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 0xe50f5bfd19ebcbc830440e68041df632fe02cba20097f88457e9660845e5a636. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c863325a-d168-43bb-84f4-a3bf4b26ae0d.json and https://artists.proofprofile.net/proofs/artist/c863325a-d168-43bb-84f4-a3bf4b26ae0d.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 0x8f850b95ae667e067276c3575323fca0742332609682767fa4f7ea12ffa2aa4e. 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/DKAZ72328701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d479f163303ae71c1be42fb9e9d537c93631530cc2d9918683b3c59ecdac33a. 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/DKAZ72328705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ff8928e8a28065e7167583078343d64285cb38f30c6f0ee89a8f287bb0ce2e. 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/DKAZ72328702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0771683df65ac00977e0d0f6ae7a9238f7cde90146d66b5ead693a9676b4e8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DKAZ72328703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1bb760c01248b22260081669f2aa7167209587e5890265fbb033412a6dd043. 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/DKAZ72328704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11846d7ece36dc1c3236690e35518532e5e7e0f7a5dad63c43cbfab3bc81eb80. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DKAZ72328706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bca07f15dcbddccd2ac95873b469eb58365dd5e0d7a27d4275fa6c9b9c5123. 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/DKAZ72473001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154bed5640e8ef49ed1e45184cee10e4e3d57a2168ca1997e4eb6b1a674b6247. 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/DKAZ72372901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1bb760c01248b22260081669f2aa7167209587e5890265fbb033412a6dd043. 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/DKAZ72328704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f850b95ae667e067276c3575323fca0742332609682767fa4f7ea12ffa2aa4e. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DKAZ72328701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d3594b8363e175e421c66afabb20d9be5c41857d1f251610b3475cb92a540c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBSWG2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecdafdf3d61abea6ea60ea4e16ad31f5e4c1a28a3159e076717df7efc91e08d. 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/DEY472070023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3c8243dd38605f8fdc144e058ebca98dedc76347a783ffbec9bbeba9691c61. 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/DKAZ72048702.
Café de la Luna - The Chillout Session (Presented By Déepalma - Compiled By Yves Murasca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade010b94d220e24e0d6879c58657531663301e475c27b68b6145b7314112cb2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DERN40600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade010b94d220e24e0d6879c58657531663301e475c27b68b6145b7314112cb2. 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/DERN40600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f84474bad25207c322d3b2cb33eee8c9d5ff2bf8652ae6c5a75464288326d7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBES51200357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f850b95ae667e067276c3575323fca0742332609682767fa4f7ea12ffa2aa4e. 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/DKAZ72328701.