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 0xda87e8593ebd8b2db39b300f4a6c7b4206ccf2b1c8c18a6be076c8f6b82c1ea1. 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/6f439bf0-bcb5-4f0e-abb1-2d6bcf276ee2.json and https://artists.proofprofile.net/proofs/artist/6f439bf0-bcb5-4f0e-abb1-2d6bcf276ee2.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 0x43bfb287a8191cb2d4cf0b60bbc0cc14002d6673ebdc3358c8626813040371eb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYEM10450062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe63f85531b6534ce9532f7a7a2a7315785ce84a221ff0dd2f9f6212397df2f. 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/MYUM71900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb8e06c46cc6a5e12736d805d5e57fe0fa310fd8dd8f5a915d964b5d6c04af2. 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/MYEM10440045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95322f263649f1759b9a3d903ecf714e727fac9f9610e6b220da05fd0a3b75d. 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/MYEM10450063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b89decea84a689966f30e008c5f0080c5bc4a9dd00a6db20d8f49d48bab729. 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/MYEM10440046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d51c4fd5c85c6d9195523c24d1aa222606f0ba373b05ebefbdf238df2dab69. 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/MYEM10440048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261b02515259ed8ef89563b3100fb4df2758982815e6c636c7e7f56a1444fc03. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/MYEM10450065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bfb287a8191cb2d4cf0b60bbc0cc14002d6673ebdc3358c8626813040371eb. 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/MYEM10450062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e7bfd9d48daa34bf4e845f1e7adda28b52fcde0beb0952be47262b613fdd05. 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/MYEM10600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4efa67f9315dedbdb82eee3e0e520c820c7e29596aa847e2cc41b278e31064b. 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/MYEM10440051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8eadc7535ffd551b59477ffaa633bd9f70c934fd5bf35e29c2ac5a5a2f647c6. 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/MYEM10140004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4ba79cccbc56438a2f38dcac16d766f49f62a257c2fe27f3e505a7ea9bf7a3. 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/MYEM10440043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0ee6c24738990ab1184531d0a7b6bd4d9dc7a5faf88fbb8cea4ee38c253b27. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/MYEM10550002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577cc8d2826960b72c06338df0fb9c47c03451152e295627a307f43283169da2. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/MYEM10500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95322f263649f1759b9a3d903ecf714e727fac9f9610e6b220da05fd0a3b75d. 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/MYEM10450063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9be6aa8bc09bb71f9134df66823029b7c78cecb2045fb5a40eb0674bac4d89. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/MYEM10600100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85753af09282e2a1912af7fbd957547b50a0362d0ae84b0f2dee7c8e544cda07. 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/MYEM10600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc1788e140f84cfa1fc7da48bc1483889ee50845f25d42476945b6b6d9f3e64. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/MYUM82100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c621ba40949f85bc1b3f06348502be29e6e2022df80bf4dc5c6661ed3e23fd6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYIT12100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225479de3b7eff512066be051b7cfec4e6182f2de1c21dda4c1fcf92c46937d3. 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/MYEM10600081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574e336f4ba2237a9c449e5a7274e10c2291f799adca86f5cd19a3481bb76894. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/QZFYY2427922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8eadc7535ffd551b59477ffaa633bd9f70c934fd5bf35e29c2ac5a5a2f647c6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/MYEM10140004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0eecf66b13a1eaa0e61fb1675e57e1221b1fcf2d1ac7ab72cccfb49d791ef8. 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/MYEM10340034.