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 0xd804f084d4a81e505ddd40c460b967065b8af18e9d97a4fe676a22a7bb7eaef0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84f6e06a-4f4d-4c61-8e74-73d7611beba1.json and https://artists.proofprofile.net/proofs/artist/84f6e06a-4f4d-4c61-8e74-73d7611beba1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Srb Separation Confirmed (The Blue Print)
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 0x5231afff963397283d86fc870e93cad71d6d36ef238131573ee26ccc05456107. 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/TCADI1794727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79d87c5bb26d8b8d455ae73a48f8107c4a3861b2b2ae6a0af35c4bc18a7f3a7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCADK1892526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e0859c9ec0402c2ce0b97b721411e8e17f0c2107c0427d8bc42d3342eb879b. 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/TCADK1892528.
Keep It Trill (feat. P Nut, Nana Dams & Papi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730d1e9105009ef7375906d8478410094be34387af6776a3b667b2577cc439fc. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/TCADK1892547.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15880d9df7b347db11e951e8cefd608019e0fb136cf90b0d9aa93cb15e0ea25. 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/GB5P52000388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dc5810becec0ba26ca27cc1ae8761c6558120166746d23a538bb3c1f456566. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITH152400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdf176752cbbb605885089d240432cf103e34d24712d93a0bab927e496ae509. 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/QZDA52355842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7629a7ee5638f7461c6de813ba54c0574398625da6e8492c3cd43c9413c08a66. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZDA52355844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda16011a6991df8afea654773a40ebcf3a3588a31db34a14d3557261aed957cf. 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/QZDA52355845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0755db2c0af198f7d8c8fd082e307cd2c655defa869c5741ba49d8644d6b83e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZDA52355846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62febd730ec6081c2a098b9b83ed63ecbce75d15fbdafe8fcfbb32344282696e. 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/QZDA52355847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a1b4c46b96f3c62c87a936489edfc1bf9526da7fef2e5ef6cbb7687239ef01. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZDA52355848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee12dd879affcdd20bfbd897233eadd2d20d956422bafe4e41d0e8e06d2ce48c. 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/QZDA52355849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b5bdaec79d2cae288cb7e637e074ae3a7b2ba5af08340b964ec0e446041cf3. 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/TCADA1752640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffce99b47eea231054b1aa32be4d16ef29aae874f2aa6f315f3ad1620d04f7d5. 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/TCADA1752641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef110964555523078c07630a9a2a12a284aae8c8e974bb711430541bb7de47b. 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/TCADA1752645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391150b82736c6e2ae32769dcc8272e64ae935175850f202351eecad6b062d9c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCADA1752647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd809c9dcc57a66f7c1e059cdfcf2bb62375814a5b719cb267af8743810f26ab9. 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/TCADA1752649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4118673511b2e5e8042d0dc96dbb6c7c6a8b9e433cdb2675f83a96183a0b5b72. 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/TCADH1724167.