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 0xd88e9242e453cdb71b747517437ac06d046a91215d01a7f5fb0ed8d8944d688f. 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/e2c12b84-9b10-40a3-99dc-b4fe08c98302.json and https://artists.proofprofile.net/proofs/artist/e2c12b84-9b10-40a3-99dc-b4fe08c98302.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 0xd4f56fb33311a9ae19424ee3d999a5c6d70e05893fa03f60e1250bfb51f1b567. 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/SEPQM0612455.
Favourite Song (That's All Because of You)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc80ac8d7e0ed4db57fa270d526f289f537b86b8d8b0563ad74d429cd28d4e80. 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/SEPQM0612460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac1d6b3f1372730488b636c03037cab0dec37966ba5452168ec5e911700ec6e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEPQM0613764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543f7c3fd877a43e36b3781820354eda8b8f844b6d6270a3592af239f4c6d993. 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/SEPQM0613770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5f4033a80a36029f7103a518ce17c56ebbd7470334391958155fad613b3889. 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/SEPQM0613771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe992585aafaa4c0218b6b5bd2c89d8558b1c56fd27e3cfaf61db6b8eb411115f. 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/SEPQM0613772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7ce2713e8c4edf2ad013f3e3faf8dad2d291af5fe38bace4647965e391e889. 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/SEPQM0612479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ad5250bd7d8b920a0d8fe4c44c924a6e7f1af3c0cb425ad35079e654dd48a2. 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/SEPQM0612488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916c7bf9d5151225b9a23158f2c2797d7a906713c10ba2a74127711ce08cf7da. 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/SEPQM0612457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bb4ac839bff5749e566717b67e4a332e82c75801ff5c2701eea90bf706a1a6. 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/SEPQM0612461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6396fb05a5fb7e7238b661174d50722d7f05e865b30fc39bad485ad0ecf6bf10. 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/SEPQM0612426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187a01e7dbba56cb7be60cb597941fe34ab3dda033a77cd4543e366a089127a1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEPQM0612432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4859bc761d639828e0341ccd05dcdf3ca61ee6bf4046733df93342d3d4adf3f. 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/SEPQM0612428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be65fd59f1e574bbe31b064ae088b830c897eb11803649eebaba2ef6b42d668. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SEPQM0611433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9194ab63f322c9f26efb8e717109c8e5209e9b30b4e4364b59ac0c19428e4a14. 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/SEPQM0612492.