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 0x21145a5a6ee88e3197da8bf7ad5615abab9ba1e1030bad8c12dc26c324249734. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e31a9da-7f32-4835-888c-f63fa89d82a4.json and https://artists.proofprofile.net/proofs/artist/8e31a9da-7f32-4835-888c-f63fa89d82a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ChuChu TV Tamil Rhymes & Songs for Children, Vol. 1
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 0x8f43f55beb51851c2f360766d390188d90582ee5cd176f13b9edc3b196a67ec6. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAFE2013103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5a316b98832216a4a62ce463e102283ca51351b749a5f947201efdce1e4765. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAFE2013104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e8f10caef5381704139067a80b15cddc3b3118db4e9a3ce5a4e2125db0f21d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:34:16Z), 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/TCAFE2013085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6315958f7090dd96bffca9d57b7e78c6b9e46375e2db2c3db4a803eb0e1ac864. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:34:38Z), 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/TCAFE2013087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08dbbb600da2662963e21797b624c206c304d4551f51f45ee66e5b75f90162b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAFE2013105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21327666b3c53f83ac0035dbb1a117b3370c30a904bbce9bc3849d85d1e19789. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:58:20Z), 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/TCAFE2013088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48818e72139aa0d2ad7221335faacfe5915f251ee6b2db15989ba8d978e6b60a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAFE2013091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d78352ffc872743ce944f919bca61435133b36d4617e7d61ce3c7c07ad1553b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCAFE2013109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965889a921d823d9b1ae8dd6e1d4bd7ddf89284044cf3c6dcb44cca9a38c56bd. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:23:33Z), 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/TCAFE2013101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7c42c4f511c5e689ccf79f84d9bdf159bf0479041c997a644cd033c588cc2f. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/TCAFE2013093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a8bbf3be373cc056ccf80f162fa9b220b90b2c8a985e51ce627cb5d09bd597. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAFE2013094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0b727416975d4c8ab0bb21e6fa0360dfeecd8c3005723ae33ab953166adce5. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:46:26Z), 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/TCAFE2013095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71846c0d3fa890e8959ce06a4db4472679e86011584a532299aa33a164886091. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:32:18Z), 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/TCAFE2013096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78400ec237d7148d08255e2733c1cb3d92a5a5d9f1c649285a1e2626b99b496. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:25:34Z), 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/TCAFE2013106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a2636d16866202c4160a1adfb7992c8e590b2476cd48853e3fa432a43446e6. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/TCAFE2013083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722fc503eeb9a76421c5965e507cc4f673e4c9f8be68d2790041c6d0abf7943b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAFE2013124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fc1ae940458dcf89fd1a45e101da6cf4612cf8491434a8a2ddd93a4b98b69a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:05:49Z), 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/TCAFE2013132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfce4ae37014a202d818a7049415e92c54de17a1f44e09ee26229e0ad1bb01b9. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCAFE2013136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeac1ce0ed4157e81eccc1468c4dc8678c3f880eeb4dbefb05baad9551765cac. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMFME2336421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3f79e15d37a21122ca664264eb63def9743e3088bbb40b0beb4245367a79a0. 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/QMFME2336129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280bfd739ff7cd9ad351e5211eadc8d15ed15fb5056335f993b9ea8d35aca2f1. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QMFME2385156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8661bcd555a545e6782f823a720ec492dc4f78aceb832fcac96747e182ba75ca. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QMFME2382581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824814bd2c736bd74c115b1582f0986705256fe67b87cccb5171c991b069a075. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QMFME2382630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371d7cf5061a08eabf964107f5abe6ab4e61a6431bb88afeab03241ef5a4a46a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:27:45Z), 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/QMFME2382588.
Urulaikizhangu Chellakutty (Aaloo Kachaloo)
Thatha Thatha Paati Paati (Johny Johny Yes Papa Grandparents)
Ezhundhiru Kanne Ezhundhiru (Yes Yes Wake Up)
Pal Thulakka Vendam (No No Brush My Teeth)
Bommaikku Ooh Ooh (Boo Boo Song 2 with Toys)
Paapavukku Udambu Mudiyala (Baby is Sick)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bba775fa6e7357516c7b44a3a2ea7b2021144984ed62e7cbfa30d8e8a060aa. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM4TW2441187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d944ab89db9e30e0cffa7e1005f03bbe937c2ff912385262cfc3ddc01f39df. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QM4TW2441206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71c60527c6b677b3c437dc706e16310dfbe9673b61b76c74860f1b9c11582f5. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QM4TW2446392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92951ce0d9cbf84b7aa769dbcfc9d64c3a14d5b50f5d12f4f184742ea3275c7b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QM4TW2446426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa266486fab5a0536527ce07799103c95e228dcb34456a77e11f03fb803dddebf. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM4TW2446529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee75f4f1cbe510dd300dc58fcce06b82971854cac4c1be87c7533064694fb86. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM4TW2446723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40da37041a48e2ca952eb39a16fe16bae9423777227e1be9cf937094f9b0854f. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:18:51Z), 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/QM4TW2446745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2e26bc653a912e6b5d9ac7750e360f6d408d8fda255c310e3752c3aedd75cb. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:35:33Z), 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/QM4TW2446739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3d537fcddb3abc4e53536778d94b260ebd7d84ddebe175b8d485afbcaccd54. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:24:00Z), 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/QM4TW2446803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54266bbef0b3678082a27934c2a11bc11b8783a5a3f7fae07f99c93ee41244e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:23:38Z), 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/QMFME2435930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5692884aae34b0f8f0fe6620733179b4aa96d50f6bef2d095a29de7b0d4282. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM4TW2533620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a51d79064963e2db8584580632c09be799889927acaa157fbe52c5f5c20dd7a. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QM6MZ2593274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb58a7380f9934d7593d702988c331ad192eb7f0bfdb56beb3f23a99707c0b3. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:47:11Z), 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/QM6MZ2593304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd06ac045d0f7e78a73f2cffa451b375cf6f92ef914300fd16e3ce4d853432f3. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QM6MZ2593317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93eb84b8f8792f10710dfede0822bdb1a96718e8b8b8750d281d28a0b76c3f36. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMDA72525802.
Naanga Kaatukku Porom - Going to the Forest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5953b524b711dbfe317fd3a0d799f03d1e576044ef517dd7564f7a25de1abc0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QMDA72594060.