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 0x64c4f6ef20271aa845757fc380b89d82df5ea0a3e79fbd2f75e6cdd940b7155b. 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/cc1411b6-b7a2-4829-98bb-9ea38d79559a.json and https://artists.proofprofile.net/proofs/artist/cc1411b6-b7a2-4829-98bb-9ea38d79559a.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 0x623cd2e2161cd18e5e92756b034cfaa7a354a5d4b8726a16d44b8e09e92fbb1d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/IDA182234212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf285a30373b5dd0409721456f845327ef243332d8c4c9a801e966844323fbdaa. 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/IDA182234241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a63a2ad36aadb30da4e64283aa72e9778e5ef1516d53ddf9ea794894335673. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/IDA182234245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecd3859d0e64a26f97638f19f9d7271dfca0e1ff74953780891833be69c3ed3. 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/IDA182234246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ff6b97fcd6289afc7e71ac06d08bb47aa7e48503fa9a78c5ddc15861a5e8a5. 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/IDA182334765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4051467d8b5ee5926e815afa914a9cfaf01bba7e7afb92f5cc5bf863b329fd8f. 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/IDA182334766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c747967eba866f84a43c770942db1103ee21b5a7c7d6cb7dfcad3d437d1008e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IDA182334767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53062b151c2d8d243d1dd45551520b7ea35f5961c3480ee7b81489593dd906a8. 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/IDA182334714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541af62151144e8163aab0ea78e939567916f9e9679fefb0bc14893bd73f4751. 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/IDA182334768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0b2bd7804146865341a4f6bf6fce5cce6deb9a87abb76b8def16af9161be5f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IDA182334715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c6fb7f882cbdd5eb63898cdc92d67d739ac1eddd492f0df5f2e8ecb5b4d1d4. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:03:32Z), 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/IDA182400607.