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 0x562f221670b5bfd55a62017ef00634ecad19d215cb004f335046170c8dd963a2. 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/72c8458a-2618-4d67-812c-b57472e88ae7.json and https://artists.proofprofile.net/proofs/artist/72c8458a-2618-4d67-812c-b57472e88ae7.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 0x0b4ff32249efc96642f4e3fdd3e79f59af5792a4358c7aadf023f9b892a35ba5. 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/QZCE61835853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387d9d05d0e1eee190aa8b6aca3a2c35a84609571cb1a2d4165f96bf498a3db4. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZCE61835854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41efa581a0f4ddedae8eb1cfd6d47cbb45c9f8c878f6667ed4ed049fc334408d. 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/QZCE61835858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a74eac55c1bdab702c5fd7e26618bad211a936da2f2c234138fd2314c879b13. 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/QZHNB1953310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2285df48241e6897bdc5af21796276c41940fb2fd5f5ed5225525b2cd4e62e. 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/QZHNB1953311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448e4e03bf77a53ca208df7cbcc7492859ae97c2cb9598c4f7eb770ed528ad05. 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/US23A1541035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96497e0ab9473f2f7079ce3b2f969890e3646a31d5b33e974d2aa06bcddb7162. 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/US23A1541036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39a6b45cb477db052eb456e5dc2239a0149002301526f52cf7acbae759d04f2. 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/US23A1536216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a71b35fc7ee3e3e40a4b8752353de9dee972b7bf7dbb7c1692537d8126c50e0. 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/US23A1541038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026628093f8968a8077f19b07da368bfe2cd2478b96e3fdcc8afeb3ee7b3606a. 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/US23A1541039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b75181e76f732682d17ca120aed6f95cbdc1b1d880febcd4834dc3354a44f75. 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/US23A1541040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f18ba4bc49e570ceaa25207b73c2defd533d729f01471c5af53c26900baaf10. 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/US23A1541041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff97e037c4be7e0df76aa974595e81ea03ff72455d2b520371d42345bc027dc. 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/US23A1541042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce115563e3a6207ce1086fda0fea9d93774cfa152e1b40a43c4c693ec2045e04. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US23A1541043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f830f9de9b4c85cb2ddc1d2bcd337b41d3dfc5adf4b25e1d1f50299d3df159. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZDA82298508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7073c0746d281d36dcb5686c9d87d4a92be00fe6915121837e64cdf90f6cfdd. 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/QZAKB2322879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d32e8a504d67bea94c83a985565a0513ee7f6b543c495000b0b3b10f5cd299. 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/US23A1542264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d32e8a504d67bea94c83a985565a0513ee7f6b543c495000b0b3b10f5cd299. 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/US23A1542264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e2da952f5ad2cafd351e2a28e61e95219310cae009666f594225db884f79d3. 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/US23A1501449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ba3079adc11dcc941ab6b3dfb4826c696caaa980c5ebc7d482de5808b0396c. 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/QZ2GW1900149.
Wedding Ring (with WANI, Boj, Odunsi (The Engine), Odeal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc134f1f82b93279f473de9561cdbd882478a7a34ffdc6ad05adebc00c26f284b. 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/QM6N22237333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc134f1f82b93279f473de9561cdbd882478a7a34ffdc6ad05adebc00c26f284b. 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/QM6N22237333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56905d3d618bf9c220517d164a8fde0ebb10fbb339c3866f978e6c0e962c9278. 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/QM4TX2081733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bde3773668761fb4ec3142fe4899b2e984b7cd6564bc8a96d4f0417ed00fe4. 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/QM6N22060508.