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 0xb7807767e712739728dd14dd0630ea7d3c21b27d79c8135c05a390c9fed14d7d. 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/3fc72dda-bda2-4b22-83e0-90a8edbbf491.json and https://artists.proofprofile.net/proofs/artist/3fc72dda-bda2-4b22-83e0-90a8edbbf491.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 0xb62a12c92b722d45d92218b05e48647b0e08b20d521fd6d6311ba12e7d46155b. 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/QM99V2101108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa50a113b55e1968f1652a0212267d9c5f36c908ec06fd1be5908c68e24f8c61. 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/QZHN42025826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dd7138506ba48a5a23fc7bbd661df6111d74a8fc7e80ca2bf17cb31b14d88f. 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/QZHN42014774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2579d543b413f2bd025e7d1d4c55cf740e88af6db09c778edd81f5520e2702a. 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/QZHN42025827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d829e9edc073aabd9ab01c6252b9c9c25251aa02b0fc74463968fbd50f5979. 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/QZHN42025828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e16f6d4975f1840dbe4136cb4c5407a191455027638fcdfd7c1a817be168877. 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/QZHN42025830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b895748700acbafd7717809ac91f18f250bea477542f5c7dd7ebffc5fb1df7. 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/QZHN42025833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880b894e2be4b1f771d4549708e9be52521529bfe96c94171f2e9c1a450ab7fa. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QM4DW1841762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59bfadcb801aef1faf224479278c82f8401adf4a2f802fcb0c5916e0b236028. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:58:19Z), 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/QM4DW1841763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37e36337e79078a8aeee0635d9a7e870e13995184137dea79772ab5ac4fd69f. 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/QM4DW1841768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa271cf69a3263b82fa8226784a8693c6cb2e70ec5fb68d58b398b0a02ffe9d60. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QM4DW1841764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cb45b3aa35a4feb08fb9046313d3ab887df1c13464c2dc634befee82bebf48. 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/QZPLS2023153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dd7138506ba48a5a23fc7bbd661df6111d74a8fc7e80ca2bf17cb31b14d88f. 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/QZHN42014774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ecf3111f52da4a7eb8631da808943a9efcf4638b3b7c4f56cf9b213e387535. 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/QZDA62087110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34a0440afceaead65ba2dede5ae4ae8f6070d0a86d082898701fd0fe06c071b. 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/TCAEG1982193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f6dbaddbf85416ea6a36f2aa69265261b6efc65183457ce0365c66b7e6cb9f. 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/QZ4JJ1970248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c7987ea33c438d5af15ccab8ac750199d128d14909c700e97831075d50eec7. 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/QZ4JJ1970249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe508216239c5858ac1de5f733d43c65093f1905e93ab40d3ee6358be3eacb55d. 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/QZ4JJ1970250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099b941820e860700db836decd76635efd4a2ff3880b8b5131ee6de4288b49d1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:58:14Z), 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/QZ4JJ1970251.
Minneapolis Vs. St. Paul: This Time It's Personal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc45fe872a9bc1bb6b6cc00b434d918707150c1f4da884f7b9e8b9c3069a965d. 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/QZ4JJ1970252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97d0bb280b8248677cee5ad316eb6c4fa03fbbe845d2fad26a54993bfd08b5e. 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/GBSMU5895451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa537980146b9129f7194d25f3dd026b235dfc9fe174007e6a0c830b19e9fb123. 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/GBSMU5895453.