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 0x9fafabf25e749e4b317dccf4bf32b62ef8f96ce69a5bb794f48733508b55a566. 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/fc8d65bf-94be-4f13-ac40-5c2532b8cfb9.json and https://artists.proofprofile.net/proofs/artist/fc8d65bf-94be-4f13-ac40-5c2532b8cfb9.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 0x810c92f99b34705f359215d521f9dad54eb3e6952d78b5aba208e207f88b5198. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRMIM2400480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f664b71ee16145074890a41914e67e60fa8d71820842cf06c490452e6f930a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRMIM2400481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8c37d329f34d279e9a818dea1da6200f4c7f0eda3101f41c50e2ba36dd17f4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRMIM2400482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb73b074a4cbabcd387fc1972a9ea9ccb27787e0c672ad8c768fe6a2e7ba786a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRMIM2400483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4da1db5d85263a801d8763f2338a7b60001c9353309d0f3059def5f00805c13. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPN902301730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95999329faaad2c63277cfa781e361770e0fdef02d91d2c5ffc7c340c8b8bd88. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPN902301740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecca340af4b04fbb1d5d7e489519dbd513c16f612b3ab7fb88e1e3b4d4fdb47. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRMIM2364496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01113bdab31a3136e28b7b72d9d242b6bae38cf11cea00d2ec7eb47564223c7c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRMIM2364497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3374db4bbcc62de8ee12c51dad88bcb0f08153df27b0b7edef4032a99b9152c1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRMIM2364498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf678ae12f697f02d3be86f49a340329e01c1b4210716fe020e222c67a2ac1ac1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRMIM2301540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b3624a76c4acb6a4e055564d52943a6c65bc0ed2470645ed86b65932b51edc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRMIM2301541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12703a890943219ebec7660161481c05ac7ff93e2f6936c83de9efbd8382c23f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRMIM2301542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fa248aa17b533114e64e56a2cc8926d41dc7dcd529da42dde340a58855b3f5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRMIM2242961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2790365a1dac8f0d11ec4a998168c32fb55db4df3140063bb5d98193c3cc226. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRMIM2242962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd71379e8ca49133705019a521f83b29701ea65cb0c5bcdcbdd6aa100960042f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRMIM2242963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61dc2c4f205af7dd6b460c930ebd36ac912fad929e54fb41815f7b27892eb286. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRMIM2242964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b76f0bc70b07151a6b4e0071dc79e83fb8b0a5aa008a68565b37239e6abfac3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/KRMIM2242965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64a37d959dee3c6d466752b1ab2ac3f963c071a2285ae270033a92a94fee46a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/KRMIM2201802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4895a9b3188e730b1630626c18ae64db7f05bf18598c6d58ac14d986a5461411. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRMIM2201803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea361a9ac670d3be8b7d66496ac4fa5f071d0e217e973687a70ea10029a721e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRMIM2201804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1eb64c6ec45cd6b11f9877eef671c3d3e3dec61f3d1b078846f45145cccfa0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRMIM2201805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e4d499a744dcdd108fe01780c53ebf896677d6239df2e84dcdf37d0dc5770f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRMIM2201806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9881b460d37ca56c1e8d9acffb3f0e26dbeb95dea04360916d246475732ad5d3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPN902303300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf347547407ce598335a2cc94d6d063beea1ccfda8c2e120df0ff9bd5882cfa3a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPN902303310.