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 0x55b9c86343ab1d9da7d52ad815334606859e7aa97927701b4498533e999ac889. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c92265a6-1a74-4077-b5c7-06257674c0a9.json and https://artists.proofprofile.net/proofs/artist/c92265a6-1a74-4077-b5c7-06257674c0a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mellow Vibes - Roald Velden Remix - Mixed
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 0xd3e778ff5a573da7af4e4c6008d81c5cf37e10e61b44ba0b5f50d4cfb3968372. 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/US83Z2040154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d71c0130c795b5e6bf24901141ca5df7c2710b36e74b349654a7f312fc2069. 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/US83Z2142563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5368fdb32c4494eb2d9a9deeb9b9694a77b7a69e9e998cbd677970458b07fed0. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/US83Z2142564.
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 0x258503235e7f8f5d49ea045a5d9a86914e89bb38afbd3757458454ecebe93747. 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/US83Z2121308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38d9bb1415689a482193db9b64d8ae83d38e3ff9ce187287e624b55be6676cf. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/US83Z2121307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9c3783a862499b60428a51667dd72c0bffc74ef444456fe4b4805dbaec61e8. 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/US83Z2102672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ebe3ff42c45746f4cac742a663d042069baf20e309dae5f954991899626034. 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/US83Z2028084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfbadbb4005652e5c40e95a5b281801478f20e3b327871b286c2968fd29f8f6. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/US83Z2028082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0235aa975706dac581f36e28b0e634e88925b9b1554c2fc9620e175c038a218a. 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/US83Z2014711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204801da81fb3b53b78ef78baeaa1dbb54b746cd7cc2d3a2bfb80dde9210c693. 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/US83Z2005154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e2d9e68b8dbd0856b3b9b4859c2d3474897117f1d002b2f2b310c40859e09d. 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/US83Z2002640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefe6a5cbd7db4025cb6497c73e9fd09cdf56e9d19564a4ef9f4b6827f6dae76. 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/US83Z1926549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b37ba2e3f36ccdafd55e0deeb271669e52ac06dc494d89abb019de1de446b1d. 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/GBKQU1970758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b06b1b41e57a2f145bcaedae65c1c314a6de714310d0ffe0fbfabd40d5aa28f. 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/US83Z1903296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d30a1289373e75738d39ae65a8806c014ed542e1400f4f2c81918b887fb790a. 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/US83Z2487059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09af73f7c4fcabce8d93007a32792e3325d21f4e6a8a50b863df14a0e84650d. 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/US83Z1915321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90664927f066eee1127f3100e9a017d22a426f02ecec1a2a6c7af840af0b52f. 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/US83Z1915319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7080496a448c8afd8b2a9b27b0c75e3f5c7a83bf6151f88bcd847d5b641cf7. 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/US83Z2008852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf184a8936ffdb85ba69499f25ffab4cc2d5f6a964acb5b927c5ec4f7879b72b. 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/US83Z2008854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579267fdf7e2f20e57a9035cb665562a810929f444ca06bb3e2d90a79c4934d6. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/US83Z2008851.
Sun at the Terrace - Lumidelic Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed29f39e5f825ee2d9bc4e4441b948bf508ffbe4dedc61237655b0bd84021942. 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/US83Z2120364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de4b0822c2a5ce0404f67f2017775c5e730ca474db129f0777618b43466b5b3. 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/US83Z2144511.
Aquamarina - Stoby & Sonia Scott Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34076e0e6a3dbac203c046b267ab16c542e0487300ceb144560227f9437d1017. 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/US83Z2147306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff95b65e576c86fa02ff6137f7874a0860a1de6e36d141ef7e1bdccdb9634bc6. 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/US83Z2050464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143f3279d03ba91da2ffaa97dcf2f848849b8f6c54a07dde6d141ac33077cf9b. 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/US83Z2026366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955430442bdb3eda08e9bd3525f6003587303291d9c25538de8181c959bbe44e. 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/US83Z2026362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e8aa042e7177831b7ccf3ea7a5fd3b0f524e0cf31d6e677b1cd1ff896e10ad. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US83Z2026361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4b89c131a80070477e04a20ab0ed064a8dc0921879fed4f3f16142fbcf147e. 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/UKR6V2280147.