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 0x9ea3f9cc9b9883929e4e82414bb27fcaec7ad9cdc09ac20b8a2ba36302a65f28. 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/f92d75c7-31dc-4359-b193-59d0a82e3158.json and https://artists.proofprofile.net/proofs/artist/f92d75c7-31dc-4359-b193-59d0a82e3158.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 0x2273f6253f5a3538f2531ebca494f618fe9db1cc8cd7e5570ec4f9f106899ebf. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR59R1821533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a27871d2fcb5625c8d91a83f02a5f71f2e22b9b33b6e645ca7d16da674b283. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR2X41949014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa512389c283f588fa114ecd436757e5bc1d800d25639408802deae9f18205cd2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR2X42089286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183859ff7fc184062ae7e040c63250ac0aaa4b9ff378cd653cd737a477fb8ae9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR96X2003892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9542dd66537541e327ad2f50df84caa0283bd1c1636ac555d8a9ed5896649130. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IDA712000326.
3M (Memuliakan, Melayani, Membahagiakan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb03aac1c969b8a069de72784b45365a91b0aef0487c11b44981f8afa2eb8e8b. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/IDA712000423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe153f46c85b225033e1538be1f6ca19b4af8896f7252a19c79431fdd5a34c630. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IDA712000434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d836355289ae9e60c704fc935d8ad29f042382aeaf3234d1f663de69c9fd01. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IDA712000433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111cc39ec369621e1c15c56e0a08bf1f55cd19f1c0ec8fcfadbcb2c1bbc54459. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/IDA712000500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71642bf1d5aed0ee553e7e9bfc97d15046601a11e2f1739e3dcd694fb18db269. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/IDA712200695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec85c9cfa8f244f3d28ad7a01faf64a82985c88d6d94f3d5c7b8d23fc2482af8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/IDA712200724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297268ab2198a5ade3d8400faddaf320d60f0320c2d9d62cfbf029e689de5477. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/IDA712300871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca4d723f816e3ececa5b471eb1e4680df6138390b2ddbe52cf6e36db1c21b01. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/IDB992400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe31e8da63948e00acbe40dfa9c74b0bc5068991f9a1977cdb14eaf221c7a31. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/IDB992400283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddd297f761a56fbf1e9a5e0d2dd2ae7128f6ce8e14dc2b8e7914776a36cef91. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:32:21Z), 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/IDB992400288.