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 0x1c16f6412ddbe7fa5ea5450708387a8a91fc57ee6ab732a5e29638b775c06bc3. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83003cd4-b694-47af-b5fd-0e0515abc421.json and https://artists.proofprofile.net/proofs/artist/83003cd4-b694-47af-b5fd-0e0515abc421.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 0x03a7527ce71cb4dbe73c67cd08af8cbb4cccb0dced4e715691df48ed03203117. 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/QZ8XS1911231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9a738e9d110dc8c354add67557cfc3579f1dd5801ad0c00ebb66c6ee9fd06c. 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/QZ8BS1911233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7ad5b021c82fa482ae5552079dddd1eb94b16fb89378fcfc5682f72faae2be. 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/QZ8XS1911235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393227e0e9df5df9a2b86370317e223633a8cbf8d221989d7707f019f210c5a6. 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/QZ8SX1911237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20465739ffb660225dfa069de2fe87d7b19711fd8404a432fe71835681be872. 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/QZ8XS1911239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970e4b29c0d0becff763e2a4f5ccee6af58b9f1d1a3c69327ed6b18a4e1522f3. 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/QZ8XS1911240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1b2ac3832754285fc9ecb237ba2a46745864390446f1cf9ee3073f42f1781a. 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/ZAY592200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dca639844e1f33414f1446a7edda2dab0f9d7457bcedfac96c1e3455e19ec67. 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/ZAA3C1600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4270a4ba72c9bf800c3740256a0ad7d3d0a999dfcc9a7f7a4f1b6b7ca65c7072. 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/ZA8M81600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1304428d20200facc80008e6d8aec3eaf10cd81c60083918e91667096e34bc0c. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/ZA8M81600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9e36a0b0441c774c66d6791bfab9d272aee425c38eb15aaa2e0d293f9ad81c. 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/ZA8M81600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fd475c7546a04e2837139adc3b240c03c5f5edb2bb2abfbf86c5c37c807f94. 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/ZA8M81600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c4e0518e5f31ab82ec35e2831a9a8483fe819b35dca4172a45207e490b4688. 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/ZAW781500283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd81daaebb85a9e5191fd7e991f935ed018c8ba12781a2ea2c56ae4daab2479. 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/ZA8M81600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27842377a849c3461507c817b829a099b5c679159ea99f0624a9f8a5cda50dfc. 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/ZA8O01500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f5a4d8e13bfcd8cadc5b704a8ea4808a401693d32c01883f4a460544ba48f7. 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/ZAG931200365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6cec6d1453f2793d4f9ef1cf654d98119f5866253d8bf83c4644ff83e8f4f5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ZAG931200367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afa32f6966a31e6adc65b8e8971dd6d7b8bfa919c58ac14969ef7eee3c2c0bd. 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/ZAY592200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb85dac1e975e60091a8375eb149aca42a533268d913e623aa7616ce076adba6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ZAY592200062.
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 0x23d0130f3f038af315d91ce98074fe72276476e3ffe7663f6e3273b54677e196. 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/TCAFI2142373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e89c176c534440d96f09945b6d198e26f06959186403aa5de7d7a9ee7041f68. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/TCAFI2142690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af0d7f1019cd2acc6643979b1a62bd6b651159bf54956c63a4b7ed42cc3056a. 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/TCAEH1994302.
Moonification 3: Niggaz from Outer Space
Always On My Grind (feat. YBE & Playdevilee)