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 0x09bb4a9c4a099a361241358a742da2a89b0a61ae618b6b75668a16bc93357920. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9094c891-e638-468f-9212-011281ffc8df.json and https://artists.proofprofile.net/proofs/artist/9094c891-e638-468f-9212-011281ffc8df.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 0x4f93627dfdc828d3311c80d0e01d02fcb9c7ded686e243fb764741d85c1d0cb6. 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/QMDA61840542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5004db12b7bb158d67e51f16ab18f6bfed649762311ad8456e9130f979f33d18. 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/QMDA61840543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dba157639a762ce92059a0c949ff12512f9be4003565466f7f03fd22133aacb. 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/ARRO92100234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aeabb5876255fa9174170ee27243428aa26d7a98eafd85f3b5eeb9e4028b658. 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/ARRO92100237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e80fe0fd5fbc36a7adab346bb16b9d8b2368f02daf88fcd083ffa3d5f2aead4. 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/ARRO92100239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a15822c75d227a29a73ecbb076f9773dda90e3852f8c73c975c73df547c847a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ARRO92100229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd1d080cd1bad151fbe532ff445302cab966388a8ab6c418d74490f3ba1c571. 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/ARRO92100240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bc1c6414b206bbe5818b6939684c3c9b52fdfe99dbc0a448ff7e63aae37413. 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/ARRO92100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f998d09c5dd05a486476c270c222556ee4ced834e575e321b40f2fcb8c041a. 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/ARRO92100241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bc3ef5b854a9bf0beb1a65fa039aba7271b794e4b333b47d447813daec6731. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ARRO92000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4000470ac2c1f24e1fc9fb71fd7dc4dbcf0bafb199d4f37e1aaf559392ba8e. 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/ARRO92000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b101d0f53cb8f1fd6ea62722a17134f6820152439c6ad8c8b378d4bfb5517c7. 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/ARRO92000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9720574834a084dcb27130e5ebee0d9175c6012f634b1d31944d39d2ce3b1d38. 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/ARRO92000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ade3e8959027141863a3dbd8e9aa52a78578f1ae33895245db2446a207cb45. 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/ARRO92000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6e1e010b25791bffc64c862c21644af9b0d7e1532cc905badd0b8274d5d620. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARRO92000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7f3a5c5c052666ad7fd7cbe5ec394b561c6760e17ca8b8561bc53ad94379cf. 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/ARRO92000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e9664f6b1bf38eb1165d39d11ff24c068cd9586ca9100a64d3219f5aba4a78. 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/ARRO92000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3602914e20704ded47c716436998210b117c3bbecb373bcad5cd855aa866a3. 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/ARRO92000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7248c5097326c5db3a7aec6167922a08a4b62fd93fcfa4c42bc9025bd37d1fb. 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/ARRO92000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a14d8ddd4c7e094da000c258eb210f9a290ede0af718a0e9959c92bf49a76f. 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/ARR092200281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bc711714a0a9e4433f166d6cf1da84ae8153e3d100d44f8e0b612093ef0160. 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/ARRO92100228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bc1c6414b206bbe5818b6939684c3c9b52fdfe99dbc0a448ff7e63aae37413. 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/ARRO92100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a2de456fe04a097bff031f38581869e22b954175826a6ffbf92d3f3da7a5ab. 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/ARRO92000144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa756587a104406fe5aa225b17481386f48a347095428cf48c9a43d891a226533. 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/ARRO92000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c44d4ecbef8f65efe01b07ff735705501ffd4f71dac3f42a6f8a78982873fba. 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/ARRO91900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fcdbbe3f9634c09771e1ec4ab7e9134ffdddd7f19b4b4aeadb7e601c29c210. 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/ARRO92000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4000470ac2c1f24e1fc9fb71fd7dc4dbcf0bafb199d4f37e1aaf559392ba8e. 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/ARRO92000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4eb173bac96a4ca5d32eeaba84aec83077fa17828318bfa72fac4e2fe4a78f. 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/ARRO92000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9b56294605ceb3c2c068d05e8aeb43bb6cd3067274a604b682bfb361937430. 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/ARRO92000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8c65a22e4ce64f08382f8b17589c8b9d4d50dd3ee6fdc96c743e7975731bff. 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/QMDA61843004.