1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1f0ad778b7b0f7aecb8df41aa93b4f6f51aad7a1ed3142e646fe18ec39dcdf76. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26bfaef2-b4c0-4e75-a8d2-c8c3a5a4cc96.json and https://artists.proofprofile.net/proofs/artist/26bfaef2-b4c0-4e75-a8d2-c8c3a5a4cc96.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 → block OTSBitcoinBlock must exist at that height 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 0xc6250336646129723788a2bba12a6fb134c058e00782e8a1210d8619a7c4977f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/INV161202395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a73cb4766eab3eec71367f15e56de6cc181e66e6ecc08f1da439713cea69355. 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/INV161202396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf520d594a0f81f330bb83be7ca72c2db2c1e9a9ff87bb9d7d6a2ad413ba168e. 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/INV161202397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd7ade0699f825715931ed05b476e9292966c3b3d454b05ae5e85e7cd079f31. 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/INV161202398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587472e91d12e2f7825fd37c85c46bb85cce3219f9273a9c4b1d160daea2c39a. 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/INV161202399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04340434d695c2e4d6ecf720cb6feed40718c29757bedf86f2489796a66fa094. 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/INV161202400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217bdf1efb144cf45be4cd5f435e6897334e8fc0b4dc81cb285c7500818ec928. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/INV161202401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9045f8e04851ac1fd6454689b37d2c205efa51e78b627fd8ce8cbabc92047633. 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/INV161202402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b494fb92f89de3d226fab633332e64634a0f031bcd4f2ab65b6a74333608f96. 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/INV161202403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf105bcac6a0258f6589972c5eece7a37ea4b2d47532b47b22313bae3bafc4867. 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/INV161202404.
Muthaiah Bhagavathars Krithis (Carnatic Classical Vocal)
Apthamithra (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad9bcd2ca0cf76c5d478d744dc5c67e70f8b9a83791ea9535c739d87d73079a. 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/INT131710339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d90a7f73be5df00c8115e304056794e91f32659bcf5c45cfe92877ba4504354. 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/INT131710342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d6b5b6dec6e0198223d5b2ee8cd373cc733427bbe0d78214bba3de2624ed07. 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/INM5B2208959.
Theriyama Unna Kadhalichiten (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9355431601cba1b50423a2a875ef95fe5f4cfc63c5f0fdb02ccc9660ddfd93eb. 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/INV341100182.
Kadhalai Yaradi (From "Thaka Thimi Thaa")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d466c6b93dfa0ff8596180ed7025b44b1bcdf48ca0ade6e27edf87ca9f5329a. 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/INF040500665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbf2aed01387afe16769f42e46a82180025420ffa8486a6f58b301c3caa87df. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INF040500668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566ce14db92b25b13a40491f61ad16ca9c1a687fdba5e1977b9beb07ca37ea73. 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/INF049900232.
Kaadhale Swasam (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a853d75b8b2505e176ea3e97dfecc4f8a56332e1d92c0535bfee0c0dc34c6c. 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/INF040100373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5baafd6ac063c9d14379e35bd4dac4e99b3c055fada2cd1b9ea75568599a400b. 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/INS2V2001025.