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 0x6fb5fb66f72b3857494bc900b3296a3304bee89e9b9686be2cb4157f84a03301. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50811159-e415-4520-8ef9-89721f17ca0a.json and https://artists.proofprofile.net/proofs/artist/50811159-e415-4520-8ef9-89721f17ca0a.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 0xf18f642bfd5d6245eb7abfb33b60af9885e302eaa734ef88660765e70ca389da. 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/KRB471402816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d7c2b85a4e4c831803a3130d3c31d32b8a1c6c6eedfd14eef67e9b166060f4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRB471402820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190587679ce433dcf2b21b184839434d7a9894e5c6fd054f79e59493e8a233b2. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:45:19Z), 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/KRB471402842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235caf669be1afcdd07d4fa709fa6c61afd924381e92501344f642b552ec8512. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRB471402849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e20c20ab1e711e782f4447aa04be671e3243b4a714fc9e1d13f2fee0ea7079a. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/KRB471402852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7613f3cee4b772607fad1f27080daa21309ae94003579c009c54682a7544c670. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/KRB471402855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50347089b626c82149359e1bd9613d45429a7777671888ec81e4153a490669a8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:07:16Z), 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/KRB471402861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6badedbfa505d8139555fc28201b603bc30e8ebed4ecd54884f74895bd8ee47c. 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/KRB472201799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b6b08990048748704699143828775eeb03df7ae92c88149f984413b79bde3f. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/KRB471402877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2353b34c7cd932483aa64b49902690349ef3102af52cf3367f7ab256582b51. 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/KRB471402885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ee151d79e4a43e271676170e37f9343dd6a9592f55d845fc59dd1e5a7aaefb. 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/KRB471402888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b2e14592c2fbb3a1892d21fd61b52c45ada03113db8719eadba6d4be9d4e7e. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/KRB471402889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3b2b37e5c5c213937fecdf2506c0fd6193446b1b31aeb55a5db150418445d7. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/KRB472201669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd35ebb07944ac4e3b97847a9bb5670e1c94cb8bd50fb5bef148a6aca9d8db9d. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:21:28Z), 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/KRB472201676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb759b4e546a4a9a0e7c6418e94b1417a61a82b4f729f08b6b1dab77c953ff3e6. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/KRB471402902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c80f55e3c37cc822eb4318c72afead5272cee5a5b3cbc99a8dd22ce7829b43. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/KRB472201630.
Hello Schoolgirl (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7459846f5eef6ee657cf94e0ef2b211be94fdb7734b277ff79f807caac82cec. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/KRB471402831.
26년 (Original Motion Picture Soundtrack)
청담동 앨리스 (Original Television Soundtrack) Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1f749387d2a4a1131ee1e2151a4161b38f38da885777f2d727f517839ce50d. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:00:42Z), 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/KRB471400358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7583d305c720264ae4a3d2f3a31fa70571a6866593b4571609efdb8a86873ddc. 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/KRA381704476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f19f24c1795df1f3a5b454fc1ca83b3bfe6f337e5c5d4a70d3df0940157cc7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRB471901032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9605e0aabff49cba3fd8003b73e728df46f83facd190e4ec164d816b22d451e2. 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/KRB471901297.