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 0x759be5c7f840fa8fe72fbe1025a90cf80525a9917b4819b1b087ed18d12d0a32. 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/a0b3ca5a-ac96-4739-b900-3143fe251225.json and https://artists.proofprofile.net/proofs/artist/a0b3ca5a-ac96-4739-b900-3143fe251225.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 0x4fb86e68869343286a900c89ea2f5b81f3b714cec54e7a7e76d06480b6fdc29a. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRA381209878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde6fdcd84d4da083faba01876d13f6fb29108d2a5ba785d55411396962d9290. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/KRA381210971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811ba72053f46325a711dbfd590262ff8d89ef3c0d4abd00a89de1d36ea88240. 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/KRA381210976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf3870df5119f5cb5ed8c4a8b7fbdda828950d9718333c4e8abfac8242cff83. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/KRA381210978.
Hollow Season (Feat. INE, C JAMM, YUNHWAY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880405815aae26868551640c5f5dc27c0a8e574fa646e40aa2b3d19e066478c3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/KRA382204436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f34ec969654982edae2c54cbf782ef8b02d7c633c3972a64a34e1b05dbe208. 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/KRA351507475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f2e584663690a8f816dd20b8101662f1ef9276aa203546dac60d1381c246e1. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/KRA381209909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17f42d04876b9881b2056965ec7997a71937e3139326238b65eb7dd6568af9f. 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/KRA382301490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5315ada22a29d8daa8ec1d04fae8e58908b670f0f80068e267d5b8f114a16cd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/KRA382302293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7277a7479a17d8837cffac97656dddc55e32277ace21cf338cbafc532b99cdd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRA382302294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bffe6620c6f28ae2e538d7b69b7acf07d04025ca8c494731bda57e42f501782. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRA382400781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab386d50780caf1d2ee8fb38fbb90331317861b4315bae980ea760a66be7f1c8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRB462400874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0d9e4ad17469947a530c7bdf8752ac2b80786fd8ee17b06cb0c7185515f460. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KSA002401192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e7d040c3bee1b3aa40c200676c16e4f1e9c3315ee23c0f633d5c7db8bfcf7a. 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/KRMIM2453769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88cde8ca550d2012b3e989e84717f44f1c7aa1ec255f8bfb870a7c6d394236f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/KRA382302299.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e499f9002de51365a5a5c9a8e71f72c711221bcc56dc7c2ae142cab60caa5c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/KRA382302288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97869750bbf8314ab1746dbc9fd2994f5058483d58f7e9b55e7f8cb5533ef07a. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/KRA382302297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aebac6997ab1f852b225f69ae0272dfd82d0d74217fae4f44524171242788d5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/KRA382302301.
Talk Money SUGAR Mix (Prod. tuna., hyeminsong, mil house)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7d1b79fba9ae32c75e84147ce800a435d92d87c0628b6c71dd1179e92c19aa. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/KRA382400782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a674123fa9b2be69ba62a031ab25c6f94758d47a4f9b09eaf2b92a9177270a. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/KRMIM2222813.