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 0xe918ca4d6d27d86d21ac13215bd6018ab3560f931fa77d8ce4b7a35fec5224ab. 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/2c3ba49e-c413-46b3-b4d0-2cf9f66a6a0d.json and https://artists.proofprofile.net/proofs/artist/2c3ba49e-c413-46b3-b4d0-2cf9f66a6a0d.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 0x03ae0db280b8b61d8e05b2ec4cef134589091703e19cd39db829af9031cce3f7. 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/USHM81796238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c84358b5885999843d8cdc331e8a2a39c6b341c589c9f12443fe07b184fec4. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USL4Q1752288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ddadb8a552fe855ceda328a76217b535d64b7610d2bdac5b7a9f2368fee639. 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/QZBRF1808193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39edbb63b8bbbba5f59f20b746c5c702f2bc745e732d1112bf1c34e4a3ba933c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZFZ72061429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aeb54bf52b21bd0dd18c9ebb6d231eb0afcf8d0d2499135a77189bc29635cd6. 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/QZGLM2129995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867d335b71895da54909de18effc43a5d88b274db75aabe5e221daff049ad1cb. 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/QZHZ32153851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fba869b85390c75e11e15ba57bdb6bd4bba0e561b2bf5fb282bd6db6f7714b6. 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/QZHZ32153857.
Ignite (feat. Dan Marsala of Story of the Year)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2b2cd6929d56e84a9b43aeab4bb580aab59a2026971d919a0cd2011b062e96. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:10:13Z), 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/QZHZ32153855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69766f4c5d4d1d08ddb86ada8ab6f17b39ee8be82fc866f407f11d1d2b1f9b61. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:36:49Z), 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/QZGLM2164448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0e074a45aed8c7c7f6304d72c0425002bd91359d336de4fd3062b774020337. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZHZ32121947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc41852228b608d69034809be2bfe09043aa0269536b9c5fe30f00f4b8b9b67. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZHZ32153854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470542ce8259e6bc25e46b9fd299f3e5a2c38e8e941598aafac6491e50a7d6c9. 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/QZHZ32153853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92867a7b3f2df63c328bac768ab2bacf563ea3e34434c083af89393212162404. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:09:46Z), 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/QZHZ32153856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efa7b235eb8f7f90615af6b14d9dacd1ec77207b788ec7f9316d441ecd3be0c. 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/QM6N22384671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bea6102f6bafb0a0290389ca152d4ac284110a663cb6fbf1005445467486ed6. 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/QMFME2308505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245784e631f53bb7f425a54d6a657584cc81281a8638fdd688636d0849cef520. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:43:08Z), 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/QMFME2387139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810c776d8fa63bd9319d5d3a30a9c003a0fab6d5564fc0fd930f61be6a0d759d. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZNWY2489491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4449dd6f019f9b3631d969c18b25efd60e615ccedd2309373733ac9e4493dd0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZTB42462200.
Mixtape for the End of the World, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4449dd6f019f9b3631d969c18b25efd60e615ccedd2309373733ac9e4493dd0. 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/QZTB42462200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810c776d8fa63bd9319d5d3a30a9c003a0fab6d5564fc0fd930f61be6a0d759d. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZNWY2489491.