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 0x614e6d8b9db90b4ee2af5a45c8232733dbb2c14be578ba998d7b6479e56d7e16. 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/c3ffb653-621f-40cf-892d-0d1ae2d11582.json and https://artists.proofprofile.net/proofs/artist/c3ffb653-621f-40cf-892d-0d1ae2d11582.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 0x59f1f46c705a7675014e3f8e5a7aad501891e229fe168d4d45293423857a8310. 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/TCJPA2431725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408e90519c05640471839402f55527b850486fe9132d2d45e611d72dc59554ff. 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/TCJPA2431726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ea09b611ffb49d3a79ae07a6fd027e3b8a89b5ea692e121231dc4f80837535. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/TCJPA2431727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cee195bc75cbb3a2fc8c7249b069583bda4bf932d910a410d92e661151e9b3c. 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/TCJPA2431728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792d605dbf107ffaaaa0aa0bf80812f6db97d0521e0f035ca333f8de9b06098f. 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/TCJPA2431729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622053cb4017a0ffcddcc6f27f8d1e6e8dd52f55e91df59d81873a3f6e86ba8e. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/TCJPA2431730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12af828fd8717465d4734f81a17c0bf46dabf9dcb7f2a324d164eb90f85da63. 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/TCJPA2431731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68383aa24c1753517a4685cd6580abe0a008dc02dfcdd7e1f8e9725a8166783e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCJPA2431732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887a092bf6afa12a3e074833b16c130abdb1569fa7577d74f49fb1d4a7dc48be. 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/TCJPA2431733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10226c8b11da434dbbc84702c80097a75936de3e65007a1393e6734959cceffe. 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/TCJPA2431734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc90ac5c98c84398fb52120d1a4b632c06b9be89035e25ab804972f99bb8137a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCJPA2431735.
Perpetual Reflection - Radianth ether Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f958e6d364ed1d7267cad25b28644485ab6b2dc15214474c6ffd37e6e65d4a. 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/TCJPA2431736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1095c316300e86fc1b3558167d8a5858c5af767aff32edb8acc443e6dccbf0. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/GBLV62322652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e08872979a7113150ae1c61602d9f62038a9556c1aa3e1a5c7b0a90506d9bd. 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/SE66N2322024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ce2ec9218d4011d33cb059a66f5b493e64b61df0250ac2630cd23cfe9bb638. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/JP92N2355090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a33d12a7806a5c6a29d19ba4e4171f04cb93a3ffbc71dde2f02dcdb537d7c9. 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/JP92N2348049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1efe67697e0b74b07828af8116cbc154048fd561c34c10fcea479a2cb7e446e. 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/TCJPW2341720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbe9e45b8169b0cec60494dd509c5272ab89b119c74fc13e4912439143530d7. 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/USLZJ2349480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00806fee44b7d18352c8d040bab4891cbf07df6074bb6db60e1d2d9ab4a1ecd9. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/JP92N2280646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bfa52514869b1d3528aa080400bd0d2559933c436d7cfe8375de8fdee27c02. 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/QZVK62300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe925e68dc14e35885f97b79d8b17f16c4ae9c1aec2bdac947736b6207b8a0ed7. 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/TCJPS2201185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd81fdd7bde0db4eb3af1dc517108696164b95756654ea1e85c470ab60af0e49. 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/TCJPW2316779.