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 0xa6a65af0780e487c187d97ff1a9b88d59e6e9b15de0bf1697bc2a6df4067a842. Chain 2 (Bitcoin): anchored in block 953885 (2026-06-16T04:12:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0bb04e14-4101-4cbc-af9e-aba445225ee1.json and https://artists.proofprofile.net/proofs/artist/0bb04e14-4101-4cbc-af9e-aba445225ee1.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 0x77c2815847a1ed031ef29dbbb28263614729621a9185511856e362b533fb6718. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/MYBV11600001.
Kumeresh Kamalkannan,Sritharan Pusparajan,Datin Sri Shaila V,Neroshen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c31d13b0460b09a73f7fcd366e26aac05970cfbe7e4bac4cec739b7bf190a51. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYBV11600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9511c74649743d9a331c3a94574da7f4d131c63d328cbee5d8b7c4392e4231bd. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/MYBV11600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0ccb3dc413bf64c23778c10422a9483e3b066e5e6eb50815ca364f5441b085. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/MYBV11600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5a8fc3016bf09a226773be09630c7f3c24ff0dc3ee256a013f88df559148af. 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/MYBV11600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d3a826cefbb0697b5d820ac3ea3f06230dec0927056eea8657bbdeac0b3c20. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYKR32010001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea61882a6bcae64a9b1df3c1b942a7c9de20369d56238513e586a25dd7cc8c2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYKR32210012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4486c86d7cb16df8a20ca43a416433d11995605634ab61802d7d833682ed8a3f. 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/MYIB11801212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46968cc594000ec37a3551099eefd669da5d509e1638710cb39ce63eb163d747. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/MYIB11801198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247a02d60ade36004c7e3d6cf978fe8743e412246c17d28e23869d083f1a80a3. 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/MYMA12300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ea09c1f9aef0b8b331754ca2bf59324ae1af4358ce259210c2bf41faecefb0. 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/MYMA12300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08553dc0d30f501710bbc98bd0cdb77e9e7c7b496f6fb0cdf44a1e23de0de8b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/MYMA12300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdf894c8b161543f21e1c000a680600eca893324dbb7f6003daeb0ead7163cd. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/MYMA12300122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869faa9fa9dd675bf6e3c482c881668c7a7f4addefc8fa19a2e9f773b180641d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/MYMA12300124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4021d0d724513cc14e68e26df00160d7d858517eec38942a47eec9ab7d5440. 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/MYMA12300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b88a76fb45660e113d3107bb00ed4a84d6b950cd361117f242bebccd6a48901. 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/MYMA12300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f594c79cefa66d80bf8f41fb164b7a60d0f99a7696cbeb66b7923b6948f1a69. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/MYMA12300067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3f8be64d11cb6563e008ca20a5b875d01b0f508e9e50ecabad33905776a6cb. 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/MYMA12300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c6d4f89f5b2453fb89d127204729528528f41644630ef429bb0d7abac0fa60. 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/MYMA12300071.