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 0x34352dad8c7532404c31ce06ba9447293a39b3a0e8e3277155781815ab40e416. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c42be568-5172-48de-a8c9-9a5dc6644a08.json and https://artists.proofprofile.net/proofs/artist/c42be568-5172-48de-a8c9-9a5dc6644a08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Guardia Millenial Fair (from "Chrono Trigger")
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 0xe9059abe889f47219df38555a4d43d49f68561f526dd7b6c947511acf1135fb8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USE831573624.
Dark World (from “The Legend of Zelda: A Link to the Past")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7872abcbf77a52e826b3506aacefdc44f2ff256145c2cab11aa6cb91871657fe. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/USE831573625.
Polka Medley: Gourmet Race (from "Kirby Super Star") / Music A [from "Tetris"] /Ending [from "Super Mario World"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128f7e45d210f93fed83ebd8af0223681698c5052b599e64c07c2d43faf91ba8. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USE831573626.
Gerudo Valley (from "The Legend of Zelda: Ocarina of Time")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a720c57acee28d961d2e694e0c78a5e5b31a2096c9f68dda627dc079a6df98. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USE831573627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4374948ec075b142363b50883248445f57890c32d183b41722e1b9f3dc7d952a. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:58:47Z), 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/USE831573628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72fa9d1264f4ad5511f8af13c7590fd173d6942efd3086a990824feba94f4df. 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/USE831573629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d6e0dac5a51e4bf4980918b5e169eaa0c5c73b33c8100c822d37601f9b3d91. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USE831573631.
Avengers Main Theme (From The Motion Picture "The Avengers")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac0c81899511126e6c952719a23d8096582bff2feed4a45098766b98be63151. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZ22B2036257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab00dc4a61e753a385ef9df4401491a8e539cd43260a6444251d3d65ddd71682. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZ22B2036258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf5f294329e567716f2c9a946f1d953a20b75bfd7e50d5c884c318f15974b51. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZ22B2036259.
Fiddle de Chocobo Live at Alfredo & Amy's House (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7355512aaa0d40e78b6b7c28930b777ebbcdee6c009170eaac848f76ed78ff. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZ22B2036261.
Guile's Theme (From "Street Fighter II")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd168ec9aa3a1dd9b6009fe214e75a54cd8dd7d752a2d7ff4ce46fd3c7a01d479. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZ22B2036262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe574339a3df960ba9f0cc4a3a427b6e08d1fb5cf26cb916b3faf6feda0db1e34. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZ22B2036263.
Let The Battle Begin (From "Final Final VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d405d4ae5f18806752170ccebbaf188790add9cb8cb5565004f091189adaea1. 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/QZ22B2036264.
The Throne Room (From The Motion Picture "Star Wars - A New Hope")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44d7a7f835e069fafd35c2c641fa57c443409f39f1d01cf0e94c0416cad33a2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZ22B2036266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5652002f1eaaa468d662868909f5b5ab74bb4e9cd3a89e31692da2add3764f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ22B2036270.
Chrono Trigger Main Theme (From "Chrono Trigger")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3badc5d6e6db8d290201ec5ec856b1d347c38d4714dc9ee66fbfceaa4201e3e. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:11:01Z), 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/QZ22B2036267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ca3a5f77346f691b2fb8ef226acd974d77486b8e3459077c57e8c98af0f261. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZ22B2088174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff98633c0d33780b2de6492c68600d0e3d51abbd6c0945a123e75b6ee8618b9. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZ22B2088175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d77002a59c7b826ad0aef4699074b4c511c349a3ba9a165dfbd1f95fd85b0c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:00:33Z), 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/QZ22B2088176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f6bf0d802f88e50dade7e4a4d9db59a32ae31cfdbc5138429cb6e59d3f4eec. 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/QZGWX2206053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c9ae108f7a86d547ad9ecea1a2ba684dd8f13906820e28c83cb0d89e03b926. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZGWX2206055.
Knights of Cydonia - Mariachi Version ft. Dr. Daniel Ortiz Ph.D & Vince Anthony
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe202675b14d28de1aaa6b5e79155d1e520ac9c4f5f4c50d7a5595eb3e687fff8. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:00:40Z), 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/QZGWX2206064.
Legend of Zelda Main Theme (Mariachi Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4299d3135dd62ef8f3a620c1ca89f7439b9d468a56909e6c9f329629163eb336. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:44:55Z), 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/QZPJ32114863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa01537bd7bc743004060e452feda583aefb9a24b2b08049188b341d7515306. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZPJ32114864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b62895f681a95f9052cd72d91c72f8e9f0c506660680edd4290416534803ebe. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZPJ32114865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064b208c4519ef32187f0af86f39dc109831f9fecf8363f2bb0776ab5c7575e4. 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/QZPJ32114866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5bcbb74f38f2e6a6bfe903b2812fc772f595d1bbf25bbde8fe9a5db0d96a9a. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:42:01Z), 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/QZPJ32114868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa803262622f22992013ffb7019acd4f9a22473383395c5bed3d5061067160611. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:23:42Z), 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/QZPJ32114869.
Dragon Roost Island (Redux Mariachi Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd7bdcc3280280731369104699000726e4460ad0123d3bfd6101092d7fb224c. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:05:51Z), 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/QZPJ32114870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca358f50b3f2fe2ca7f581d68103ac58a8ba6bd6b8520f550f583672429598c. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:44:02Z), 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/QZPJ32114871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf90b29b80051b33d98eb2778fda2b6cbd48ce3205c0b07e37c5253cd5df942. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:54:01Z), 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/QZPJ32114872.