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 0x662062f4ded4ae126aee67a5e2d5a05ac5bb9d684213c9314c9833200a187f7f. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ef917cf-816a-4dd0-a1db-521133118ef1.json and https://artists.proofprofile.net/proofs/artist/2ef917cf-816a-4dd0-a1db-521133118ef1.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 0x48bfaec4ca6fb6f64b659d0688e22eab858605102a98fdd12bea1051e824f36f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZYFZ2506782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24a8481d8ef990c4d89a839dff8eff6320e59c8c62286b0ce574c9b0c459469. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZYFZ2506920.
hellstar - Heavenly Instrumental - Slowed & Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e246cca4589584b91458c2bdade713fcdbab01fd166e35ad5f5eb4638db7da4. 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/QZYFZ2507418.
hellstar - Heavenly Instrumental - Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d578885e11fb7e8a0ca90879e4eb306c1667a162121b70ecdabb55459fe812. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/QZYFZ2507419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba08b6ca9cf34d29d0e6c007ebbec21f944dde87690a89d4a276fe0bdedcc77. 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/QZYFZ2509191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d4797db15b4c05b4455714ac99044f9a6905dd63123b7e60fefb8303ab29cd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZYFZ2510209.
desire machine (Instrumental - Slowed & Reverb)
Dancing with your eyes closed (Instrumental)
Dancing with your eyes closed - Instrumental - Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254b157543813cd2971b327d9f502c83c8df7f3242bb53b888e059f99e5b868c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZYFZ2510395.
Dancing with your eyes closed - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf2f98f25218040c87508e9b6ba8a678ae9136fd270d786f34d9173230defad. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T13:24:39Z), 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/QZYFZ2510396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc4feb68affeca7b96329467c1ab6426eec58f9e2d662f1e84a655818db03f2. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZYFZ2509850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad52b5ff6314b5df1a8c97d2526e73c870e7a59a10c3cf050ca451c4720feb79. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZYFZ2511223.
Buena Vida Mala Fama - Instrumental - Slow + Bass
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ddd3887671c9a2b1a97ba805c8d843856dc2f1b2813a6b4b8b2c2d91fa84d8. 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/QZYFZ2512497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb77ab14279c336354ad2d96e06a1e57564dc494a3f6e5935fc6decafcb123df. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/QZYFZ2512498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673b0a4f1687ac8514dc895ffc1b37e036f54846f3a515c626fe0c9f1965f480. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZYFZ2512125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cd1ec9bacf5764a0c2c9389be936bcfbddee6eb974851f0db0e4d86531afe1. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZYFZ2512126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e8b113542aa00ecc1baa21eb8fb14494b18cd4a21bac607c37bcc63c98105a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZYFZ2513464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb372137eb26d41ca3f205df875468dedf417059751a1ff92f1882f2ba1b5a53. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZYFZ2516157.
did i tell u that i miss u (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5cdfdf30cd5d4f953de12e8a2c6fa5b88460cd88938d3b2ce1242815c14ba4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GXHZK2559049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3dee11d7e1f4fbb7db6321c08942adfbade6d9ba2ee6befb4063b3b6daf8ea1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZYFZ2521303.