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 0x273db838cb9f51ca534f7c264330764f2bc849b71011f1f1214342bb6d5c0e09. 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/5fa1d08b-9ac1-418a-8dd9-d17454d432a5.json and https://artists.proofprofile.net/proofs/artist/5fa1d08b-9ac1-418a-8dd9-d17454d432a5.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dbfc5b8948544c26caf18349afd2a71ec314deed840182c19aa2014af511a7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCABH1264639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1d32c2dcf08c02c1c601251602a0e39b3eb22ed5f15d3b8ffe6c90d08b06ad. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCABO1308678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d91ba783f5b0aae76530c75d9e8c233ae0120fc5a0215b5eae86c5579cc8b4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCABH1264634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618c9068daa4e3dc059bbe30767943c87eaf149d3801676846cabb19603b3836. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TCABH1264635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377aceac375b3dbc9dc1d4a8a299661951785eb3d64e724b465bb3b989f44cb2. 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/TCABH1264638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820a7ae2d5a379e3409ebc5814172d75bdedff400a6543af15ca6d82ccea706e. 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/TCABO1308681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6886f1ea90eb6e066c42ede79557853d2218b4f94c1f8a28874b7c3facd0fc98. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:31Z), 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/TCABH1264647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf6e105aadb9ccfae2d069cacfd26a7b3dcbd2e2b0b787e40d96f4ede7c1162. 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/TCABH1224773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176a6d4ed570cd38d0520026061ee25243b8bcee7a185aefdf0aa2bc8bb29dc7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCABO1308669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e29dd2f3cd7e8402abac997302cde0b9c37978af8adef39cf1376fafe69ffa9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCABO1308682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96305c40600d82435bd0806a201102de5ebeece054356636645da2e7fdb0ca8d. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/TCAHO2346075.
Ashley Jana (Music from the Original TV Series "Dance Moms")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9f1a7b4f2a236f89cf129f49ec037254073324e24fdea0d473b3704da16079. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:57:52Z), 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/TCACJ1564013.
Figaro: An Original Musical (World Premiere Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df680967d4cd6b3daee963d1fb743b711266fa4ba718f9915bc4f7df6babf05. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZZPP2400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b232bdaf9476f55c2f4b63e7432221d42e66cf701c8b812c103254ace719e2. 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/QZZPP2400503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a39cfd4af7d3c63672613e41d3891f8e32d53bc9a3903591c193604c1ad3d6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZZPP2400507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf772265e20b00bdd90976660ab3554feafa450f6fb03e437f4862623da23d439. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:52:57Z), 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/QZZPP2400519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c682c8cc5760f6376127be5e035c422882d98ded011e9508830339a6a3e2f82. 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/QZZPP2400527.
Figaro: An Original Musical (Instrumentals from the World Premiere Cast Recording Vol. 1)
Figaro: An Original Musical (Instrumentals from the World Premiere Cast Recording) , Vol. 2