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 0x8b0f920549b19015b6696ab31fb0a68483de75889a2d65cd7e32bc33a2571935. 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/82d132f2-377e-45b3-9b50-8f7c30db7e4f.json and https://artists.proofprofile.net/proofs/artist/82d132f2-377e-45b3-9b50-8f7c30db7e4f.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 0xdff5c8b12a5c7fd45b88818b46123b1e3d16989316540f76946d582a78da2253. 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/KRE111800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68042bc380fc023e78f7fef879ae06ee8e7d34d1b65218d184c636f557d886a7. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/KRE111800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5646e2469053690b11c960bd7647dccdea5b7b59cf85a3d676f84f40e100968. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/KRMIM2015904.
Tell Me What You Saw (Original Television Soundtrack), Pt.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d102af220d45dcd1a38da765c5a25bcfc83e3206e42927a36175be44a03443. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/KRMIM2004353.
Tell Me What You Saw 본 대로 말하라 (Original Television Soundtrack), Pt.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a78aec1308bc94a53167455d75e0569801208217e01a9496d29bcd8393ce00. 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/KRMIM2105498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec403e0260b4ce0b1b45c552542c66cd3c97c58c7a95956d39f0d76afa2517c. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/KRMIM2015908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed58c6f74f5614f9384f26751b7af09d86cf1bf25a97230fa201433f7e41fd9. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/KSA002100168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dae323de2b0eac72c8d53daacd16b01996108d71046ae9c9e3cd7981c12465. 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/KRMIM2142157.
Missing: The Other Side 2 (Original Television Soundtrack), Pt.5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70c53b4ef134a6384d42f78961fd80a9f5d5e2971873d733e0d57053c126a42. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/KRMIM2303459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddda713bd096cb807d8d7227413ac6f6f70709cc1530c45b781bb416ac57e411. 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/KRMIM2338031.
My Happy Ending (Original Television Sountrack, Pt. 6)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a3e3db8c8e48be12c0b913b3e3c297b2a17e3e2fc28bfd86b5cd156143ee85. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/KRF262400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3ad47340e044bed8c30bdb46283fbcfeff059afec7704121595217138eab9c. 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/KRMIM2433306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31313e6e1de53fc0056b0853ec0068b5e7285155f0a0ce7732bc5f5a1730e1c8. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/KRMIM2433307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5e17b1d91307a8fa585109ab43a21e26611c3ed436e69a967eb9b336cf875e. 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/KRMIM2433310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199fba9ae23bde4ac1fda5873fee489a796fac2fe3e974cd019f121aae4de281. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/KRMIM2451834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28b3db4aad7e618adab67119b701628493228a98528bfbbc00c7a413f31733f. 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/KSB022500809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cedfb3a8b90f537e4600366e90a7f66176af43c95287ee93a9581bb7a0f154b. 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/KSB022502015.