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 0x07c952cca1dfcc7d4eaa4c2b897bfc47138ec82ef1aebd26bdc949de59557328. 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/6e00a3fe-643d-44c3-83e6-13fe1ca86283.json and https://artists.proofprofile.net/proofs/artist/6e00a3fe-643d-44c3-83e6-13fe1ca86283.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 0xeef949ac4ae442acffb516fb49184162d24ae088efe845a16c4f44ce2d195011. 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/INS3O1800049.
Bawshonto Dekeche Amake (From "Aamar Boss")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b950f27d2fe54594ba114577a5386c93054719157af631d2bd31ce337da306. 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/INT132500161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bb6920936dfd9baf3609cd4a527bed62ca4839e1b1854223b00d31d15f0c34. 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/FR2X42580823.
Baiya Jao Majhi (From "Pataligunjer Putul Khela")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6c6d3b529e97247f9329e8d3c31127581272a5cfa2d53d3fb424ea357a710c. 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/INJ722300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685510611b3ef442fa0df7e826a8738bc630487ad2e5f8f3393c5877cd0fcb4b. 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/INS182402642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8fb5f5e140344ea904453928de1c619b24ddb99ad364214acc3aec6b393e00. 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/INS182302151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2acbb5ff8a416122752654417adaf7370657c20c7dd5cea5d80be4e020a19bc. 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/DGA082347578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e786955a639e69d3529c8ed691aabfbeedd1ecba919284125313046d659125. 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/INZ031412612.
Aay Khuku Aay (Original Motion Picture Soundtrack)
Ek Dui Teen (Ek Dui Teen - Horror Stories)
Home Shanti Home (From "Posto") - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6991289480c49d4df24cb5aa9c288d2faf283469ac33a3cf53dffb1b818a601c. 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/INS3O1800081.
Borbaad (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084b1fa66dac7ebd02ddd377ba1e26406ba3523f9f0157e1d28bd0c8942baf4d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INS2X1400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd02fb9f1767539d575a4a36bc3ff84a5761ad68c8aa6f0085337825709c6997. 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/INS2X1400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dd50bc5323f14b556f7eac16089e9dfb0121608d65d140e61bceeb78667b3f. 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/INS231419296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce20c39248245114ea5c0763dbc36e1b2a6edd07d376f1ba5c40250e0f9ed845. 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/INS2X2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2300c132869f3efdb72ae72aae0f2855fc89159fb809cb6c22edc8b9a4d2a9b6. 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/INS2X2201010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd30d3a391da4e6608c175e288d75b7a44dd0b77447688ea8d4e589865982f6. 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/INS2X1900404.
Saajna-Female (From "Bojhena Shey Bojhena")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019bb51fcb39597808a17921d9580fe0c8ddb1330fdbb12dfb7c32a7abf5e72d. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/INS2X1301005.
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