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 0x405ad5572c1676221e188a4c2edf02568d0bf030841c0f79c34d0f86d09b6cf2. 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/21d5f61a-27fd-4096-a428-f00c6e71ac31.json and https://artists.proofprofile.net/proofs/artist/21d5f61a-27fd-4096-a428-f00c6e71ac31.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 0xc3772f689d7e2be811a23c8d0e08909af734aa4893627643a82ee72a2552b877. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/ZZOPM2004007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6179b9ccde8a3c046df49b8ab0153883dadc451004b2b257b6a6daf4894e17. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ZZOPM2003713.
Sweet Nothings (feat. Minke) [Strings Redux]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527b62439b61e5826d84feba5ea87941145e945534f4e3edc9e750b2b538c0d9. 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/ZZOPM2107965.
Sweet Nothings (feat. Minke) [Oliver Michael Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e769911bf7e93494db8cad73f3ffd3b0be03573af2c858385c8312de068cb11. 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/ZZOPM2233559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808c8011e6ed68f6436afd82973c7d742aaa426fd6023a50fa6109a4f463227e. 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/ZZOPM2239392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8322d2f44c55ef11ba2562e0d48f45892c4f7ad32c5890511e6d24ace8c3829b. 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/US39N2202649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808c8011e6ed68f6436afd82973c7d742aaa426fd6023a50fa6109a4f463227e. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ZZOPM2239392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa4dee9be6ea07c6968cb2adb3c3a63470250b0bf3d2cf9832332f7a8a299c0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM24S2302135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0321bfa7155e182d0a6daa43cc920604c68a192f106b68396b0b0d10e067ec93. 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/QM24S2304366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee72043f710ac26e0ec1a0ada11e8fbd32d8cb6e6e84cbf7197859d3145dc57. 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/QM24S2305775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b06c5350eca5bfbc3c5a455e7ef17476980c2a029830dacec49ddb568c01a65. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QM24S2306518.
Break (feat. Minke) [Oliver Michael Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad93c378906861adbbc9f8a3cb14d0b03a7c6950c43f70aae66fa4cbffad8f96. 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/US38Y2411832.
Somethin Bout You (feat. Betsy) - Kornél Kovács Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfa3073bc875891e0822ab2d50fb0733b24cc17bca6dd93f4e74cfd3645db46. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US38Y2425989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad93c378906861adbbc9f8a3cb14d0b03a7c6950c43f70aae66fa4cbffad8f96. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/US38Y2411832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c60990f1dac02b57c72223fd6cd1dbb45eeb7c9715d3d6b4b432e77a484452. 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/QMDA62336038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ba93825b0eb753033227b851da83405c5b8462a56fe9125d5a4d2e5a933d82. 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/QMFME2399919.