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 0x20b852bd5cad1c4c18d8577adfbb701514fe713c7fc9ebe5b68c753cd250f978. 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/e1b98e79-e484-48c5-a118-189a20e132fc.json and https://artists.proofprofile.net/proofs/artist/e1b98e79-e484-48c5-a118-189a20e132fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Takbiran dan Lebaran bersama Artis-Artis
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 0x29b7f317bc3d0f1318dae470c4fb11c00cf64721048c264eca9bbb5251691059. 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/FR10S1492023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a711405ecc32459223cf17a44be6e0db0c50f044231a65e703c5ae4acb7487. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR10S1492024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5bb24fbbf4f34dc9c3a8cbfcf66cd51119512d5b28b4e3e4c5b5e5d230ad0f. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FR10S1492025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2a4cb4f7c33cb9292d18404ee6f0df713a5340ac0a2f7ca6062dfa60b7036c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/FR10S1492028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2c9e20cbf4199ade7637d454970e9e0ae7a376a8d032c0bd5ee7dcf45da282. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/FR10S1508347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc715b46a1c89e717e80b949f957bed3c98f9a98a7dd99762dc236284f9c4d5e5. 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/FR10S1508348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990a337b56a764c767a7719657588e19db556b9396ff5eafd9dc2c3d5b6efcc9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR10S1508352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7754c9fca354b835674673ccf1077d02662d44f94410530048b5024db6545900. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR10S1508353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae481ed215edbf2ad01d3e3079ced44a428b734693ff71ef3f20eb96acb46458. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/FR59R1987602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2042cffcfda304fbfc8202fcb5a2e047dc6b4bcd223ed7922f654a7d0ce70ce. 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/DGA092356566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d103b36e667965fccec27de959e630d924a8b85776d0a2a687375fad5f3b538. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DGA092356581.