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 0x1842d78c71fd487aebfc62277d2b9df2c4029e819cb69abfbbe68984fa8571af. 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/b5df4f4f-bc21-4ce9-ae54-b48e3c376a8b.json and https://artists.proofprofile.net/proofs/artist/b5df4f4f-bc21-4ce9-ae54-b48e3c376a8b.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 0x46f8f6d20a5bfe33b67382d2c33851a01b6b206e817420525545d086f8de7fa1. 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/DK4YA2400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c8303e4b839b75d06228d8f764bf8c8e6f2e61ccf8a2dbc24f5524a98a1f96. 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/NL2QC2101222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17e6b4e582e4703efcc9b4093a49940cba3322875dac4d94009c1ce41340632. 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/DK4YA2281801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ada5043b5773d332ef52d9992e410cedf501d5f17e10b5f06f58335e47d0530. 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/NL2QC2000128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773f42316d8de5211e545c0b8f9f91318f287e38da6bd1e099891c7e5c688c6e. 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/DK4YA2375001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d219d0cb857129cc5b08a15cba46cd0ff9f426d66e6a45e9c6d26b81e6510b8. 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/DK4YA2336003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fc5699ec4bc920c1ad04995ed9687f3b511424a3b04b72a6d29eb33f0e55e3. 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/DK4YA2343001.
Run Away - JARO & Ron van den Beuken Remix
Run Away (JARO & Ron van den Beuken Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040a392ebfdc0cb6ce1f0be327795939e113d3872a8555ad1acc2ceb31950c3d. 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/DK4YA2336001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d13d3fe2f931798519766ad54e0409989d34ec766656e98de6e1f17e2920f64. 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/DK4YA2295301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ec63cacbcb0b50ab5de5dc1b7b6e8e2254db652ea079cddc65f79a47c2b173. 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/DK4YA2289201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c2304a0c99ffe8aa49ce75f20db7f4421104e9766992892858011c3dec34af. 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/DK4YA2165001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a2a756c60ea0f2e1fff0e0c1167bb1e856b209be11718bd25f683c73b4ebcc. 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/DK4YA2117101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85750b70b9d6d4cd0cf097740656d846aa56f97372de98b07cd2a0a783f3ae3. 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/DK4YA2014601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd68c6b36bb2767644020d03558882eec865b4e9cbb51731bb22253265921041. 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/NL2QC2101479.