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 0x0be01856f5917336597a4a50f2fc827d37b0442771e5f98f06a2de132b34b0d4. 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/f5838537-c4a4-4bb1-8b6a-c78b31450a41.json and https://artists.proofprofile.net/proofs/artist/f5838537-c4a4-4bb1-8b6a-c78b31450a41.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 0xcf5dbde692b11dbc9c0e7efbe58d14dc1faa84e79c257ea585112a36adc0e333. 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/MYMA12000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fa31fcb145df73602b8e6e9fafef9814cb332ea920fe6bf2daeeb55eefd764. 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/MYMA12000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309cab5a54c889bedd8397b4018c740f30ba7aa49766a44d5b30c39751235260. 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/MYMA12000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b31422b5fab9386f292fbdf8ede926b528ed44ef29e066658d750b4196c6e75. 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/MYMA12000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce10616766bbe42176f125861b452fd098832609ba4c048377d3b7c9420108e. 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/MYMA12000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d151c230d211f4612b44cbbf31c6bc6dc1ea54dc28af9ef927333353897febf. 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/MYMA12000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff266c9bcf2f37045d858c175615941ce9ec9f62db1aae992e71d5a217827f58. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FRX452013061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc12c3af3c3887dcd5b80d74027bc79fbc9beb25f30432f0068042f28365bf9. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRX452013063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94575fdfad134ad7aabcee9655cb1ad51e8387f788e39d2d6d619d03780677c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX452013065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79302c8894a6cead3165fe45ae10e4b95d1de84dd42222e0b7c2c45050451db6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR10S2377742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc266976d8ef6eec38bb53409ded25585dcce661c1a689190a275e03eddd4837f. 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/MYA112400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849740aca3591b7e74855dfdc7070bcef15951bef2e3ba91eb6d70971dfc5518. 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/MYA112300259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60aa667730817435c0dd72c5b296245fa6e78da98668728f6ebd3265f0293037. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/MYA112300308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429357aa0b23265ffa82f3fd74073fa15a6b7168935f5cfb189be36741b26656. 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/MYMA12300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d7b4126267cec8ee75f3eddd76d27da978abb70613abe5825a2807799cffa2. 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/MYMA12300201.