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 0xc00f9c99eae62ead95e1c05ce846dd75e2d10397e8d0b077da6145dbef27d6c9. 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/f89c08bf-8a6f-4321-bc8e-4505c9aab6a2.json and https://artists.proofprofile.net/proofs/artist/f89c08bf-8a6f-4321-bc8e-4505c9aab6a2.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 0x3a5f37f757d79f331d0561578ac2d0d501fc20502c6d1a8a48cfb95120bd1f15. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRMIM2335010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2ca24e341cc7884557ae06d76f9f913906b827e58a6d97840da46124d947da. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/KRMIM2359983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc413bd33f96a4dbbf12f2aa72662bd78f5222f2fc68a7c2a31d9d3c87010810a. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:44:18Z), 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/KRNAR2320988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea13c676e88bd52e4937809f61fc533a0e293618fdba35b50072388d618487c. 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/KRNAR2320989.
거룩하신 전능의 주 You Are Holy (Korean Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0957b61b43bf674f404cc33c38281669f849b4918cb74778b10e5cb2a52706. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/KRNAR2341118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb947a55979283e81ff202004eedcf77d3b8099d2a0d2deb1b05480d5d0515c76. 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/KRMIM2420079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2690698cc475bdeb880b13f58fd3ec0e01bd0c1af9170a719a64390b7d694f0a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRF632401896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148c2fa9b9324667ae10514ae463e9414a26df0b4a3695ce4d3f9a7a022dbf35. 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/KRF632401897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd053ed2e3581a65221adc241d5fdca7b957662451f47f25b6fb72ad29b637578. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/KRF632404645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e06171a27cf539d84bab9f85857cd8c43ea10cd8af716c76325154422557dc1. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/KRF632404647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cfc425417f90b90c67bb4a2d9d8d1be4ab7ee3008977d949ee869b05a97d1b. 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/KRF632405687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132428a6ba7ff76f749b5243a128d9c9b6a118fa9aa7c23629ccfa628ff17e14. 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/KRF632407933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6c068adf54c7fc3d9639c84de42cad30068bbfb5dffdd0b564603a4a486c4c. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:39:06Z), 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/KRF632408392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0ee1f8da35bed849fea4ec39b6130be0e511a3ad0f67f7a438514d610fe093. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/KRF632502483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271adcb6406ab218f29fcd6050a004ba99c8a0c03b7ff50c671c5f0ed8c5d2a7. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:32:27Z), 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/KRF632506982.