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 0x0291d8693beb9a8220702cf068dbb93530a5d15fb5b70b9b100484a968987a20. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/024947ce-1816-4663-bc45-44100964a75e.json and https://artists.proofprofile.net/proofs/artist/024947ce-1816-4663-bc45-44100964a75e.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 0xb66efc1aebf1a9f3408e06256811d4fda3d5ca154e5787b3b2a7cc664d46f100. 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/AUBEC2058592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd6d489d6e26aeaa6680a997071bfd3841ee77f5d40a1dbc587735f25d5d6c1. 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/AUBEC2058593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e3a40ccea47741c2760eee8ea44def0798eb03f860a6e1b3936003ad2159fd. 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/AUBEC2058598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f614769b6694c4b0aef20c29a4aebd5f6fbe941d6cf691303fac256bcc299e0. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/AUBEC2060018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa87a70f110f2c96cfba2fcbafec188135beea3092cba9a297c43d05f62d851a. 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/AUBEC2060020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3edb660696c278b170f853358eb826ae22c955de0ca3c4737ed35fb6a4ab8ca. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AUBEC2064786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969425fa97b5ef5efe09d1efb7606f38cad40b5834a15e695d1eb04c908bea96. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/AUBEC2064787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484d97f5d3972f21362cb1319e261c076cf1bc81cb77e2fd73223afd4f1c9fa0. 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/AUBEC2069357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd76c40c3c4742cea69fa6935f3e9cbc20f5a960235a9386e628a2710e503255. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/AUBEC2069364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99e25e8e3c15efe6b704af797a82777731935d97c72187a50f26018fca26405. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AUBEC2067236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5b9ce7c6604a006fc8cb510c962b1dda6f784f9a20aafc1cd062666153129e. 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/AUBEC2067238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ea1d3b33a025e298ab9cc30da30e47cf667c2c5eff0a8533f30065d356fd12. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:39:47Z), 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/AUBEC2062415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9f1c351d5bcd9ac9af896dc2ac4b96a68227bf85bb4348e6f3a0bdf59cacd8. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:33Z), 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/AUBEC2062426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73322c44f0c5c1a84a3d4d31616ca6bc8eebd218f884a2f8acce9ca888a04996. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:04:54Z), 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/AUBEC2066314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402c4db7d04ed6877ba254efd6764c4c2f28c32c7db9d366f54f4d93e4b9a1a5. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/AUBEC2335407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20b0f083bfc10ce96fa9c992f08c971f6fb604a5cb64ef0b35e767740e0cee0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AUBEC2482850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091ac89d1d461c79ae484301ef85b524731f2683c93a4d86df86bca865c00338. 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/AUBEC2526255.