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 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 0x467f0bbed2ffd93e5cdb5a9312b3e54cc9aad53d74ca562881267b5af8ba64fe. 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/4dfbfd96-cee8-4f11-965b-4367af800701.json and https://artists.proofprofile.net/proofs/artist/4dfbfd96-cee8-4f11-965b-4367af800701.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 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 0x72db419b28e383fd32920c953f62e1cfcae6f0b95f773d325531b064a24ca22f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:49:32Z), 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/US7MW0900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5b16cccded79bdade11ff69e7be5c9f8d40d182598658eec85f051d185a6d3. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/US7MW0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a117b959620406cfba6bc5f91a5d77b1910f5d225a21d6114edfb1dfa27249b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US7MW0900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ebb9cfad5473c08ab2df039d6008daec4270907fef6c3dc2584b800ce5e007. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/US7MW0900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba70c69bcbd507002f139037355b6d75c876a302304dae0943e757b1092c49e1. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/US7MW0900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34853c7ef2d5bb33e513b44bdf018a510901d9798a242acc735f5f9d1eb4360c. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/US7MW0900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6667364a55d050076210a1a3458bbf0ffbcbf0f3332e93da9d66ecd708ec449e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:45:55Z), 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/US7MW0900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a17681e81fa8b548174bcba84d8c4df0dfaa0a0b63693a92851806b98c3ada. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US7MW0900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187373741761b164f398b3154c6e830c26348ff35958fd88a7ea83d3a9efc02b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US7MW1100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f08bffd74c82652e288589125d0780e815c763e148ca6db67c5c769cf00e23. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/US7MW1100059.
Dos Amigos (with Gilberto Santa Rosa) - Bachata Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76eb0b3b40fe1096514eeb6922163d149a87a3f42e23e0a09e185700dbb63f5f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/US7MW1100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0663292d83020e0e1c5ec5f0904c28eb358ce580612397fff9abb4ff0ba77ba8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USUM71405042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b480b24049d2c415396e586484ed2ef75ba99cb5be79d2ebde36614a9a8111. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USUM71400986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa837c1e74f42be1d2290474a2db575548a4f3459aecf8ed8db73720a57be2a23. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USUM71400988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95744a940e5be6a6490876df2dccadb357e85f557fd1c59c08edf74b599c4221. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/USUM71400995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfed5689af5d857737f4731cd36ac16175099be3159f63eb733f6c999262cae. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USUM71405043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e5132e7f7824b3e7cabe5dcacaeff17d79170ea588ca95212b1f7b5e6543bb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71517682.
With Arms Wide Open (From “The Passion: New Orleans” Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb426546895ce7ac1c818ce189d3dbc6528b42b914593d6fd23f795963d146815. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USUM71604673.
With Arms Wide Open (Spanish Version/From “The Passion: New Orleans” Television Soundtrack)
Pa Que Me Invitan - Cubaton Nando Pro Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df34d6749a81cd96c80da8a84b7d020995912a540774d9a10e05ccafec2fee4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUM71609872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f3cdb2256d6d1d9981120869401df7c6a318ff003501da6928538411adcd65. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71705442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2527876fb9855be61833fd84b79dd4f1bb38993568ffc2b07903e9bdc8cec5e8. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/TCAEA1834022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4542fc2a862586c8c8c960b48ebcac2e687f8e08edc426b7bd4df3b18f00ef. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAEC1980430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f64d915ea226ea55f8e6e65a47263b05a4197a1a0819f4e49f8d886dca4735. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:44:10Z), 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/QZHZ51921276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca641649acbcea9645ccb5d29cfca5fbb708844639bf4213278fe54a3c266d1. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QM4TW2087237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0374b02e8df6e4ca856c94e194a832665502de96f4a89483762b91d3fcab9fd0. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:43:39Z), 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/QZES82008469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583977a7edef7321f19adee9866a6a98c6f3acaa610c95553ce2ccbc7fece057. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNWQ2043821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe047a7c0aa9d4e39ef680c282b169d11b09dcded970c3fd739351069bbc2737b. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZ7R42251104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061adaa24c759ae7d40693bbc1de4cf0925d1e8a04b93c59f5f19fc8eb4cc9e6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZ7R42251519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1e7b7bc9c0c16fe22175c6a1c4c0d16ed8a82103c2a652a36066f3787296fd. 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/QZ7R42351905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1638d8fd49c06d3f873c889fa24fc5e363d19fc5fa4222d413ec618125d2eec. 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/USNPW1000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1638d8fd49c06d3f873c889fa24fc5e363d19fc5fa4222d413ec618125d2eec. 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/USNPW1000032.
Somebody - Reggaeton Remix (Spanglish Version)
Somebody [Reggaeton Remix (Spanglish Version)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590d36d8bb71ec2b68b3bcbf97755c95c15302f707b63862cfc878732722150e. 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/USUM71516113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e5132e7f7824b3e7cabe5dcacaeff17d79170ea588ca95212b1f7b5e6543bb. 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/USUM71517682.