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 0x36b803d7eea258469deee53b3aa659bb2b887cc036915d2e4374bcc40e4a2434. 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/6ffae415-4f7a-44f2-98a1-1b87a007e9d0.json and https://artists.proofprofile.net/proofs/artist/6ffae415-4f7a-44f2-98a1-1b87a007e9d0.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 0xc8e87f9f9574c5378543c434812006b68d84ddded129923423188f1bf3231f4a. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/DEOE81220025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b7a44eda2ea26681c52d5a2224304ae761caebff9fc60057f4eb25e5f7c8d3. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEOE81220007.
Delirium Tremens (Robert Hood & Benjamin Damage Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b6abbeb1d682283066835832c70da6dd47c5f4ceeccba973fdf1d7f49e253f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEOE81420101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063f4dd45550b4107b92562aa3fe27f6c62e0e77a158f8a32d8ea93ecef1d04f. 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/DEOE81520151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37254832d1f28f2735c8ac6792de3b7602331b759bf3d2f3f25ccc357a51727c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEOE81520152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f0ecbe36662126604d453aa71f010b0c846fa8a861a280e1ff14db80138bb5. 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/DEOE81520155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec9a20a0b92198eed50bbf76c050c47e2c41a62143f7fe0384f2cd894877538. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEOE81520158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac9ac0f8c8098200097fcff58d517bbe5539e560d1f937952d6cec29d932896. 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/DEOE81520142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8d1ba4b0f0c14f1d409b874156eb7691ed058a49fc5cfb4173fef0455478af. 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/DEOE81520139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf889da7a5eb54016ed06f632a42ea13ce12945fa76ec6267345a3c36f4d3dfb7. 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/DEOE81520144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c400f5448ea3487eb2d8631e3ec0a64857a880c9341c979a76f4bd58a20147. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/NLCK41064194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a0eacf7643a1a737fee418e5d27e74d929e5da5bacd08ca3540203883435b0. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/FRDX62311480.
Robot Evolution - Benjamin Damage Live Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252d5042646274e9de744598e9a17f9166998feab2933917cd24ba5a47cbfa76. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DECY51901931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f10534448608ed00713894561391396212f61f2663e21f6b869b25dd637160f. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/NLCK41076958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7a7b9beafa7e0a174a50750d49eeddf4a04791844eed95031df1b35b0f8b8f. 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/AUXN21800170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824d048b39103b45f590071c3a884d2fa63143b04672296d23d5946f1a0a95e3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBVHV1500145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c489596d84c112a70b9f54ef2b4dfa78c313b4d785e5c008461f5c964cbddc4. 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/DEOE81610342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6adaecc5c73a052b6760cca4ca242d8ac6e0d5c6f5bc3e742be3632a5118bc. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/DEQ202300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f36ce73120b4f99c2a4686171aeb86aa032e7a3c58f0f59ba6f9f0f5e1053a2. 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/GBCFB2300636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f36ce73120b4f99c2a4686171aeb86aa032e7a3c58f0f59ba6f9f0f5e1053a2. 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/GBCFB2300636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c598e69e59234270070901f6dc1bd6c5d312a8cb6b154486ce52ddb76a8dbd. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBKQU2328650.