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 0xb05fa7493d3dee4a33e544f4b6e0d944750a783a22a3fefd37dc05e22bff4449. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f647ae70-9f86-4461-ae11-23e2d6ad3b96.json and https://artists.proofprofile.net/proofs/artist/f647ae70-9f86-4461-ae11-23e2d6ad3b96.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 0x7e9b49f83117cb1dc2ef69a2ff3a1f5599575de0c231b6a26d3d882c273a5844. 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/CH3131620131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29213f5d0b4fc5666b02a1591447e35cd7479ea93d2bd9c704102b72e5fc70db. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU671702536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b83ef49d3b286dcf8c7ce0f9b260a2b46c1be4df2363d272d809729fc1b5a99. 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/CHA811800179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aea46185520728429a090296dc2742ec4357508d00b306c01a59401575336bf. 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/DEW871506218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea34175ebeb96709ba71486a3863738b6d6c55c859dfbee8565c86fd3ea1a24. 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/FR10S1920448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c816d008f42b05d58efe1cb2618b369c9e4481a7a427415297f98333646fdb. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DECL81600295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4d992eb1765d8cf03d08c62529cc3a55178ae09589f9c61c6cc0434ca1a219. 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/DECL81600297.
Endless Music - Balearic Ibiza Grooves, Vol.2 (Compiled by Paul Lomax)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb63594904c82f898221e96ce751d3cdf10edb3c3db318f3ac060d5b9dbfab0. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/DEW872007573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a13060f033a626f83994efef7aa0f188a2a5421d736af8f5bdfb9622c00f5a6. 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/CH3131613074.
Shir Khan Presents Exploited Ghetto Trax Vol. 5
Inside Ibiza 2022 - The Sound of the Island
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638ead58f5683771db52ff9013b6f70669031958b2eb89b1e34f40b43316115c. 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/DEW872104860.