484919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99906494128a6dd63bd20558d54675b35258f433b9afaa9b908be41275be3a33. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEZN82484926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be58fc80b039b94b4bfd88d6cd48dd8b3578253df6c11f3508a314e58d80225. 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/DEZN82484938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c5648192123c27e93b99172518b1798a9701eed313becfb22b26cdf24337f1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEZN82484920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e73834a4c7a94fd910e861ce95306b5bcf8b1968aeb229a9af66ac15a883364. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/DEZN82484936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4995da53c6db9ee62a56038bb677e47632a7656255952cb89c7738b68a12f8dc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEZN82484964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed23fb997f33290687da14f490a3445dd642233947b39f485eed3a5fc4c7226b. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/DEZN82484941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf62befb0fa13d20e40916279ffd29db03ce200a66372472c108fb36916655b2. 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/DEZN82484932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e060fff122345a751b4a2475250a82cf7654d54c101895546639fb7a33e78da. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:33:52Z), 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/DEZN82484971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58394040cb685dae1e684eb7628b08cf42c613e15c61edcdb37164b9af1d4c7c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:53:35Z), 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/DEZN82484969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d7437be0d4868b2337ee68ee05f80d9a0472e0d60a7f7478c6aa536eb83cae. 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/DEZN82484935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912bdf51bd3f39cda0d766de6a9627565463affbd616f62d21c418fc47b93c95. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/DEZN82484931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efd068f654994e056a534c99201085f53f8d1ffd16c5ae2afd03508e64aa50f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DEZN82484930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820c26af68f94b3eb188c0842a0720b9506df053ce7bb30ab5a3cbe1bf8293dd. 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/DEZN82484929.