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 0xf8b6a67ae17a77187cf4436c0d7e94247e9c1ccc0366ba91cb7ed356f442a52e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc5f9ea8-31c8-41f7-b8d5-6844e6082250.json and https://artists.proofprofile.net/proofs/artist/cc5f9ea8-31c8-41f7-b8d5-6844e6082250.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 0x707d94e41ad5b761d8a6af3df4d21035528c05abaebb15bc8f010e0a17fdfa99. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/US83Z2487871.
Leave the Rest Behind (Unseen. & Sesli Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74dcf2cd88fdf469aeb3e6af9ff31290a76acfa5ac98973e3acc4eb9a34453a2. 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/US83Z2470394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687b42ad47202751f39cab527d53bfb0e41e368869fa96b7bd3260494eba10db. 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/NLRD52201090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707d94e41ad5b761d8a6af3df4d21035528c05abaebb15bc8f010e0a17fdfa99. 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/US83Z2487871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e2215e42488eacb4a1f86ac56373518cd27642a3aa61cb5001cb6c4635a5ef. 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/US83Z2487876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1458944cada3dd457904613fe130f8802d8b49de939a76761f7958a88fae6f. 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/US83Z2487883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e66a65942cd50d75c621ae15bb1d4087920a1dcbc9e917d47c6862e9b1d8bbc. 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/US83Z2427872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c6ca4bf5968d006a417c557a9e9dba07e164d5d3491b6d2519296e2f977301. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/US83Z2427876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11486238b3b20a928c3cddb56fe4023b7c0451125c2b49c58c7d3f0e856d0d0. 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/US83Z2427881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5627b6f43ffe6c6aefce92a59f99d4488f4efb286e3da286021b524d7c54869. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2429701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163f809cec1703c6598710f0d02a220aaffbe96f2316bc6f96f074770d8b419c. 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/US83Z2429699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5627b6f43ffe6c6aefce92a59f99d4488f4efb286e3da286021b524d7c54869. 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/US83Z2429701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64aa6d866b67c4626aa76c84ee536866f3d71ea3904d5b059f35192e9d558a6b. 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/US83Z2429700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d22c2113b803868440860d5a3c553e7c58149d0339d90e0dd33cd2cde56ba4d. 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/US83Z2420844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d71697e74ece414ea4b2539656fae88c53603ea930d104f8bb44549f8bb37d. 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/US83Z2405576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d71697e74ece414ea4b2539656fae88c53603ea930d104f8bb44549f8bb37d. 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/US83Z2405576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d535ffd14879e99f3619e45bd54447e853924e17a059235e48f84aef6a38f8. 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/US83Z2405560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216e545036bed737df771f12c9793ed7ac740779458dfa861d25587723a852c3. 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/US83Z2405566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d73109a3e807787d717860ed166177e04132c2ffe063280685f8448c84e6c7. 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/US83Z2405567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad31504910287be53f7d1ef16e313dde0f293f5107648cb4af3ebac188d24602. 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/US83Z2405571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb0cc9239a9ed4be6c19761d1370d3e50f2cf5bbd4fc7ca75b92bff0d4b5f0f. 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/US83Z2405573.