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 0x0769490b50d424bd84c7181a2b8586e3d0646a45143c1a081f4da954ef786103. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5315097-7319-4d45-9b96-25d9eb972b34.json and https://artists.proofprofile.net/proofs/artist/a5315097-7319-4d45-9b96-25d9eb972b34.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 0x1cb093b06d1d4b9a506dd9508f0389f6c5083dcca3178ce06c437a4040247991. 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/VG0120000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458463ecd93467df596af59bbd5474419baf417fb503a97ac1066d0273106bd6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/VG0120000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df395ec0e238c09aa1f23ade4952897ea9376e29736a90e5445a574883f4eed. 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/VG0120000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907988da888f57a959cceda7746ea643df285fc7e16679158767af9a9493d991. 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/VG0120000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b33949f3507a7847696e2a39bdea767f23b98e54eb1b214b037bdd66e59ec72. 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/VG0120000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f6f25153faf17c8eeed0215cdb37872eaea23a98a954aafa652a1e9fae25dc. 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/VG0120000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03067a662c099e57cb03964d5b5132b3566fc3270d07b362d7c6de7720e6ed8d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/VG0120000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0530ba1540d378b6b499188c501fa9f659ca0320946b2eac6b0673a6bfdaecb. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/VG0120000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af5082e787d4acc32b085d39f674f717611e422b1e18db491de97983bfb1486. 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/VG0120000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729fd291aae33f49ed701ce4270df65244c6873e5cbcf91f8a35c57627696fcf. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/VG0120000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06099c194e65b2ff2dbd8de3e110a56928f6384585186b0d5b7a9e96dd3232c8. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/VG0120000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfbe8ad0fbc7cc91c88a9452eb72c871363a5b6deb59159bff7766daee066c0. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/VG0120000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcae7bb9207502cc7e4ad0af45a33d9dcc5d3641f46adef5e46e048528123b8e. 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/VG0120000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243d6ecfd08c9197fa74670ac3a8108e023bbd41e7d8d054801a7214a2def115. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/VG0120000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38138faab7fa90353b59186776b0885366c04d3018a7e74cbb1da40d0c64c799. 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/VG0120000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9e4c1914da6b6848402f2007f78fc8c7c7ef355c65a8f36bfcd902b9afe841. 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/VG0120000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bd562d2a66477ee2bdd538d55453ebbd70f02f11c9cd2c02b0b6fcede5e6e1. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/VG0120000071.
Adai Mazhai Kaalam (From "Adai Mazhai Kaalam" Original Soundtrack)
Nila Nila - From "Adai Mazhai Kaalam" Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f99a5c06ebd25d66e4f2cdedff5a81f9571918739a3f0f3d3fe2bca285d5b08. 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/MYPI11201118.
Ittana Thavam - From "Adai Mazhai Kaalam" Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59234b8745166bf820b7f2086713c726c4ce19a63678f1be4d36173aed3742f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MYPI11201119.
Kaathal Kaachal - From "Adai Mazhai Kaalam" Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95285effb591019533e3ec145797af76e4275381775f9b431eeed999cea8436b. 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/MYPI11201120.
Orey Lov’vu - From "Adai Mazhai Kaalam" Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072216c4a89b8ba7ebca5a0f1f7f36ac056dfbdc2fe6179ded00124f482f8915. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/MYPI11201121.
Aarpattam - From "Adai Mazhai Kaalam" Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bcd957150624acc7264fc48e41022c685ae74df461dcc3a0749cd7db41f5faf. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/MYPI11201122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5a2d79ec1a9449ba3504ad3019ddc7409bf1f08e50a1ced5de46aabe677cb3. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/VG0120000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a60835b8c57587a21228aabc382f638b454f35128d174b7abb846765a4aa88. 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/VG0120000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d54527623e19e8dbbf8f309af020fc9a281f175824afff6f1c0abddff04ebe3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/VG0120000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfe1b4c355236be408bd0cdc58cbd26966f14c21334a03118a1b94fedad7d3e. 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/VG0120000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610d68ce609428742f9b183a958928e5c1c64257fbf86d18a689122913129599. 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/VG0120000058.