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 0xfaa258827c96742058961e69008b505e0c4002c937ac495c7a7a9649e56ce93c. 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/a7bc1cca-a512-4569-82ba-34d4851443df.json and https://artists.proofprofile.net/proofs/artist/a7bc1cca-a512-4569-82ba-34d4851443df.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 0x66fd310ef3485cc6e22fe6d00576249409fd2d926453396a7c8cbe08c2a3d48a. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZZ972312575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0381e7a78bfe56db769a9e87edf008921ce4726fef4f9b2f1fd8a1de18070668. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T14:10:55Z), 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/DEPI82310752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e069cd356ef899a7920fcc6e102dfad3769a180d40813d1cf542cd2f7703e7c. 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/DEML72400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8f32e0f73fad460d88e86e151175afe895e871091bc71e338aba64e5ead736. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/DEML72200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca295d039041b81a7017ab242a3f16cae9c3bd95d5cbebffa40746e88f35750. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEPI82322672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d05837be8819db32937a7704fc306b8ba4067d310996c4c95898e91a046dbf. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QM6P42359098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a852b2fb01d4080328defbc097d1dd81f0f51793195a51d3eaf4d3559588c1. 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/DEYQ92100085.
Dancing with Tears in My Eyes - Mindblast & Ryan T. Vs. Basstube Rockerz Remix
Dancing with Tears in My Eyes (Mindblast & Ryan T. Vs. Basstube Rockerz Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbec890315b798c953b56cb32fd988d74cdea7f6dae140c6e5115b9868083cd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEYQ92100159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80d3b78d3fc95bfa71e3ab971beddd22cd863af9c0586bb8a989f5efa040df3. 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/DEYQ92100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80d3b78d3fc95bfa71e3ab971beddd22cd863af9c0586bb8a989f5efa040df3. 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/DEYQ92100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03296af7e738128f8c41a0f3a748f91424c406cfbfd11740c10cdedbc91c9977. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/DEHK92107592.
Dance Covers 2022 - The Best Party Hits Only!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a852b2fb01d4080328defbc097d1dd81f0f51793195a51d3eaf4d3559588c1. 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/DEYQ92100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a9ab3541ac7e957900c96ef40ee5864980de0602f5a28ea7102c173092ce95. 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/DEML72200188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d43875ee79af5b1a7d5784287d5b4d45c15d27e8417d4f0e44f2d3f12a922a2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEML72200142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb699f453110e77849b85ad68984212113f2bedb920e908904f122602f3833e3. 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/DEML72200090.