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 0x3a123f8a66fe931dcac8704f55e060a1f6b5cb1ee098ced3b9b8ff86b6f37b39. 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/bfd87051-1f31-44b0-aa58-c1ba5a628ceb.json and https://artists.proofprofile.net/proofs/artist/bfd87051-1f31-44b0-aa58-c1ba5a628ceb.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 0x65fbf13500441bffcb2f454d577db19e2723230c05442f9ce0436598c1720c54. 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/QZ4JJ1738173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6066be83a718847bf387932f672ddb8209ecb84e99b3aa7f2fd2716899de6393. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZ4JJ1738174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06c7dc32556b1e92915d44de5f6da2ca0edba23491496e1e6e9a6b69bc5e91d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZ4JJ1738175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c611d97dffa2ed3443021b409f61f19d948458d48f234cc4f8046a6ccaaac1f. 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/QZ4JJ1738176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42dc539402837065c8b7131f8cedd2abb7a8b7ead74580826747e7d9edea5ffd. 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/QZ4JJ1738178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6010d45a1970a8447a0e4885b4bd8b4ea6d7742fc0bfa862adf7dfefbf12d9b6. 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/QZ4JJ1738179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0568da6c1f8b673d45ba226137ec33cfb7b4aa2d367bbc1a85fec0b2f796f922. 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/QZ4JJ1738180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7865f181cebb594464a61e2375ec05f98bce839488d333913eb46cc7266123. 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/QZ4JJ1738181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7654a524298c69c5ce7f4fc321806c40f9ca8a36f7fce0f82b0a2313838525a0. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZ4JJ1738182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35aec6115e136a0d192c12a32ed2e72964f85689879c1e8eb59db304cabf80b5. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZ4JJ1738184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e02249b84e4c63fb057f25cb2ee1d271e1fc7163623fe9719462c8cb1a9756. 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/QZ4JJ1738185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798dc97400a4dc8aedc4298e18b71a50cd0f3f5a027f0ec022f1c93315c7e184. 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/QZ4JJ1738186.
Kelly Bundy (Powazny Gracz x Hardbass Adidas Remix)
Kelly Bundy - Powazny Gracz x Hardbass Adidas Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15edee485555f8864b6e60d94348dcdeaf5007425740611224c13dcf370728b6. 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/QZFYW2138267.