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 0x90fba7b3e2ac9f8be4da04cc06fcb69e902d89e0442151d1c640e408aa94bf0b. 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/22652075-81cf-44a9-a23b-c73cf42ef26c.json and https://artists.proofprofile.net/proofs/artist/22652075-81cf-44a9-a23b-c73cf42ef26c.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 0x0a98845dcc273ead4743fa5653a2df3aba1789323d42cf20e9b455811b1a9395. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/KRMIM2179196.
Can't wait (Feat. Bassagong, oygli, Paloalto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a520dce092777ce0f85e06946bc4fef821862c529ec97601331ab7e3d3a1cd. 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/KRMIM2232973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a71bb4857be2048bac0e554eaff592c77a5d425c7400f51807ab64968fe9c76. 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/KRMIM2386534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7eae7ff3fc85335f57545dcae600334138162bd1a2713e7b24e8bc620a3d94. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/KRNAR2355085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d45116a6ad1a503575e581f1125569005421eaf9445a2a93211083c2f2cfbc2. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/KRMM02310339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673065f5ea064241bb9a738a9ae5057acdf01d9626f2f61f76c7a2c64df03b51. 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/KRMM02310341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba67511a9c9b27b83bb8380642a3e003090ea5b69bdf8d44482a149bdd3bf13b. 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/KRMM02310342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed65c593efa37dcaf96a2fc29b072cc4f369505c0249856afc1a68f48d74fe4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/KRMIM2440837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d01d9a01b7219d7ba665800dc5b354d0c915f89109ecdf952c1dbf44961a848. 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/KRMIM2440838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ac4051d1d030f4c1284034c5bd3df190f650e0825b34739641e47a41042b09. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/KRMIM2440840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9278683cd25ba69d7b11066084b3f6189909aa9e4ae7ada12b3a2626a4529d. 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/KRMIM2440842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf41875ae730c0111609a604612b621c3e1dd281d23c5ffc8055f26c1a1418f. 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/QZ8BZ2306882.
BLUE CHECK REMIX (Feat. Blase, 365LIT, JUPITER, KHAN, XINSAYNE, Roh Yun Ha, sokodomo, KOALA, Jambino, Lee Young Ji, Chillin Homie, NSW yoon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440de22905269ccabcd1dc3cabab0c7219af68ff0dec05538f9c9c960cd44137. 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/KRMIM2301626.
LIKE WATER REMIX (Feat. Jambino, XINSAYNE, toigo, J'Kyun)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e108a9aa99e0c2be14ccde91f8e1f7317cddad95bcc6cfac5bdeea8e948aa5. 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/KRMIM2301627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30d9ef93f7e961a6fba3c66ac8dedf17a19f78c1f5fa6581bc8fd58ba23e718. 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/KRA492201239.
BINGO (Feat. meenoi, george) (Prod. by Slom)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa564c9e9e20be2f1082635a516c2610e9502f03a8e023447f7344307100f7b87. 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/KRA492201269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e001e7d90a9d75ced17d6eb3a1f0f1df39b4cdf26c03d79f9e6d6f3b97cb7f9. 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/KRA492201297.
Never Better (feat. P-Type, Jambino, DON MALIK, JUSTHIS & P-Type)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29dd3b9bc1dabd3eaa4b2a2bf31d4a04fa42f9f2c54f6a09471b5da54f8d568b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZF452001637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575fc0897abbc55f386a5ac943e431d3c6aa74fd5f314a173cc7e588092081a9. 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/KRA382403869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a3e31196fa8ed4328d6d36fdd2abd9837ec792ecb00ceabae4a914f9fdb746. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/KRA492300009.
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 0xb1c9f7b44e83a8d7542e06b5caf25a62b348f9b1f1aeccd05886dade7d59d29f. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZF452001646.