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 0xaeb8ed0df567717530d8c0fd7efb0e13ca79d6ff94c6dc451b7d4ce05bc83a66. 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/9cf98109-ecb5-4ad2-aa45-7c28f1546e2e.json and https://artists.proofprofile.net/proofs/artist/9cf98109-ecb5-4ad2-aa45-7c28f1546e2e.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 0x4ed682db1727249431b575b35b3a34aa5a7200c4e96b07d8054a9a7ba91915fd. 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/NLCK41500281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd2cbb07f479964f4a4a1b4fb1c802f7becd7ea9cd00ce7190711ac4ad704a1. 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/NLCK41043706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6f9022c4d13470170ccc3e9f2b2f2e416529746df5574f73358d4ef3fa4adb. 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/NLCK41043707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71eaeb555dc273074d4b514a5168ab2dff6e6c9960db0cde027b3d6deb8bccae. 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/NLCK42418744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2885c7c8da53af7a7fab884392f5a37dbab2432367e87fa7234a9014ce9da4. 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/NLCK42418745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b4b7dfccb739df15b85d0a9350d1197279606154bdb0ab07b1f263456106e8. 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/NLCK42418747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62813c9b285b273d4e8e46dce28e3b1d3b71489b034046ddce8a3ad9ed677ab. 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/NLCK42418748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d08792e23eaa75c1eb0128de66464005ba0a3e9d20200716668db7944fa7a82. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/NLCK42418751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155e9dabf69ea3153a0c78c5c6578ad8b66647aff2526969e2a69c8aedaaf6e1. 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/NLCK42418752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796e3fed23c282ebbbe6bce80b8dbca8e66440e9bed02bdae2e3f0fbbd5c77cb. 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/NLCK42418753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224e2f7ffebd539002427d8c7c8ff2ab91662b52545374ceaa5535eeb4e6f993. 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/NLCK42418754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e0e5d3899228503f4c0e148c16434fae310cc5a03a4cfa50e7e8056060780d. 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/NLCK42418756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582a26d0cdf2e1df1c5ca729db747f882ee22bd726a57cd0cf23fdf4eae6d5e9. 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/UKACT2420358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b03f1c95a70fde5802d7ea2138b42f005cf832f7ef9e0c752bc26d045fe9e8c. 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/UKACT2420301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96e5a68006f6ef7717eb7feb66a2f7453b14654063621c51712057463b1a946. 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/UKACT2420360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9a436c7e4cb18e017e9705499b940dcd7f78a520985f03a82b7397864f456c. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/UKACT2420359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce2c5be5a37452b8badc1d4f8bf018c2b2bae1ad11d266efccaf7b747635b2c. 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/NLCK42210254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9eb72e5182512fde3fe5400a6721311df40cc843adbe3cc8d07c76e0ea8ba23. 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/NLCK41063685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf6289ae6692de755c6487bdcffaa14840ef3f23fa1d327895ca9cdd0f844cb. 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/NLCK41052718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28958ac8603128032f20c80aeff6510cf9def44bf5ffaa754ca5db0966d95dea. 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/UKACT2520205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e627fbce98ca68138aed4fb96926df21e498d68872098a4e2d58816db201e5. 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/CA5KR2501347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd174d6901817c75adb9b21ad3a428c28d3237d544a0ede60bf2f0126d31b6bdd. 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/CA5KR2501348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5f635b5cac05cf4e8fca9cd545e9b525261f42f13d2a415683965288d8c99c. 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/NLCK42416035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b03f1c95a70fde5802d7ea2138b42f005cf832f7ef9e0c752bc26d045fe9e8c. 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/UKACT2420301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e58c6cef525c3965bf66eead6dbcf3cb8893abcdb164471dcd11ee5f4b365d3. 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/NLCK42341452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe9530b2c30d1c60d1571db9538bd4757d3631f97f069db4a56a15c44ac636d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLCK42341454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fac1c5b6764671140932b18dd53404f7abef88370475cb75307267924c6e2eb. 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/NLCK42341455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4fdff22284dc570750ee479f08e7b94643461721e74a6c463a60ab6a356464. 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/CA5KR2380330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619369a54807e2edee0baaa0215025f230808e9bb6437d71c36b6a2c05eb11a8. 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/NLCK42224992.
Choosing For You (Forbidden Society Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc665087aabe2b53e07d4a999c617209219e0d18449909664425747e8c87fdc31. 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/NLCK42217301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c732fea5f85002be3c3a10a5ab6a0c61cf7469b04c224186f550ed59e659ba. 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/NLCK42210247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016fb91edabb068ecbc0a49ee54e212802573746998ead76a749686970938111. 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/NLCK41094225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3685f8ec669a2b1811d1967b9dc224070f4a8a2e3933cbe55f639ec585efaadb. 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/NLCK41087777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d576f51d9337333ba41b2b604861a6b7e8789005b2064d9d7a8ae6e2d48407. 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/NLCK41085490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaab01ed5b5d2c9280e745378a4ea3d9187e34963ca02f1a9723021e2c7fd68d. 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/NLCK41081580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc197aac63883c8a859a7ea37ee7256c170fc6e817fd8698200f3ac55d14df8. 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/NLCK41074998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3013e7bccf699d42400a09d118236f03b3ab803e85bbb479949fb2348d0e0aa7. 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/UKACT2031166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8f1a01c8df727a47f226e76243d70964ef37ca844bde41ba3e9fbf060c7b7a. 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/NLCK41056411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cf294e991b3fce9f9d099fd9029abb4aff732ce6307ecbd304b3c92ed5b0a1. 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/NLCK41054157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8392f82bbd7fd2b8f895fcb817cf11cfd87535719ad56f89fdc66172c834ea1a. 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/NLCK41054158.