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 0x34f7ba757c15108b94790c81f8c46ef40b05720eb5a8335a12864eb853307aca. 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/5e014860-c816-42b8-82c7-c0cc66520ea1.json and https://artists.proofprofile.net/proofs/artist/5e014860-c816-42b8-82c7-c0cc66520ea1.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 0x5d4ab71b11e6186d2a3c68220dea1e548052b964613ce7ba990ba38a6c897bbc. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/JPSR08817430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7399ad11d735056385edf45085103722e163c942512ad94e64d97927b05bd6. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/JPJ900201460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b64a9e67b74018f586010d43f52ce97f2d9f3c2bef8f0b364d624ed54675a91. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/JPZ921407744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267b629a58e46612027290efc4e6496bc1666c479ba3d8462c3b10621a13c563. 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/JPZ921407747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8213d4edddccfc932c8532c0de114f47159f6a3f410675ad4ed84ff0046241c7. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/JPZ921407750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2318d1b000ebcf5f36da684efb2799d68767dc77e3028385a9ebf4260ca353ff. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T05:08:14Z), 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/JPZ921609938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c1bbc1f3b7f8500ac8e4f700a48236ca6e40a213ce41547876f708527e4890. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T05:00:13Z), 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/JPZ921609943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5149d025a0fb8eed2020cac2d851143db9ceb254ba29ed6681fdf209990cf5b1. 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/JPZ921609946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe104c6ff51d000e73af44b6726bf90b786d233da19be67e7e0b0cea4da9bfdd3. 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/JPW261900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284e1de5390e34860deaba6789af247886d5d2a5efd280e2b8704b362134fdca. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/JPW261900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880babc27c2b147255be01a28557ee3f39820778ff5f4b7b712fc26eea13758f. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPW261900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45aa578550f729ea0e90ae0e3d41e024075ea77731dbea89fdd284e475822e7. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/JPW261900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5547d3a2c1e4aadc1ce513c92342760ee5a2ccfed7085210507b98c581a47174. 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/JPW261900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c58fe6902c957a6dca84213421bc8730558f8a13a184cbacd9bb4f503d1b934. 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/JPW262000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f75b4f17eaff6035830bc9b89285243161fd3d3e3f50d780baaf0fc00ae637d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:29:53Z), 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/JPW262000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0397d0cd048ac40ecc318d72054a1af56fcce5cfcc53cd6738d79991675acf62. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/JPW262000046.
A Timeless Road 時のないみち 〜Remastered Edition〜
A Promised Movement ~ Remastered Edition ~