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 0x15c410874daa2ec1218e2d4fba45749a9e5225c2b520dba4756c3ab17dc7c36b. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8285309-cabc-48ff-bdef-21d4dafd83fd.json and https://artists.proofprofile.net/proofs/artist/a8285309-cabc-48ff-bdef-21d4dafd83fd.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 0xec5137fe2fb7c69f6d43324b659c02babb7ca2bc24f7d8e5960d3a5cd58a4aa3. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/DEBE71500302.
Get Physical Music Presents: Ibiza 2016 - Mixed by Roland Leesker
My Warehouse (DJ Pierre's Wild Pitch Remix)
Get Physical Presents: Acid Love - Compiled & Mixed by Roland Leesker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3102a28313169ec383206a4b300fd4ebe6da89d9ad27f0cc339605eab1aea5ad. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBE71900710.
Dancing In The Night - Roland Leesker's Ba Ba Ba Bam Edit - Mixed - 20 x Get Physical
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b7b0f64e4a4f8a4c5a28be43ee11b729ba86424298688d683737deacd43891. 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/DEBE72200739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4158aba98629d1f1bfa0c1f4f0e7caa14ae33242ef829f1aed30ed33a78efd3. 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/DEBE72200743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2169944aed24e8f8d6e268168c60c64c78efc1597d74031c942d52f5a1fb858d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEBE72400342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39887cbbcb169f701d18c773b970e6dcf8f9c057eae4168aacf31c5379a7ca9. 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/DEBE72400474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d59d8336ad3fed69a0b9e4190bfb4976dad74f0b1b09f6e4485dea041d418f. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/DEBE72400380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b1e86dc48ed829f93b76a9725710811e00c1063e5140a3eafe63d2e65c102e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEBE72200190.
OD 30 - Acoustic Remix - Mixed - June 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a41d62011da6ef9f7e16e9cce0dbec4359c188c592182efa946b6e5ec41058. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:37:16Z), 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/DEBE72500437.
Sonus - Ian Pooley's All Live Remix - Mixed - June 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b78e461f049eeaea6684ed5fcd81eba656d217af0bf7443c0ede028e3b8dfa. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:18:12Z), 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/DEBE72500439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbf4bfa682ea4d4dc9ce0ae35f9dad4164f4ed7e9b0888acfde6c5d451c2dbe. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/DEBE72500441.
Impermanent - Francesco Tristano Body Language Mix - Mixed - June 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab574d652c6bfd00d1d48963d96c6320d02e366a0dc277502d74d7036c7d1aa. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEBE72500445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e11bab1b2e53a6e9876a5178be6d2a603a27b58637fa174ed736fa8c9d956b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:48:08Z), 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/DEBE72500446.
Dancing In The Night - Roland Leesker's Ba Ba Ba Bam Edit - Mixed - December 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326abce12f741ad1a1e39fb19a63bcd37b8b26ac4f5453a61d0ad122787c4ae5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEBE72200830.
What Is House Muzik - Roland Leesker LoveMix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9f22d0be0cedf77bd60785c6118c1fa969adce385714c7e3c6490ca268a4c4. 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/DEBE71400263.