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 0x6353c39c8159b657e990b84d7b5f6b1cc4aeb0e2aa18bea5bfad935e674f4b37. 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/8d4aa9cb-888f-481f-b5da-c743aaf6ef06.json and https://artists.proofprofile.net/proofs/artist/8d4aa9cb-888f-481f-b5da-c743aaf6ef06.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 0x2c33fe6353484ac1d75dafc402fcfe1d4e4fed4872ae484b9ba580606ef63d69. 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/SE6SA2180025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a595dd8c4c4eb2921805f2b4a0d5705384e6e47915ba6f2536077178cc60b3a. 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/SE6XW2198722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e55cd9f392a77b726f61771bd95613e4ab99ac3799bb2515ac431202fb97dd. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/SE6XW2198723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e146b279574e423a07dc6ba9645512f971b873f6603b333387d3226dcd2326. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SE6XW2198725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe927d9dfb73e33a8d5141dd77671e826bd344ad9ae66f71eecedbcfb47aadb46. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:10:26Z), 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/SE6XW2198726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b64e55ec121562f425c0ccd4ae3fdb9c30b3a8bb72703f97140aa61afdd8acd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE6XW2198729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d742e2ccb9919251cdbb0ae443b6d32e0401073ced36023bc6d2108ab79359. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:04:46Z), 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/SE6XW2198736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef509a3e0b46692401a3a886361b053e431f3241198252e0c5c10b49170fbfa. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SE6XW2198737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033391e88bda7134ff631b9c559950563324ae66429edfb8a612d9b92dff4486. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE6XW2198742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec67dd7acfe96ab8175353868fbf825e7ffd6885d1b0cf5aa4103f401f87e7f. 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/SE6XW2104294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefb96db22cb4483166c1a92234329f5a7c2bdd580ee502f35b8fe5354a7517f. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE6XW2104299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36eb870fe9d28cbbc50b44e5f9d65d19c63ec0f8fecb818471c3002a13714bb4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE6XW2104412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9390e41b3781d016e84d43184301825e28a4f79f9142c205fa0041e6fbdcd631. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SE6XW2104414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9984b5a2aae3a7d8d876179aa312636f5d56a6aa6dccd4cb8e14de72389296f3. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SE6XW2104417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8a1939fee7c2461c3169d635d32cebfe7f2488cdffc010cea0cf6ceeab55cd. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:10:23Z), 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/SE6XW2104419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128e502e9ea1f030eab85a90436b248c46bfa7c5004977d7e4351523f4f41049. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-21T09:00:14Z), 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/SE6XW2104421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68672be94ce7c9b7c65220e99168ef6448ac57937b218438e6f0759897938449. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/SE6XW2104423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7107148718c31c53f336d6d1111544393fcb0ffd84fd8e996f1f1e6018d984d5. 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/SE6XW2114575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4328f5dc044cd6493a717d4833367064dc2b84bd959357a218147755d14b52a. 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/SE6XW2114578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a8fcda40b3a7c1e6d7ef25b063d9283ce03840976969af0f3afcc991b0696c. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:50:21Z), 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/SE6XW2147215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7577972fd886c6757979427305e9fd214c17aa3225526074aeb3e0b8f00f09c1. 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/SE6XW2154100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd682edbd13f1fdf5aacbe4ae38089ca61a7ef8590a9dfb48d66bc75853e2f92. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:53:21Z), 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/SE6XW2157595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39019d394bd9694896f3ef26f2e0fdf74f7e57708c8fabfdd7fe30cd2ff4fc51. 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/SE6XW2157601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eeed1c8172872c6fb6ca5890c129725d3341ddb7ea5d238c67a4f46678076d0. 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/SE6XW2157608.