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 0x5c01cc5a7f513761d61b58bca44f6ab61403ffae2c90058d93b9313b2f3d5256. 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/8d5db0c9-9bb2-48c1-b941-baa4636ae8f5.json and https://artists.proofprofile.net/proofs/artist/8d5db0c9-9bb2-48c1-b941-baa4636ae8f5.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 0x90658bfa1e0f7bc67b7ecaa1024c3f5a908fdcdf841ecc1563b2fa0afe84c0b1. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/TCADN1825773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe427e6f079438966ccee9b11869afebe3c29b696118debee5629906c069faff8. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/TCADM1869367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8948538ddfa057318ab189ec0382975c966737786036355d94523b443cde5fd5. 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/QZES61997470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd1a89cc0dbaf17285dcdd1f5747e7bb312fca422ca73e0fdca2aa2c8ab530b. 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/QZMEP2019054.
Rhythm of the Road (Scenic Route Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef98a2b5503c4054c9fb52e09f9cea35f72bcf30aa12ddecf9ddede5731c50d. 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/QZFZ22266868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2e1205b2c1cb0d97c235a7783c1c9add1d73ac06c6d2f410d3c60c7dd5a837. 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/QZK6N2350475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df05fd600ffe45379a4669ef05a53179b08671a0580c4c4363c7612e56e96ca. 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/QZMER2342195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f914c73d91291f4babc95274908a0fc23932843c6dbe38af2a73f6ee97db23. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZMER2342198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23d143574e16ebe07e8f014625e52b6027d40a38eef3854418f7dcab63d55c0. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:26:32Z), 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/QZMER2342200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c708e3438593913a42b452077831eff61851032239b480d20a8e1d169dffa7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWFQ2341868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3992389954a1bf67e062395909da8e1d97fcb3a75d1947dc991d013c79e0f2e. 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/QZES82430119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd02fe45d0b85ffae370229f864939ba847f3dbc9d6e95543750191ec08f783. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZK6L2421311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05f833c4554db0fc81952e4342425b64570bc8e948519b2325dbf2386f9f3c3. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZTBB2454483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c708e3438593913a42b452077831eff61851032239b480d20a8e1d169dffa7. 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/QZWFQ2341868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0992678badfee1e0cf6e567a83229cca2472a0af46dae3a4fd0e2d94332432b9. 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/QZHNC2519573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94dce96c650a822a2a1f4e71b9a5efe0e8632aa73616366a1ad937d38d1c29ed. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZHNC2519575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc202acb75d710552b0679df09b066a788bbdcd5718b4ee69bbd080b75824b26f. 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/QZTB72560394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3815a7fecac73d6248e5f25a8f255e6f83ab254fdf0dbe9eef5b6bce7b23a2f6. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:20:51Z), 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/QZTB72560395.