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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61dc07d4e213aaa63341e2554da60252c81b1cd1803e71249ae1f54a4351939d. 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/70d65ff2-4021-4740-bbc2-ea432755c3ae.json and https://artists.proofprofile.net/proofs/artist/70d65ff2-4021-4740-bbc2-ea432755c3ae.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17d6c3de832e48b33519e31e502f4a80298ea4c8a5e79d0541d5b31f452fb33. 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/GBKQU2060783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5728736357cc38fe9c71156868f83c3ac10e4bda40c84019496c311f10b032e0. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/DEPI82100883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8672f5f3278144684dc4be246e29e2d5a6c10d593fc4bfd9421e79cb053876. 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/DEYZ62300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ef2da4f88f107a12110cfa5821d59e60fa104b77d19c465fecebb9d3b5d7e1. 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/USLZJ2471283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c91ad3b884f16cd0ab607cf05e00e91a2f1c42cc6cc54d2d1c8097d9024b99. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BEB682400421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cdda7c6ecd985ee4e99f557e0fdac083b5cf17e4e8e4d53c912ac7f228bd6e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/CAQOI2408055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7735f2b7dbf860952644f14d0da7ce88098f5657ef4b52eab55105d925c42b6. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/KRMIM2469623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f1ac80d6e9e3fac4f9bea4a2d824acec2f6feaec7af700fb9285eefef80c57. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRMIM2469936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d96632b021dacf8516071c9017840667f2168efb8d88cd6d2b0bb4370cf2614. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRMIM2534896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12476cb4dbd60953d5f81d9ec39ebb80a3be14ae7ee800f2efefdfd553900aba. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/MXA3V2446813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e417b6913856cd28922d9ea2e897183b7bb1fe8e79c27ef861bcfa74867f8f8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CAQOI2523204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf092ba8fd312928449f64b6e24a917fbede934865c28529e8f8f22c052d85041. 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/GBLV62209168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fddce34baf81875db09520e666828a231a85daba39a1cf8ae275459535e9d4f. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CA5KR2183397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bbb3fc2df6276f76a1f2b014e3fcde78ab8e999c4f1264306aa4f93635d56c. 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/KRA302500143.
You Spin Me Round (Like A Record) [Aurede Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c77abb0f939e46daa585941e1bf5e5bf13191f223b6305532c0566b9a9d607. 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/CAQOI2410815.