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 0x59fdade3c35c0cfc1acd29de7ebd6f624e166700c7e5ebf28cd96e0619837b71. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9efa8b24-26ca-45ef-899e-fdc20d49a72b.json and https://artists.proofprofile.net/proofs/artist/9efa8b24-26ca-45ef-899e-fdc20d49a72b.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 0xf45f057b9adf6b39d02a433ee004c98711c73742ab40a903be84780c5da537ab. 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/US83Z2341997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a88aea1073f420b55178bad3ea43be44296c559d6954e89e692718dc134b01. 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/US83Z2231105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e79c83e929b2dec7fe5a17d8f87671fab012738f8d2cd13445086d456202b1d. 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/US83Z2231975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e0f7cbccdd9b34154197a72a791d1ef8234642dd08540304c5176fd313db49. 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/US83Z2216320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e79c83e929b2dec7fe5a17d8f87671fab012738f8d2cd13445086d456202b1d. 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/US83Z2231975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc427542cdef7e30610a39d3f26f8e0791c5c4291a659ae7061f2e54e3fff5a7d. 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/US83Z2237802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba79cb1d7db43b9e04760e56852130492d5045c2e43a7e1fe3cd4c82efe313d. 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/US83Z2212375.
Esta Noches - Cafe De Anatolia & Rialians on Earth Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbefe4ea6e2f110f04d7b3a030c0ea50e8d7a86f8684a6ca0ed0619ffdd2b5d7. 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/US83Z2200914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb423b59fc34816808425ab904da8feb9be3ab02af007ca235cd21cabfcfa3dc3. 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/US83Z2207172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c533d303e8d1b53139ba91caccbe4ecaed5fff1a3aab9086f3a2c1c99a1683. 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/US83Z2216568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a3931a58fdcf218157388bc7625a33a83e069a2ba2b5857dae32875eda2068. 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/DEH742004687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81332ebd6a14a8e4cd83db90ef0fba2e655a455ceef82c704f62b9a23a01451. 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/US83Z2219081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00621ae3595a8172801cfd5f46bccd79dd1df53982497eaf7f3544c0a22c65fe. 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/US83Z2225566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd47d2c6eddbc4c201b34ad32ff5cb53f7cebd1cf1624326af7b00c725efae9. 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/US83Z2215516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fe0e820951ef895948659915ae036bb506ab6a839d808699556310170e1f6c. 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/US83Z2219083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4910529cae634e3f6fd9940c922056e26c6d20271de162b2ca6eaaeced0b7d. 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/US83Z2230307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa76d0235cb3a5ed57a686ace89843dd64905a331f57fc19c7b69d1ccdd9d6b. 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/US83Z2231104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f40964868242364531659492ade6d6e197ce700feba293a773c4bee6433e23. 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/US83Z2213694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48706761c2a6aa8e61c82e24bb4d53279889f786b531cc117c5a8b4005f76640. 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/US83Z2213695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c6fef7580f83978e1747148aa8e907d5d0e38d9d662e1998f6f2dce4ecfbc0. 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/US83Z2213697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f40964868242364531659492ade6d6e197ce700feba293a773c4bee6433e23. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/US83Z2213694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9475c6aaa8f893bef4d42936f725aac3f7d78c31dc80d0d2197ec97e48682a8. 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/DEH742001184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe810e23ca509903d9b1fdb5439dd8baa873350bd5bcfbb86d44d915264c0a670. 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/US83Z2490399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c5b3e94d8bd45b02e48a00b8a72c3f00bf0376c06dcf5ab4d91ec9391485cb. 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/US83Z2476618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301935b29fb44e44ba51961162b3336853181527f98f601b5574dc1bb18f4444. 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/US83Z2490419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3fc7cc13731904ad8d55d52e3905448f52ea40ae61f94ccc43a10d923cb9bf. 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/US83Z2475195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b61eaf144ff690b32b9b69cb0fd2aa83db283c48b6dceaf05a663be0bfd6c7. 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/US83Z2480243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0887f62c045542d165e6b48fcc884be87863dccdb0eb35eec0ee9b4940d99e70. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:01:03Z), 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/US83Z2496054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a83783385c683c03632c51f1b623ebf30cba595916b5d7b6ba9d6680be35a0d. 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/US83Z2213690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99209dfbbeb590445e7bc86406b60b57b5d4c622ecc801f30903ce99b8be63ed. 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/US83Z2213626.
Demedin Mi? - Billy Esteban Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9826c60c494c0711ec9a4faaa55a86b1d8e031b5985b1b77be899c317656f2. 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/US83Z2121216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617544b2b7edfc52362a35c70b88ee41872cf623c0c1038bea231d62967f448f. 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/US83Z2231107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa76d0235cb3a5ed57a686ace89843dd64905a331f57fc19c7b69d1ccdd9d6b. 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/US83Z2231104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a88aea1073f420b55178bad3ea43be44296c559d6954e89e692718dc134b01. 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/US83Z2231105.
Dle Yaman - Ethno World & Arabic DJ Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb98a8bdacd0ec1260039bb200cfe8d966fcb0b098b1e5e209cbd6e2150e74b1. 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/US83Z2231106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2042894931d6c6be68562375e157181f621b73043081f708a8a8f3e75dac9b33. 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/DEH742153400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99209dfbbeb590445e7bc86406b60b57b5d4c622ecc801f30903ce99b8be63ed. 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/US83Z2213626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e76cbd7d97278348aef8a96fbf8239d42f680a9f2cf3432a7b9bbb82799628b. 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/CAOOX2200040.