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 0xb785fb1db9fe018d64f80f5fe13d454c0e0e2719e7e014609b325d30d23baf1d. 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/51cf1a34-6f76-4391-87fe-d74967ac0989.json and https://artists.proofprofile.net/proofs/artist/51cf1a34-6f76-4391-87fe-d74967ac0989.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 0xe4a34577ea47903ca7bc2e39585e0d98d7cfd1e726379a38318f2a04d1b15512. 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/IDA601902542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014a561b97baccff358605e04d2789dd6c2da8bdf9fb4be9910703e88b31e990. 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/IDA601902580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc53034d14efc6ce58d66e969f22718bf7b5a8c21bbd51df37cf5ab1621d72db. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/IDA601902589.
Cuma Mantan (Dulu Something Sekarang Nothing)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1519db011049113f00babdd3a5c1e7dfbb3c3be66f447bd9c3ef6425b5c23354. 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/IDA602300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3ec040aabd4e1a6d1f8c611c74b72c2f8a1751e7b117e420caff943d0ea40e. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/IDA832109969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1772bacae805c42e675b7601dd3b6ac3e95b27fd4a2d4fc3d8edfd7373fca1. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/IDA602301518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c0ba4863cd4868e4b39119dbf4d05eba369c61bef936ef942714365a570961. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/IDA602301531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915fff34adace0e1a07fd20f8cc1aeb3c2bba81090957b626d8354efb2e68221. 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/IDA602301538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86658fbdb2b5d0f80f00d028455ccdede14c01b0446eeea521abf21cfc75aabd. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/IDA602300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce43ce9fd4d047bd184fe260db25caa8bf74369351fc78c7834bff64347242b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IDA602301644.
ILU IMU ( I Love You I Miss You) [Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a177e899858f1690abafe38c1f8e578456ce20973f6fc131802f2ae791cd921. 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/IDA602301714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959484aa9786a027d32c159586b4974754a5abdb462114598c62489b1c0471c4. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/IDA602301803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1be648f539be55521442f3b302c9bbf06a6d1b404793d078dd66b1fd990b3a. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/IDA602301291.