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 0x5a51760548407da4f2015d1efd8678e09330c278db0d2940aaf1de71972981d2. 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/51b82508-1d7c-4c4b-ad2e-8aeab086dcea.json and https://artists.proofprofile.net/proofs/artist/51b82508-1d7c-4c4b-ad2e-8aeab086dcea.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 0x50ac13ecd8d252eb442b611037656cbfd142d8606f4fae6cc477ff939d3d73f8. 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/US25X2400321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0414bfb5c3d6f9e782feb917e84e11af342835ce9c4144b67bc8549ad7412d0. 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/US25X2400324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139ecb45c3b7071b2d1ffec5f47f448e654446ba67093966bbd4c2aaac4ecd0a. 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/US25X2400325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc211fe3c5f9e12e60dda542270660af214c145e0e043fb683b06f0bba09f0d. 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/US25X2400326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f39d9560ff8d5abf9c595475f511c0eab20177ce789959375c8fbd6cbbc9fd6. 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/US25X2400328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de4d7d04910838039616baf1538f6279281371fe9e1c7d3a4de32d65c4634ba. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US25X2400329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7062bf4b523699852926ef6fb5fcdf141812d423a8a242f04c26f5bdf070f9e9. 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/US25X2400333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64aa69a681661538968a6177d5f1cbbe3c028b579a0117765eef34db4262bc6c. 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/US25X2400335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d9383ec11465c2bd2fea4722d43113634e97edf956e7d7cfbc8edfaeedda6e. 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/US25X2400339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea349da4d56b368ec11805581ff6402b5b5b5228e449601ce3b57f5abf992b84. 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/US25X2400340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4926229fc45284788c78a97adb3d76dbb831c6f9760b2f9395bf024bd05a86bb. 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/US25X2400341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a63deabd96d6377f3ca36a620e8d19475a50dbbee059746a17a219763e7628. 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/US25X2400344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d17b5c5bcc0b39f03f43ca3efc1c4635f1012aef402a7ea8f9c99ffc0f420f. 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/US25X2400345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd86e208b70fa89a8c46991d0e724320aedb8753871942e8ae9259529034e46. 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/US25X2400346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b9dc25f9590725f18c099652a2f64eae8a9ce3187ff0c2597a76032cdebe72. 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/US25X2400348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e497359edc2ce08f55126275ea2ed557a94525f98c9f079ee92c1d9652040b4. 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/US25X2400349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67d7bbb9952e541f2f77cf774ba17eaf01e098ade446175b2fb51b47721e70f. 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/US25X2400357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7eaf878df305529096ff1431f7f68485d79a731242da393edf9fe1e291c5259. 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/US25X2400358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba97d7f135d9c0221a7994b7b522d43dca2f23f6eeab844423508b53808b0e6. 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/US25X2400363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e31e5e677d5a51c93f5422506e61e58a778f1561dd4f4bd694f7cd2cdf98e98. 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/US25X2400367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efb85582e4127b969e2e8af2b4e3c8e0b8b7d96e0449537906a670aa73325ec. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/US25X2400319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4525fa7ea2a348aae3278d70858c1f15b2d9c71a0aa4100c6ee3da029e53a33a. 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/US25X2105738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d9292a5b77c0875778775ce4798ffc54f5beadbf652e3ab074eeccc4df2bc3. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/US25X2105740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fcc542a903a5dc9cd93b60ef7d6b468097c565e62b2a9ec01283a4752e899e. 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/US25X2105741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389224560cb99369c26c771c7794a4c1ef25032a2c6ed4047472b0729e02a93b. 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/US25X2105742.
Anna (Kelvin T, Teya Logos & DJ Ditto Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c28ef99ada285a40d564d5196220a98d9905b292e1ffb5856cf2931caf7c9a5. 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/US25X2105744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b09e789c449f9e298f2506b75ce7dc9bfcc36241a07e8f766bce63a7319d26. 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/US25X2000793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9933f1f35c98408d4bbdca573c08fea47257a6d39e9fed727ac99db375fe1586. 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/US25X2000794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6684ecfe4fca5e3cd3f71f7bd62a66ac6ed8100deab88c5965cf3a00c8d04b62. 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/US25X2000795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3d9ab4bc767eeb9ce74644e2f04ebf4eadd199f3405ce5507d4252062d22ab. 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/US25X2000796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf3d8b8208b0d33d351b35b87da8e0b616b212d49b111bb272a020205c3312e. 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/US25X2000797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cba1fdfff1422fc57972afd96d7840881235a4ddc372270525a1e02f0c08b2. 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/US25X2000798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cff9d1ce297a1b3f72e751e5a48832bbc0b11be06eb6184ae73ea128141375. 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/US25X2000799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bce8853ea4e323c2c0d49e848e8b851d3afb6df59ffa3f48722550683bf4d6. 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/US25X2400438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc211fe3c5f9e12e60dda542270660af214c145e0e043fb683b06f0bba09f0d. 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/US25X2400326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c162d820448a17527e55e46d8f38ec1d7b268aa50eee54d9b3563c42b727c3b. 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/US25X2400225.