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 0x1b58d858608fa2372b59c8671c82afaa75b59c2cdb8141b045a325e6f709dcff. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6acc7e7-150c-4970-8928-ea9dcd47d137.json and https://artists.proofprofile.net/proofs/artist/c6acc7e7-150c-4970-8928-ea9dcd47d137.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 0x5352295e0635e9fa9f11fbff268269a48f7e168e33fe05ec18a60c4a00a4e379. 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/USYBL2400572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e201bb4ba0ca6d8ac527cce59746e65db90f9fa0ccf238679da3652f9fb4a2. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USYBL2400574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73394a4cb19439b6d21a29c2636c7c2a8cb719b6807720af1ec734693fd4bcc. 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/USYBL2400576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba420c1b47186c92714645d93d66614122674af9fd41f0f8e13fd187d5720dc. 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/USYBL2400580.
Les Damnés ne pleurent pas (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb346f9208950b6ecb7416fead3746dd956397c72106cef8c15cc8a793a271b7a. 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/CBDXE2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecf7d4cf7d4d5ff3c0f4ce4f1393bc2e2eb0c39c491fb2a6b531908a487bc33. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/UK8KB1400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bfeccc2fd4ae1006b81b7cb242ab9fffea5dc42547153419b277c43e9d102a. 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/UK8KB1400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f364663779edf119113967853744462f264d3b4746d59e6ccd4b8d14d4e5581. 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/UKQC92300202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756b1b10eef2627041efcb0932f9a796d2330d3c6c6215c4c744f3c1a67b7d2b. 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/DEXC82300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b04678c7f8b11790498752ba8d587740c0f2602bc9a307f96c7ed851cc5db2. 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/USMTD2200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548252fb0bda026a23279cb9b1210bdb7da33a1e7cace9f9d3975dbef7de2122. 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/USMTD2200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf9a8ef33289d1ee3b76d13bf003b461fb5e89fbe88792d912e90d7c7c25845. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/USMTD2200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708d64efc1e1421155ffccd3ca26397f95defac864227ad99e8cf885013d65c2. 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/USMTD2200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52360017b8cf01704ce80a09dd91eb8aed9fcde228ca28a8928586c019c800b3. 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/USMTD2200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc58d09174e8352e0a02ac4a2ec9cb596d78c3084fdbce5b1a68ac48fc2ab32. 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/USMTD2200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6081e7330dff5a63bca86708620df2cd25d51fdb3231e6e99b8a5a11dda73c. 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/USMTD2200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe112e8d6d9230a473e2e1479e5851440187c3d906257f8c41c2fcdaf04152b3a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USMTD2200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b04678c7f8b11790498752ba8d587740c0f2602bc9a307f96c7ed851cc5db2. 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/USMTD2200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548252fb0bda026a23279cb9b1210bdb7da33a1e7cace9f9d3975dbef7de2122. 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/USMTD2200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf9a8ef33289d1ee3b76d13bf003b461fb5e89fbe88792d912e90d7c7c25845. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USMTD2200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708d64efc1e1421155ffccd3ca26397f95defac864227ad99e8cf885013d65c2. 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/USMTD2200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc58d09174e8352e0a02ac4a2ec9cb596d78c3084fdbce5b1a68ac48fc2ab32. 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/USMTD2200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe112e8d6d9230a473e2e1479e5851440187c3d906257f8c41c2fcdaf04152b3a. 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/USMTD2200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa858bd1fae4e6c3dde53040146f28903486455bc962c07c4157526451978ee. 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/CACQ21914601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c040966d1c2c5fa632508e5c8dcf964709538a6a39d9f94a0c7952715d2301f. 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/CACQ21914612.