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 0x5ba4aa0f7061c13cf10b088e71ff64d3bb7a2f3d8c7c392fe29b37c13ece8984. 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/1ea7b385-f946-492c-9e10-957befd41ab1.json and https://artists.proofprofile.net/proofs/artist/1ea7b385-f946-492c-9e10-957befd41ab1.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 0xacf5f8f31de5ffe70d7c4119d15fac4b6a2a88a41230d5b29bf5150e2432ed22. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:06:42Z), 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/UK94R1400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdb3e7db50372627aeff661a43ed291ff7c2e6eaf040d34443f645313b60051. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBRYX1800223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425f6f14f34d84ff21f7f4b7fefc84068ca7c60c7b438579b452d822e7012b0e. 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/GBRYX1800227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7a0837709684b519cfbb1d7d4a5a48cf1247171395d9def45d0ad5b32771c0. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-17T00:12:32Z), 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/DEU671902096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9099491b51376b06dd60bdcaecdc2838a756e1a3edbfe8328c2e546abeb08998. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/BEZ352000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b1c425727f03448ca45b601dcbbecc34b8f6fc1e05c5fde5cb28ca02bbf306. 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/BEZ352000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746c9aed2bb55eaf3577985f9db15111f1069b9ea5bf9ca998fcd95667f81895. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBRYX2100292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa355d4816b33bbdb96da5f3b4fbdb102f07dd70faaca7a1dc068cfdc0497b8af. 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/DEU672101313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd8a6a9dff928c7e9de4e3872fda688c621c031ef9f644fb2f66773a580ba9c. 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/DEU672101314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b84078c2d01fb3a2c650500ec1dc72b4873efac331f0a7a3449f8c280464381. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/DEOB62500959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f02530a5d2a7f02c04b4247553e900319755cdf1ce94d1aa287d3ab84754d9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:58:51Z), 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/DEOB62500961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1039b2dce0667b08c341b26954caa7814f90032423a01a96772eec0ef4381df2. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/DEOB62500962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57775f149d84a382a9b0d38870748c4f3bdccdfa0ed91130fb6eabe2679a9b1a. 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/DEU671900827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38d9bc56b08fcfdc47d14172eb67f1bf499d62803d96aa34dcb45378479e4de. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/UK94R1400041.
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 0xd35a8c0229a4abd7da13be1635f9bce652492a02dfc85a8eaa652ad45dfe28d4. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/NZSU12400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce77c50ee3ee5200a9efeb06a0429c43f8573a00c9e048061a0ae5fb48dbf2c0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEU672101803.
The Fifth Planet - Forest Drive West Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7de3b9d5c0a70384fb3495623dd4b2fab165b25051719d7d61e59cbce326aa4. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/NLM791900058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475880be2b87b9cd20c01d2c59e33ffa925a5ae2ab6376ad6e9d3ad5a9e17bf4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/UK6822123019.