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 0x34325135b5b48f7ff90fb59587202db9be94807831a6fa1db3cefc34e2969bba. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6ee3bf6-ef8f-4ed1-9646-a5e90c3648f1.json and https://artists.proofprofile.net/proofs/artist/f6ee3bf6-ef8f-4ed1-9646-a5e90c3648f1.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 0x7452b4f8cde7e56192af92705dec3bab37be09b441ccc6f46c670ee334342bc9. 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/DEA811400683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5ed2c94b49225505c7889a94737af9155998000c745d72d2835744e236b849. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEKQ72100044.
Weil mein Herz Dich nie mehr vergisst - My Heart Will Go On
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca5ac77ccbe385dcf246e071dcbe3b76c18f0d5d683b467aec90b625ee3b5a2. 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/DELV42401284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca5ac77ccbe385dcf246e071dcbe3b76c18f0d5d683b467aec90b625ee3b5a2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DELV42401284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66af9419672056e394461e493721463654c90fd027232803b74572835370e231. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:09:18Z), 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/DELV42500391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb69376b6d5e52c31b96a57663eca737656af5c28bde87d96c3cce9ce63a128. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/DELV42401277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9709d6c6edf7fba8e03b0a729aac3da137643b2099d1c84c43bd3d47c64d6329. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DELV42401130.
I Wanna Dance With Somebody (Who Loves Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0299d13b5ca9a95d0e3e88a8f3950025a3f7a4aa88236f8e45a1851fdc7fd3f. 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/DELV42401276.
Lass diesen Tag den ersten sein (Duett mit Ross Antony)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbf6b8d083fe9f1b036c86698d1cd677efc92880c21d2690fe05c37294b3a64. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/DELV42401278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a1c3aa3d90ed3b0435e40c20a701925dfcbcdd270e3282de23192c97a2b9aa. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DELV42401279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164af0b38be56698c8647d1960ec42451044043d06176f17f5d67f1b1450720b. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/DELV42401280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfc060bbe2825aea754c794643cecc645a64dd44507014e390b684117952b9f. 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/DELV42401281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373268e6afadce59ac199e72b3771c3652f73694271ad908aa8fd5214c5cf78c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DELV42401282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18d91beb3962632e3e4a3bca96169f8b249679ff0769ea855d5e65bcab20430. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/DELV42401283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca5ac77ccbe385dcf246e071dcbe3b76c18f0d5d683b467aec90b625ee3b5a2. 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/DELV42401284.