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 0xadc65a31e6fc71471f5b798aec4b119150d0a798e50c421ec2975ca1a0c26271. 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/a92e211d-d5d4-4877-b7ff-8b6593873e01.json and https://artists.proofprofile.net/proofs/artist/a92e211d-d5d4-4877-b7ff-8b6593873e01.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 0x8ae2703cb916640e38f29dff1e22d61cc1176b8797aeb28dba2bbe6488b728e9. 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/USE831566439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206d987f7c199958ca090b5a18b60dbed972b120fa3825678a49d9425616c3a9. 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/USE831566440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bd374a7b19c85ace4762e2074c0261ab121e2a0b2c7ad990ac76d9ef73a0da. 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/USE831566441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62716aad7228ff333c07200638431ce4f63646653df4dc09d9e5f54fea64c086. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USE831566442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7154477d5b372a88de414b3444428d37e807d791a2edc8d4f1da527e11405e. 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/USE831566443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac53099d19dc70bc746683043fa8aa292d50995c78d249207be6e086fa1ed75. 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/USE831566444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c617baa65f84651e5376a8d7dae63aa6627ad855266aa97b14c7046e7b862c. 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/USE831566445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c72a67d6901ab6f2742eec23a7ed6dbd432ad06dd811ec722d29caee800b3b. 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/USE831566447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fa1de5a224fbba37bcd0ba133b28ee5aaa815f7e85ec7e89e9f6d5d15d9db5. 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/USE831566448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618e338810d85becd49923452b2c78dcf9c1c34bb918e18169e051121f91e854. 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/USE831566449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0e95ad49938770902947a6b1fb3689c6b931eb25e6ff43f36f01de638b8bca. 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/USE831566450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7348618dd0474daa21e1237a1c4fa4db67514a725c4ead8323ebae7b228f28. 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/USE831566451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690c2be3340b8b8dea41a30b49db4367d080819436a989caaea72b0f34b24c2c. 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/USE831566452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996d6b5ec1bffd28727a07b8a209d52403721d73322911c2069e36bccb9bce9f. 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/USE831524564.
Easy Listening tribute to Pussycat Dolls
Easy Listening tribute to My Chemical Romance
Easy Listening tribute to Bruce Springsteen
Easy Listening tribute to Type O Negative
Easy Listening tribute to Colbie Caillat
Easy Listening tribute to Cradle of Filth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ebcc89a30b02132727a265ac775332e4e3a5fce9d8ae7123bfae1dc7908616. 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/PLS102270792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629b66078cd72ed8fc3f89d819f5ec44fec2f97f55ccda1d72800725de029526. 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/PLS102270794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ca0c6eb6051532a49fd749a0eafff38ada5f5b5d824bf275f6817e2fa139ea. 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/PLS102272991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fced8a2e8e7e3deae0eb729d4b913fc518d179a09f993561b8439add787c99. 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/PLS102272993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cbedd87d208f5538b6dfcd09c47e288e8a9817b29a47458a5a5e8040d1aee6. 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/PLS102360187.