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 0x3fed2f401b96bc6557361c810f475c8ddb702b8328c53297a4d38d694e893186. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fe0153b-f59a-4826-b98d-bf99cfac4627.json and https://artists.proofprofile.net/proofs/artist/7fe0153b-f59a-4826-b98d-bf99cfac4627.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 0xff79b320a6dc8e36b356be44fe178729697819b99c17248014a8a8484d30e2e5. 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/QZHN61958426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5835a9097cc9994e36c2c76f8d7d4e6a3fb04d3a011d7ed5e73f69157b771d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SE5Q52000174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3c9f94da1db9ed2404e2811573d089235978d98b3b63472bb1bf6924708f32. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/SE5Q52000761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1495526be2b37d623fb368a1e841fdec68b78252070e3361c9de8e0824c0d5d. 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/SE5Q52002313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b0c4c7a56af30960e92c218093afa6f9672941c35a06533278e07377f7147d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:05:30Z), 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/SE5Q52002892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa10efd88ef42e4640c5a610f4ab16cb1fdc2d143ada9607be1279d348c2e4c7. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/SE5Q52100417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40d07c2d4a2070eb1f8fbdf161d79fa946dc2fd1f3353e2f7c8862fb28296a2. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/SE5Q52100523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9c18ce884236f9fe7b3586c689ac8beaa80b8350638b841ff011527a6c69ab. 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/SE5Q52003988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183ac099f99e13cc814a0b24f9be4548d1db3eae08758ab9ac59e3ac242f1cb7. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/SE5Q52101150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa17697590062bdafb8d8a47bbdb4e502f89a6b9bc647cdff33baa4b43ff88e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/SE5Q52101966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26089358f1d706a8ab1b4c68b206f74fa7b850be73b629d42cb4a7fabffb14c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE5Q52101219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8293e695cd98890fe5252f911a68310786d8ec51d9e0237502322a1ad18fa1e6. 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/SE5Q52100801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c214d78160a61383b464913021b847890c1b824ec901df5c79a7c3177243b0e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SE5Q52102204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe1fde0ae4a2242b59b811af0d173b7db71c5c2226fd97e1a14f10ec20012b2. 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/SE5Q52100844.
Between Love and Hate (Dylan Sitts Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa235f0450f3e22c1fa7101baa4565770f513b27a4b3f853ba1bd525d007b098. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SE5Q52104053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978b3b7b8346b8ac57045c229551783c0276233128b7376e53cbcf8fbd6d1004. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:06:02Z), 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/SE5Q52200273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31be0c16e79e862c055bee724b2c43993a2bd25b20640bc9a403ce67d2eda72. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE5Q52200756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15976b6ea045599559ffd2a0ee4c4af1bc65eb0c8ef8db01825a33d35ce0d0d. 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/SE5Q52201021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d4557a9cc957e99f0ee1fa6972db5ce9f19b75d8ff7bdaa2c85d9bdb6de3d7. 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/SE5Q52202725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fe25cebaaba5a49f8cd4b71b7d333075807951aa4ac7eb0f3783da3a32c70f. 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/SE5Q52202432.