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 0xce740c1527bdb0e5c3f6b52372a12669ae9e29a9713360392a121e21ab359f4a. 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/ebd66b09-0188-4900-ae8c-b51b835eaa75.json and https://artists.proofprofile.net/proofs/artist/ebd66b09-0188-4900-ae8c-b51b835eaa75.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 0x1d143bdf55407a56e6627aed855dacb58974b81026ea290119237c6fb16cf43e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTBD2457774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e07e091985eccd6d2927e361d840fe7c3bf83a76fac004fc531ba300dd60437. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTBD2457775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be3c1769d194a5d4dc465599d50c2a519e80532c071ff779aeee4f1e43b7e9b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:47:24Z), 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/QZTBD2457778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe57e8cf44ea5a73932fa5fc188d47b8489b54877e9e90078676fa4aee95ff0. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZTBD2457779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff07e4c5d812c4ec478f6f713d8eb18580eec485da6950cacc8c78369e6c2ee. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTBD2457780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a29cfd41efb6ca8681898b1d2a13f1e0f23a789c6f0034737c5394a26de9f0f. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), 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/QZTBD2457781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd81047f5b95a3a5ebb31cfa30270170d8f9199bfe4013cf6d5c784f5c4312c1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTBD2457782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f149921c1a1e17be791735bd3ff4a257afece2b195318d94476702264f6d895. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFV2452567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5676e4102e87a8eab2f86601afcb4c7e104d3ecc05de7d0430f6162159436a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:30:59Z), 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/QZK6M2597522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cdc9d7ad71081f5fdf6ce6e0a98cb9d076cb93fef61d255f579dc855902a4f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZK6M2597523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98e8062bcef33b3a883ae00f6118c65cebc6a74fca8ff59bb49d950e3e33e07. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:28:16Z), 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/QZK6M2597524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f50d43691d3c8450111e7d8cdb748271eba9af9f293c3dbb816182c04beefb. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:19:51Z), 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/QZK6M2597525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a84774510cddd4e1e205ddd247984bbd741284a8aa3aaecb0095eca40e4efa. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZK6M2597527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d44ed96d5c25fef001ebbbdcb808c2c21cb59db8b3f2396710c0e74f557a919. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6G2528507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f11933e406a9d7dd96a84448d10844374fff242d6cd9b9f6fe2bd8e9ffef18. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZK6G2528508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457d2b29b1d26873ddc6e051160fea171c60f308d68152d08ea48e55b5ccfc75. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QZK6G2528510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73b18d5d7e7b8982f74a80223729cca550a7cf75bfd8023cf9442bcc7097666. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QZK6G2528511.
Harmonies for Meditation: Soothing Mindful Tunes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94dc1957c296f1b62ec25ab9293d02115e04da5f3d41aa835d21e7c38f720b3. 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/QZZEC2437267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb893c6c603f1bda5429b563544d15bae864fca4a343324d13b992e2331460b9c. 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/QZZEC2437282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cb0d9713c0fde98c71c03c0b1e622ad4a277d187cf1b0f663ac872c6fefcc5. 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/QZZEC2437330.