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 0x0f5b0425ea048c0bdfab8196071288f1b589ec37b54d7f13f8fa5dd97b3bdef6. 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/d8d6e342-e9eb-441f-b96d-ee6f48131d46.json and https://artists.proofprofile.net/proofs/artist/d8d6e342-e9eb-441f-b96d-ee6f48131d46.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 0xa1ef0bc5bb2608da4149d5133f3640c4c98adeb09f3500c557307bede7773bc5. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/USA2P1406116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6049cf317032e67c99d9d4aab836373cf508a46fd927518deea79d00c84d31d3. 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/USA2P1406117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3f066c44c26f5e793049e062e972f519f18ed2a152339cde602038dd30acc9. 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/USA2P1406119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1dd5434d08ccc79d687b3d6e1a5f8d5183378a03ea42664d8e93f06c6de5d3. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:05:19Z), 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/USA2P1406121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcbd20363003b433d6142c777d7e0be092975f13d00cefc54dde5e047db110e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:30:16Z), 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/USA2P1406122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b6b4c24e64356ec6184a0899a2e0acadea1e877188aabacc09a74d10cfd1c4. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USA2P1406123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e490106145c840d58390cebeee5da317abce5fd62864756cd671fcf423c1eb0. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:47:41Z), 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/KRA340923955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c48e3129ff963b84edfedfcf6691606a5265dcf6e548a79722ddc77c9db2b15. 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/KRRAT1610313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf49f6189cf55b93956ee8b2673b5fc3a24f3d4cc9926555250135482ba58145. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/KRRAT1610306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc87b43a0e8a3964494bc4e83ee84aa6e871f4f2c22db6c380d11583bdcd31b. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/KRRAT1610310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbd99ca4dc9c09fe8090d33f28407b215ba8c67652c0071e3a8d1ab95f210dc. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:24Z), 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/KRRAT1610301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3797b2566c78cc78116a36d3324a67446cc680c9985445b53c396ff22b381832. 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/KRRAT1610312.
Beautiful Rivers and Mountains: The Psychedelic Rock Sound of South Korea's Shin Joong Hyun 1958-1974
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf80596926964f5672aa1a7eda5b4887dd7d1c56984a1bd7da8af0b5b443521e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USDEA1110046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72a7f06b4783364946135b82713c96f7e36f1ac516a15ed4559a1e341370387. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USDEA1110047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5d9829d15eb7be0521456a5a7223085696ca5d2e335502362c6d171d39f10c. 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/USDEA1110031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5c6d9a882773644875c9b7cdbebf98df724bbe5da5a53a8de43aebf6d22da7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USDEA1110035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d006a4fd36c6e89a391b8d75bc2610a90b4d3e3791cc1a5a6c22ef96695f4e. 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/USDEA1110036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ab1f38e178cbcd32f45a5e0d0a7a1747f361410b5ae48ed344af4603267ce3. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/USDEA1110037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b96ccc8fcf80f7ce944b7edfa00b27cdb2a6265af5a3e6f09354f8df9e1cdf8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USDEA1110038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f558d35b96ca32f71f71d6800ebd9448251df0898db1749de1555ad13c667a. 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/USDEA1110039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cb6b3a71d6c161338d0b443f3fa9244fe3ff99991d04e552c98336f9a2549e. 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/USDEA1110040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c558c060d8c90220af004c1982bba8f72a0c0152558a91864799de8f8dec64. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USDEA1110041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcb41215a1922e78805611bd1266503da2a690368e6c71b0dbc63249992e1ae. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USDEA1110042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579c420371156efd6d9d6a735641162b750c2dc45a663606fc0b18e04d4994d2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USDEA1110043.
Hikisin Guitar Melody Light Music Selected Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf71982d9152f74ea20501012be364a97e2ee4b86685dbc1b4586673411649c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRMIM2001604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8751cc52c01816e6e7407079eeb788e2692fef51ca4aec74e0e09870371c36b4. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/KRMIM2001605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50460f08a076346e2b822260bbd9f00234948945c0834613de3a2be53fe30d5. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/KRMIM2001606.