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 0x397f2329d014822a399fc8e06908623ef49a9c2ebd2162d4389a36afb199b912. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9893cb0c-6020-4586-8251-c4ebca832015.json and https://artists.proofprofile.net/proofs/artist/9893cb0c-6020-4586-8251-c4ebca832015.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0x4d9c58dd798b9767f5629ee5babb1dcc92e16a7515b91620c8a27ea027bdfb99. 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/PL39J2200191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b1f7df051e91bdaf8db0e3e419e09b51845f95de70097978a8442789206d81. 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/PL39J2200197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26977597fb110a223d593e7761bda687c70a90f2568339b129a6dd94979cfdf. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/PL39J2200189.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b696bf3bcab2e43c0e4376e51b1e1bc7eb8b544dbf4daf99630cfcfd79613e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/PL39J2200190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc364a57dfdea7f11f6b76bad4f9a93d6d93f6534c1a4cafb7fd0929185fa1094. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/PL39J2200192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a03f076f67e27b729a6e3d0ba5171b146a8876929ec13ba992e59b530557042. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/PL39J2200193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84af95bf1b2183af6904e5c5848cea85e1e61dd61dda74bb12821f3e7c73713c. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/PL39J2200194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a48947f3346e00edadde7fdc28d1dc2267c14ae2d1cff424a0a94cde804d14f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/PL39J2200195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf576cb8638fdafc8203c24a778c6288adcf07b7da07e3ef24232a998054e420c. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/PL39J2200196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174236712d27d098fb6604b3bfda82edd912ecb963a821bc5306a246280f4ce9. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/PL39J2200198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8037c1c96042cba806286a3c41433b4b48f1882f4be13eaffd32100b1e5e6c2a. 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/PL2802189928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02ee708f875385196d6fcb9e3f6af1ac426f2ed531ac3de3a39a98b61768c30. 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/PL2802189929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cc5e7634616e65527764473b063f3e877240cec2f1ace5c6b8e38d44986c67. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/PL2802189930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585fe6d83a0a2c428fd4ed1fd54d0c6846b4ebed3c6aea750ded574fdc5af365. 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/PL2802189931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77574df85c82d0731327282f4dfd93a22a2c376fceef3cb6be6dd24b3c615c6. 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/PL2802189932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6be564af73a5da87553c6f230691ceedb8842a00437a31d34baa593d95a8634. 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/PL2802189933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f71deaa8deada1dc9281c98b242ac0e81722fe4f1290014034990ec37ad7ca. 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/PL2802189934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66de69b8651ef15b0318f018dd161636e86e8a954655aa6ba12bec0a41674863. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/PL2802189935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904ce294122f779e6d5123538ed04be17e16d226c0fe6c8498377303abe81e32. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/PL2802189936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5224c19219bb96e89fa65902e7c42e89f27b57087959f2cc2ed9c6d51d9c46. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/PL2802189937.
Alpha Theta Delta Sounds for Deep Relax & Sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb90fecf082218ed8e9aa0636e97c82ac3b17a5359f80764897d989a2951d2ac. 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/PL39J2127273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb181146bed26e382cc2e418360bb59be01fd46152425029a5b8c4b4cfbd68903. 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/PL39J2127274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74a12f03d83450b568317e3338ce1abf157525ffdca63eaf24cc0c1a7e143db. 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/PL39J2127275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc37dd5be449cf9a44273fede921bc92f1288478b17c1a2bfe5e4af75e5c2b84. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/PL39J2127276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0ca4a4d2d95d79beb7f509948c46732416a1a45cd71a77eb28437c6b8cee55. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/PL39J2127277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a833311852fdd226c30078364cc96e3c885e7589cdf40a9bbbb986ca42da212. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/PL39J2127279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121b9f9a816ffd5e9e5bda6ac136c5be887e050b6bc15d34c7aa104c59359c89. 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/PL39J2127280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cd180538f4833917525f871fdba49c63266a65c7ff7889550f3f8f8d000c39. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/PL39J2127281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04e043325ee806c2686b4b489972fa350febf8ac32990406fbc96a5746b755d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/PL39J2127282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451d38beb3d4ea953c93019d63b41282d83ca298c5dc80adfbcecd94021c22f4. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/PL39J2127278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80aabc2e700bd7e4a7b14d87f072e7fa89779042a5080fa1ff4f45dc3e6608c. 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/PL39J2127178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f06c85fd2962d417f8c9f0c30621cece482e123cd4a8eb9f617320bae843863. 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/PL39J2127180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35dd22dbb692dd3b0a1ac73588fabbc61c4c22b044bf0a0e6c93c9e40e7298b4. 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/PL39J2127183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113113f87ba6c52071d8a0ade7aa8ab16b169298b19f00482f4aabf28126925d. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/PL39J2127174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb8bec38d2bf1439acae1bb709f20bb9710067ac8c37e6566db0c449b2d63b6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/PL39J2127175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465a5ff691b7413ae66e7af51557c21ee845dd0f71673ca722120aa755bba4ba. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/PL39J2127176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7ca7c991c3705089695284fb501ddff57ddf83c191cf69806708094db635b4. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/PL39J2127177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb801e34b77a7ebfaf6792fd97fe0aa2ec5e76bd6339c8cad74a9c326d74edd85. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/PL39J2127179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33962665027c5bb39c26c860f1903543c834219b59f95056bfb5bc074675ab13. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/PL39J2127181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19ad06b8e87c7d425a78542465615433c10db9e9f5a209d902443501f73b28f. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/PL39J2127182.