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 0xbb6b8e41487967e3c8a6d263d76548e7c683cb7c176d0dec669f021919bc90b0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acf87cbf-638c-419d-9322-909bead566f5.json and https://artists.proofprofile.net/proofs/artist/acf87cbf-638c-419d-9322-909bead566f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ipiano lase thekwini (Instrumental Version)
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 0x53538f10262a46302e31c32994b71d628afe44ed80649a05b08901895a01212a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZAC012301472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb460a951df29e04d8dd413a6f6b63dd359dd783a8311a87932406eecdee57204. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAUM72301064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17f6e2705a1f48a618f76593b48e163a39491de74ce80f9b5ff860d4c769673. 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/ZAUM72301065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3232878c5c58be46d5a42ff34cadacde9c9ac4bd6d7c5cc5a400da31f142f8e9. 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/ZAUM72400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5539cb61afbf8e6e0576457387589a8f2d25fb15c68375351faafe6936c8ac31. 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/ZAUM72400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122f02e932847c163bfa362265a5e7925e5657f8fe21b5a04348c6fa3e6dd0e5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZAC012301121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8cb75e17a851154e628e77b98bb5a680754568c4b32ccee1e0b8590fa90dec. 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/ZAC012301122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd935b98bdf1f3626d85511c49ff8574c9c83f1578a842268d8e04cf29c329aa0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZAC012300858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e232a0d1f04daafb76e371310d84b2977e432872d2474c13a4345130839e06d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ZAC012301128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e277da52753f516a16f54d35c3c08ed0e403d77ced0dbc9717ba1f92073f35. 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/ZAC012301129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789b57af2f60b60e1b86e158cfe0229199a48e5d647d130bbe99b2b08cd64d70. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/ZAC012301130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd8e6348f6497bc67c4150fb3fe7562f3e6704c7c72b5ed3c2c5df969667055. 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/ZAC012301131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2eea097d38fcc8fc61c07b8db6bf77222332b4bfcb8dbe4ef48455b33c8c466. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ZAC012301133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f263f71ce16812da666072eafcda838d1af6f89eb258eaf9a87ec41c9462916. 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/ZAC012301134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79b2efa6eb65a9533086c5e31644510f5fb395cbe7a481360d2133487d04827. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/ZAC012301135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a80ba9619d72cd899163e2068012fea4b17faf381dc3d9597037ea8b8d031e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ZAC012301139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992b02e08d85261aff39c2f0a3f9efd5a4ec56bf323b06165194ab9751087e46. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T19:02:30Z), 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/ZAC012301140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431346bf9d5c5904bf7fc1cbcf00f8325a3d74e0074bacceb3c0092e5d8f673f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZAC012301136.
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 0xe3ae7ffa2a66fadf3166a28e93c9b0623f906b04060987bb6c3e24f2add39cf6. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ZAC012301138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9797957cee2cb5ef5a95868db97617bdab88cca2788320aa414506f0a6de81f9. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ZAC012301143.