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 0x167f3f6c931462d77df52fca2e3417242d53c2002d878be9bb88a81c0d124f4a. 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/65ac2af2-6d3b-4e87-ab2d-5bd2c6a24cd7.json and https://artists.proofprofile.net/proofs/artist/65ac2af2-6d3b-4e87-ab2d-5bd2c6a24cd7.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 0x64428aa6824da01dd41b9d98b422604eb00214458506cc4e45a208a9e52b0a64. 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/HUA612401059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf0c72f584d11e60eb5ab2e23076f1e3f55356fb896b96d4f50e8a74a8fc0f7. 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/HUA612401061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9372a6779cf299f2b585e848f28e2f5f1af924e9f2afd7c85befac1443acc8ff. 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/HUA612401062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf814f92e4bf2f165cc70d039fa26d11cb15cd001de6aefb090b0cfe1b259253f. 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/HUA612401063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947458dcdeca545d18666aa41cbe15c68d442a907460938b589cfccfc7285691. 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/HUA612401064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5910829c77447a1ee7c7dc4331f78c7e1c00532bdab7aa4021c49d691b23130. 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/HUA612401066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf807671fc728bedb0a2d4ba4b9975ed360fa8a011e022d43d68a453daee23c. 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/HUA612401067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9615e8596d2961623c7cf05768cb647b767ffe0476087bfd7a1441045f0656a8. 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/HUA612401068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b88663b3b12e887149540a2dd902acd219a5c84e693c991163435f875c53d2. 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/HUA612401069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca43ff9a9dd409e781328f000a005d8884cdbe05a177f1753a914ce3198f055. 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/HUA612401791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d34b488d419c76fe517c69d4e4d86d0fec22e19f0424529004990bc48e06476. 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/HUA612401790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c1776b8fecbd49f143c89ab7a2c182a22c9587a3ba975cd4ab2fdeb80cba97. 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/HUA612401723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c17be148af488823cc56f709252cd34f8bab17337c7e598e6cfaf30d95a9156. 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/HUA612400705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ae6b40ded5269f6517906bb8d99eb5d798ef5f5d4814792d0f010d85bc4e03. 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/HUB002300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001555a4d36bc790fd18436241a1899bb053f89a6b721c042dc43e3cd9415ae3. 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/HUB002300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f44693a20ab52a7546f2076ac8848d8ebc161c6effc728264be12eead64767. 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/HUA612202869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddd4d5f138be56a11272c18c679554067fde956b3de69633f175bca6c2928ee. 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/HUB002300005.
NAPIDALOK 2 (KÉPZELD MAGAD! A DUETTALBUM)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3b62d63a8bf749c0f5f10f6f7ec8a0748cd60b88124ba7c4ae7e86f7a35cc1. 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/HUA612301760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4efb57847e0ff50ebd01a1ad57a96ca07e5964c98330e5c8f0149beaca6590. 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/HUA612301100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d42e9e583baf2e7631e66ab2f840408e07358aa12a1fcf2cfc219dc025dff70. 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/HUA612103313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849b1c1cd374043a64e5a6111613a1d283a9a530ce2410c5f283d7d183874ac2. 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/HUA612103316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5353f06625cd1536277dc17e7433c32bd924e886ac71783ba39fb2d9be4f8d. 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/HUA612103318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2423cd6b78741b3a14932f8cea62653f172056baf7ab3a99ce08ebe4b9bcd58. 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/HUA612103321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71e58f855c2ad1532429d8502922906572f26492fbdc244d10017e01ab37608. 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/HUA612103322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c2149cd7dd6f6f0413cee5c9065935364dc216b11ecfbd74b43751abe9f32d. 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/HUA612103323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81fdaf2553e2aa75d69e4c3cfc1c7b11d0153e990dca9337e0bafcd9baf0a1d. 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/HUA612022947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2c042a07ccf860d7c762ee5edd84b2235cec0b6d0475759ba377dc1bf0a131. 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/HUA612022953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d06f43671304ce07cb2fe5307e7576281abc980fb8a407b169a476b2a62313b. 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/HUA612022954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762d059e9c76251f672a6990951e60be2cb1c11c102d7a3192b0c5e4112ff486. 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/HUA612302064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec23b0a0a96407d367e5ed4cd1b7aaae4f135b67d9799bd202808f9ffb941756. 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/HUMAG2300268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbc4e6c935620814335e2abf64428bed9ab51922d01dc03d7b069615c732e6e. 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/HUA611701721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ae6b40ded5269f6517906bb8d99eb5d798ef5f5d4814792d0f010d85bc4e03. 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/HUB002300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a15d302d541d457caef9d0873325f0b5429848180f58964656c4b83632b8ee2. 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/HUBTT2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddd4d5f138be56a11272c18c679554067fde956b3de69633f175bca6c2928ee. 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/HUB002300005.