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 0x416caf4c9627a5a2bb965a497a88859747de9fc5fe8931e4ef306b645365770a. 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/d9da1fab-0f2a-48b4-93ab-63628a961484.json and https://artists.proofprofile.net/proofs/artist/d9da1fab-0f2a-48b4-93ab-63628a961484.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 0x2e90fb76c2439d1dd59cea4985e61e426b4cf6c0a9fb4531a9519bbdf24080d6. 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/SGB502235218.
Aku Sing Berjuang Wong Liyo Sing Nyayang
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183aeed6dff7ab2a028b64f71266392eb8ecf81b0870b857d134a92d4926112f. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:23:29Z), 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/SGB502276956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7af57a6746b3007674e2269ba70d68b683bbacec819f735781993247591053. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SGB502310538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb469205f2cd5c4669cf4aa7c1eeff080bd5297620015669408248ddeee5bd235. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:19:52Z), 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/SGB502311317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719f6ed656d4336911e39d46077db39f66edd556aa99836ba3f2a0953815f3fa. 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/SGB502311244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6bbd015b7b2386dab17d95802c9004191296c8bbb09ac1568329e856dfcb98b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:18:05Z), 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/SGB502311245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc70fc7e8089bb68f214950a12c039650d5e1c8e1ffa0929d4e5728ad3125707. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:53:19Z), 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/SGB502319041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda00314097a3d703ea80f6409ac75b27dda2e354b5596fbb23d90078092ec309. 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/SGB502334345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a6833afc1c2ba0d77387edad0249a17119da4f6d8430357f0dfbd7ddeac49d. 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/FRX202326816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8949803bf3dc8387bc53a5dd9393c6d41b2328f880d779d13e7afbd4c2c4f21c. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:40:58Z), 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/SGB502337577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc455e27ed1b86315b69009e073e7998892668b4cedb67279204c27d527edecac. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/SGB502360790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87ff3764f0b8a7fbdc674c3ce01ebf145437c68488e97a23b9d749650e41ac1. 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/GXBAV2305527.