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 0x9ae05a390f2cefe5aadd84ea44c74d9b00222a580cc06bae023b3eacac8fcebc. 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/1000586b-b93b-4b45-83a7-b2e3dd0af367.json and https://artists.proofprofile.net/proofs/artist/1000586b-b93b-4b45-83a7-b2e3dd0af367.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 0x557b1ca3fde620800ac091e232a91f1484bdc4d60c68f998cb52450d2db4d64e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/INS182402268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65d13018c9d2caf063c86dcf9a8b5977ec64e59dc1908993a7ab2b0c6217c5d. 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/INS182402269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc5880a1f523722c6c484b8ef373d4933dab968023a10dbbd497af27778f4b5. 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/INS182402270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545337986570165c22ccd4f884045c37ff9a9400a9b5be5bf218ce7e22053129. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/INS182402271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d93ca928549702addd784ad5305c97c0d04e882701c3a4ccf4329780fe3419e. 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/INS182303279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dda859da852f856795197a155d22b2deb9f784c768e843ecac41ee1ab5269e6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INS182303085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47b1baff4fcb13f3f4784736d1bc73644f3c859d5a41cd13f852e16564658f0. 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/INS182303405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22414d02645070f46d405a3b2e691c823a9afbcc94281f55910c7b899e633959. 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/INS182303471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e62053bcb7235aa6fc80688df9b0d84b11cca07f7aafff92b7e65e137a55b9. 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/INS182303652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7957f30527fda0c77efee1668ec8cebb362f322370e36cf4b635c4fb52d64a4. 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/INS182303291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30975c0c4b8af358523b472bca5351b03f48d409d864737e147303d4561ca9b7. 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/INS182303183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f332020915c4dea7ee19ffdc2ffce03f5c3a72e3b643e9b55b50adc373a149. 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/INS182303744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e103488b5378b02bec57e938755fe2df3fbb3e2298fd8905bd2c49d0945695. 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/INS182303740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb91b26794a3123a8ce55f65ccbbbf49ca78ff7c15d2a4fc66e0b1660d775b1. 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/INS182303663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408df9a95e5422e8a66aef37ddf00335dfc9d5db9a890b39d7bbe2b6eabc1617. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INS182303552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe2085f447bbbd3dcbfafcdd4c87c070e7342bdf4f4ce740298313e2f8f1065. 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/INS182303230.
Drop The Beat (From "Mtv Hustle 03 Represent Episode 4")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4083f2bfa82afe2469f2a475c8bd920c29514f6c4c75a4beff16082cb7f650be. 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/INS182303210.
Drop The Beat Fun Roast (From "Mtv Hustle 03 Represent Episode 20")
Drop The Beat Fun Roast (From "MTV Hustle 03 Represent Episode 20")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c53353c8d826da20c031e948f887c4f584cc3bd69350a587c0a71908980ab4. 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/INS182303742.