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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda72a9ac5596ca205b7d97e8bcb63da4d489a79898e73d5628d0156e9c01552. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dff083f2-0690-4fe8-b5c7-be07a11fe09f.json and https://artists.proofprofile.net/proofs/artist/dff083f2-0690-4fe8-b5c7-be07a11fe09f.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6637c72ffccc9d9e2ea4b651ff321d2c93df9138cf4c2d4296dd56139fe8e8ba. 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/GBQ5W1400001.
Haze - Marlon Hoffstadt AKA DJ Daddy Trance Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba541c9492267da5740f020dc66d0217f81c68fd26a1bd1758f7e9d871a5c217. 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/BEN582200849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e2d538da45244c469c4884154c7ef7440658e1e19a61bdd6e53ed7b6819e2a. 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/BEN582200850.
VULGAR (with Madonna) - Marlon Hoffstadt Remix
VULGAR (with Madonna) [Marlon Hoffstadt Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882d71fa0596c161524f4311765ea9036077d833a30fd553d63abd5a4d342a70. 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/GBUM72306238.
MONEY ON THE DASH - Marlon Hoffstadt aka DJ Daddy Trance Remix
MONEY ON THE DASH (Marlon Hoffstadt aka DJ Daddy Trance Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb4baa63330fbf5567bfbe789ee542c04783058c0f3d29a52be70069585441c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZLBC2403609.
Kickin' Hard - DJ Daddy Trance Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59263633dd602b7f5d6f0c4391003df7adf53d2edc668c403902565eae2451a6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLF712306787.
MONEY ON THE DASH (Armin van Buuren Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb4baa63330fbf5567bfbe789ee542c04783058c0f3d29a52be70069585441c. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZLBC2403609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388caedb7d468bc20dbe9c3e99167f71d2d7a5f4abc9ee39ef5f5868bb78c036. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLF711503338.
i like the way you kiss me - Marlon Hoffstadt aka DJ Daddy Trance remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00378a945d74aebe6027e4148d0f5653cc4464ca21afa7a7e354da0eef8cdc79. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZJ842400615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049c9c2a53097dddb01419ebc1c396fcb08e7ae9a533019323cfe84e2371ff2e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEKN60900520.
Once Upon a Time - Marlon Hoffstadt & HRRSN Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1315af875dd310c5895a22aa0bbe08f6807243ad2109220f8113cfbe575c52. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/DEQ121218248.
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 0x3550dd1d3009a0ef94ea88c65aeac17f7a9d93a48c2c8788bd1d80d0fe6e5734. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLF712306786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd3e62dcf8054cea0e17f18599b78e0a554e3e5768f66556185d0fd3ca822b3. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLF711500199.
Armada Deep - Best Of 2015 (Extended Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d47523a926d8808cb3eced0362e89ead7e7b517033b27a33d14ba96079533f. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLF711500198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c16f047d55b95d254dd0327be7bf5459a9606f91e7ccf90e218842602a8fa60. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEUM72307812.