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 0x633c8b361dbf38f041a329fd3ff128fd522231c2e91b1f6db52c841598074704. 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/0b06ce85-c10b-4282-a9e2-2bffd5d98dda.json and https://artists.proofprofile.net/proofs/artist/0b06ce85-c10b-4282-a9e2-2bffd5d98dda.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 0x1325805ab8fec804c0a4cb2f768c9c6d11cd7cf07838b6d31120842961e56e30. 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/USSM10903247.
Ascension (Don't Ever Wonder) - Remastered 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f910ee48f6f7182818d1462ac9b8e56c141492827c93e79146c1ec03215a97a. 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/USSM19600035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4552810bc502b9c2e9a5965b1c69e1a18091b1d3754eb3e89377aca37e148b3d. 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/USIR19902081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab937eadb4afa3e885de172eb87759439545092636ce86e2038b7c88c026ce9. 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/USSM19502838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27e564db4e0a07c3791ddf8ed69aafaafa2dd1ff1e16e6938c049bda3ff91a1. 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/USSM19600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab937eadb4afa3e885de172eb87759439545092636ce86e2038b7c88c026ce9. 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/USSM19502838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef13081cbc2b2d9e9d87f57939dd06dbfb9024878c79a696fc38d16c266d865. 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/USSM10414235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f910ee48f6f7182818d1462ac9b8e56c141492827c93e79146c1ec03215a97a. 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/USSM19600035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7835afdfcc447ade64e606504905441fa2e5d2b3dc11b4d0b9ace45af69a8fdf. 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/USSM10902047.
Chillout Pop inc. John Legend, Miley Cyrus & John Mayer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f910ee48f6f7182818d1462ac9b8e56c141492827c93e79146c1ec03215a97a. 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/USSM19600035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8198a552309604889b4b0f44b6551d20777e89f020b06dbf03db433f84253413. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM10107705.
Sumthin' Sumthin' - (Mellosmoothe) [cut]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20085788c74e81ac20eb136d1d229e723839010b4e26e9ab8afb96bc0dfe26db. 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/USSM19503485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27e564db4e0a07c3791ddf8ed69aafaafa2dd1ff1e16e6938c049bda3ff91a1. 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/USSM19600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27e564db4e0a07c3791ddf8ed69aafaafa2dd1ff1e16e6938c049bda3ff91a1. 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/USSM19600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406b5f8c607544d318b926ddf5f57b69a79024661c474e3b8f44965b001d4df5. 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/USSM10901885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862d7fc7aec6246587992891825b126fd14e5d9b65374c249fbf8f767fe080d7. 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/USSM10105633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76dacd20c65e1c5e80dfaf751459365357c95b8dcc27d30d1a074f77b250d038. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR8GV1714510.