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 0xd5fd9ae4d6a4c90775b43646da847695875925a1f35cf20d38d35d45b1c8c345. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78879ed2-b1d9-4b8c-bce5-343c6707925e.json and https://artists.proofprofile.net/proofs/artist/78879ed2-b1d9-4b8c-bce5-343c6707925e.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 0x71e6352593e2f436e1f4efbc054a1bc4c8f9056ab1c35fa9110107e9fca0eacd. 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/INR952200400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e4c0ea3717499561a944d66af652a16b07dd21d78b03137c056ddd7eb63fc6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/INR952200412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9f18b2a5c4132fcaec2ff4aa46a184d6010c2725d8c8cefeefecf56b94e579. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/INR952200410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64ccc43196798d6b9789db6a578dc8931bb0f70a78d1d93ddd3644a2fd166a9. 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/INR952200424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75acdaffe646af67f45f36bac69fd69102841e3f95764f0615a4082a9ffd150. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/INR952200420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea2c6be63c75e5d1797b87c68683f33b3ccf1f7218ccfef9b23c2166de65e71. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/INR952200418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20e3b3416768cf40bd101da328ff0b6410df635605df96e37ce69f95fc674e2. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/INR952200419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807e93043d28938dec6667731ed55f8124597154b286358d47b90c005d9cda22. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/INR952200423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd874cc7a416da866cc836e05d366d7ba8bd1eea508ec4ee946ccd108c12c60a9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/INR952200426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb261011b40ca6df6c18da6e0bdb59362bc5cea5569dc525cdbf96e17223a286c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/INR952200444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fec4a89b2125eef2a749755397507ce08357fc0d1afc94fdb71f25a9f5b21b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/INR952300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1361791e644f61b2c7365cb374898cd98c58e70926453f70559b6f6391ed0ff. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:28:42Z), 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/INR952300152.
Katai Sundar Lage (Sadri Devotional Song )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e812f70787caea8407fd4789ad65fa0b2dc91c1166cb0304f06f48e5a6b6d1. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:46:22Z), 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/INR952300247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401be456110786b3030e522de91f04b17505e637a2a9739e17ac714f920bdc49. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/INR952300308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e68b09356e5dbde1c1bc9b8a35478d4ee656b99bf09201c2269311d393fbf7c. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:25:39Z), 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/INR952400134.