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 0xd56149f518f536ef9a6e3f434a2e2bee82c9abebc94347b15853e565d31d15f1. 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/9973e9ec-1dc1-44fb-8ae4-da84e898f07f.json and https://artists.proofprofile.net/proofs/artist/9973e9ec-1dc1-44fb-8ae4-da84e898f07f.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 0xa4051366c2fdef8f8d4ffaf3342c47e63c96453a1fddcf4d44f1bc1dff6f4288. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR96X2070471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aace8e194779d2f815ddd0cfaaeb3d94b4c00541fc2d23ccd5d66fc6ce15b73. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR96X2070473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36dd4910280f60d5b976502d2d7b56fbc6af8c20f6c704e8d40cd17fcbc4ae59. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR96X2070475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a40e7fb2cdb1d18a565004ba6e0ad7bc0489c4ba4e5d81f7429e4cc4375a243. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/FR96X2070477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4e5b0a7c3cbee1ef3e9997109d2031561030082dbc988712afeb2de5f0d668. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:35:01Z), 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/FR96X2070478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409028c4885d53383d8b77475a5dc1c136e2804f465091b446d796ab60cfd3ce. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR96X2070479.
Country Rohany Manado (Tuhan Salalu Tau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa773701b5db89ad231f705e4f5871f4edae8ea4d36db03a7c9b42ce44d3ff37a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR96X2070510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2e9876771e68d90fe4189fee9e5c876e3b6b26055a7b5c6a90aeabba12c094. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:51:15Z), 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/FR96X2070517.
Country Rohani Manado (Torang Puji Tuhan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fc76b6e2eaf505411f667c240e8e3e45e389a3e0e7a986598445893563c0ba. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX282094358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a22b7d28fbdf2226b45e27241ba2dbfa0df3e703dd321b9c2870c5c597099f. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:58:49Z), 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/FRX282094360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519ce50778238819af34625a4285cf06d164e46927308ba6c76529c44130f25f. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/FRX282094361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2813ef6269467727f93ab266ff0ebe18b180da213e350643350ea51757694c. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FRX282094362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41658eda6796502090fd91812e3965413814e502ec58170afe52a3c12005bf4e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX282094367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d30fc5bda7bac0fdd76c8c055098737b6d62861e61402d12d8a71e7aaf2b0b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR2X42108451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afe3809fcbfce11c7c273fd3e788a2472c6e9069936f2112c3ce33a475c694a. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:46:51Z), 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/FR2X42108453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5964850cdac2a51bf09f598675d9a3744d9920217bad3ac95df491787ee008. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/FR2X42108454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3516962d90ef12e3b9bfa01e405bda9f4c55c1d18b74bd81419aa9cb46c940. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/FR2X42108461.