1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb863fef058b27ef25aa697049612dcb569cf530d87a7b296ba2c92bc44f00569. 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/e4a452ea-2fba-4fc9-9125-a24c510f9966.json and https://artists.proofprofile.net/proofs/artist/e4a452ea-2fba-4fc9-9125-a24c510f9966.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 → block OTSBitcoinBlock must exist at that height 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 0xde137ac6993b7a7d720d204f031dc8c00a417beb3e5bbc387db4165d1ef1af03. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUKDT2300318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0671cf828ae672ef4752655f802b06c85c83eac286dfa5e4cf78635d9619d75a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUKDT2300371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761685323cc39c58ff09d5798bc5f405b06a23b96a179ffd988a76fdeb918cf6. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/AUKDT2300963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1681530f7f98139881fa2b903fa50fca5e1498a19c72c2ae54d77fbc81e3473f. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-03T01:37:49Z), 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/AUKDT2401299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b473f179467522a603ebc66da64ac0ff7bbc531c24c52605dd6525413d63dd3. 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/AUKDT2401301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c9443b0d4ee00de2d9c598a87d6978c8e5c599f7acb95e576df75ab41d605f. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/AUKDT2400157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c88a80edf3cfe39bf26ed232e53a1073a2ef8286a258dae472a8cba4bf6783. 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/AUKDT2300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1d9d732e1d7b79e985787f7f2a4478b85db7855f648644641d57c9534cf1d8. 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/AUKDT2300312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c88a80edf3cfe39bf26ed232e53a1073a2ef8286a258dae472a8cba4bf6783. 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/AUKDT2300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1d9d732e1d7b79e985787f7f2a4478b85db7855f648644641d57c9534cf1d8. 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/AUKDT2300312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9dc6bd9513de2f8d398ffe0af7b09a9f7046011ee7ae81059098041a585365. 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/AUKDT2300357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9dc6bd9513de2f8d398ffe0af7b09a9f7046011ee7ae81059098041a585365. 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/AUKDT2300357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c8a8d69702a8e9a1dc09877b25e49455deacd5936c2f5a4724e36c5186e0c4. 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/AUKDT2300370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde137ac6993b7a7d720d204f031dc8c00a417beb3e5bbc387db4165d1ef1af03. 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/AUKDT2300318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c8a8d69702a8e9a1dc09877b25e49455deacd5936c2f5a4724e36c5186e0c4. 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/AUKDT2300370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde137ac6993b7a7d720d204f031dc8c00a417beb3e5bbc387db4165d1ef1af03. 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/AUKDT2300318.