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 0x5c84df2a4172c77ed848cd724a5b167fa8d730d66f295f9c359f120a1417a0e6. 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/12071713-6a48-4994-aeef-e37d1a896f2a.json and https://artists.proofprofile.net/proofs/artist/12071713-6a48-4994-aeef-e37d1a896f2a.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 0xf652f8cebec1704354997a1cebd56c15faba60df69a16f6dd2dd70e0deb88c2b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRNAR1800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e6fb3e294f9addae76241332da46da5f33a1fcf5b065ad3daf8c583d3b9226. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRNAR1800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7543e522e2877bfa3ca786000ab8687b4b4c0470c60b0c58c3cba02aa0fb259. 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/KRF251900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4734d177ab08560fdcd69cec582dfd5f9c36619a3e9ffce9d27bf0173d44226. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/KRMIM1913942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc486a4d191e927c67c540593508b2aa825681d2f1da2a366a40599ed046914. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:51:10Z), 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/KRB472001112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7870815387d907a716a54d7c5318737c9a9f393884b996ec74adc370d6f6965. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRB472001114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe7e606f56cb799b43c62a8aa96c1829b6db54b9317b67105473cd421dc1030. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:51:27Z), 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/KRB472001115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89832e73014dda1b89fe243f85c049d471e61011508518ad77df8d2558d933e. 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/KRF252100045.
Bite Sisters (Original Soundtrack), Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e8e0d56da3122208573e2f3b967c4cfbb775221c67363481d053cddccf67ba. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRF252200428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665996a6f4ac28f9bb429176ca0303f3c047e4cb6205a2b6dee85681b0e4022a. 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/KRF252200430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549ff98947b81d4d6461eaae7d412147d9960350c867b8e48a087599595f3c2c. 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/KRMIM2375252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a86689d2cd4bddb6895da1c29bb37c39b4698ccd015cfa1c02ce66543ce685b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRNAR2333018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e38472cc6eaab9ba62599aa31e10df97d948428e009ea5aee65fe765216bee. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/KRNAR2333019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbd0d139de94cee291073bc4c82ef600c9066d0f53a70c418e7139b3454f0fc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRMIM2446133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5c9b2653f8f50349152bd1e9e3c05cd5fc9c53c1f2d046813dcb0d2b3a0c44. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/KRMIM2458229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe908290fbef6bbf6ca94404fc720947bda0ee0b66e39e738013120aff637cb38. 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/KRMIM2472092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd454dce12ca7f8cf9dd9cd8ea64cb1d2d8108d8e6c9306b7e816217378ff0ccf. 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/KRMIM2005873.