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 0xdb80488ac749601523e9f8540cf5bee18dcddc54fd9892b24fac2b541cd4baef. 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/aeaa2ba7-4b06-43c1-a15b-2b99f2a72512.json and https://artists.proofprofile.net/proofs/artist/aeaa2ba7-4b06-43c1-a15b-2b99f2a72512.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Panjat Sosial (feat. Gaga Muhammad and Lula Lahfah)
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 0xa3ffb2ecbb9534e9e6edfb3fe7089a4d546577cf8da5ac33036e28126ecbbaef. 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/IDAA21700621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227d6986b817682c36813931fb897e536431389b8c53b5a4cbf53bb9fcb71161. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:50:00Z), 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/IDAA21800160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2e4503f8ab0c291948e303a21c7b23ed67343943ce48052d989be40243dd88. 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/IDAA21801073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6620c01fc759a0ed994739d56f68e10ce44381885f93f65f250122b443956958. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/IDAA21900059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ef8d9b9f676f2dae15c077e4234ca0f072f316cac6c8c9e3b61a6bb04a33b3. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:38:25Z), 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/IDAA21900626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2e4503f8ab0c291948e303a21c7b23ed67343943ce48052d989be40243dd88. 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/IDAA21801073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66cda5b25845388b445a65869c75654efcb341c28411928f758609ce5b18fe2. 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/FR10S2573658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4705824a161f175fdaa4135ebaddf217b341fbbb9ceb2fb76609466358c37166. 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/IDA141802543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0353ae9750fdd7288cd50953fc7bd36ab11b3386467d35de59fdd014bc9d04a. 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/IDA141802554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9668120e3e1bc99da8d09a24b28f3ae12f016463978ce580c5f9f5875f705fa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IDA141802627.