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 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 0x9878064b11748dc58feef21856c2b81cc362b2559f477e54a609668dfd1856e3. 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/fc659791-48e6-43a0-9069-69daa49df86c.json and https://artists.proofprofile.net/proofs/artist/fc659791-48e6-43a0-9069-69daa49df86c.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 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 0x0395411f87fb6c010478aaeacefbe2df0c74ffb12b5f1630566f1b980ef3226f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM4DW1871594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9210b1a1ea4687d85994d296c7a0e565d70416432cca2050bd3ceee7c92ba85. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QM4DW1876044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60427bc2afca5607b4e5118ff025437cf4b0dbdca7faf26a59b805ff295f55fc. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/QZES71907708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c7d9fcddbf784171833996de729984eff660c9e9d4471cf4447f45ae0e155f. 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/QZES71907711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d919d243ff8da3b3fdd4e34d6df5518adb3c0e81c490630c4a09c78fae621e. 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/QZES71907714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b7cd2521361aae7509e9f04922222c060feabd11ac69b6eaad624e290dd305. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/QZES71907715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c3e04750f09aa78b6fea9ac7be0e7b6a468bae19f6ab3e608982235b59a0e1. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/QZES71907718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ab0d9d44d7251f8bbddc326ffea7dff3a9bffbb2b04a3e3c427d7f8f8ba8e1. 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/QZHNB2166307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cb6173a972e022e716a23fedc7d2c7e87aadbb1d8ef0a36dcef8e345c8bae5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNWY2230526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b0f26ff81b25e84080c44509b63bedcff81c5093ef028a15d25efeb53b7652. 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/QZMEP2188458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe844536c6efb51dd4e6859c163c116ccc7de042a2c3755c3c862206c5a3b83. 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/QZES92128913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60667febc78df3bbd61acd288b3faac738a18671abe10deacbee8458bf5fdb68. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZNWY2230537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2deed85541c5d802eb3a927521176ef008b4abf276f20447f8958dc5829053da. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZTB32264017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afc4f1d8ac2ddc96e1854cc84098b4ece38c4a3ee9e89b8a52dd26f8de4b173. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZPLR2304063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4380af9b46618b362cf707348a7e81acde66a8e37c361e3e01a0007053bcd283. 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/QZTB92382364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3b354750af6597244184aa04840a62d267154c1d5ccc55f8a016fb27859e90. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/QZK6F2479067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360945a7b3692dbc49c06fe0ed60a28ac4b59165a78a59201bf4df0e6d1a629a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZWFE2443458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eafd121aa042318160161cfe1c660345d41ad9269d449c56f75d0492f10cc2c. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/QZZ792442476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d51f1bfaf925fdd20d72f991dfb76187ad70f8d5081276835643f70e2511309. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZZ7P2439407.
Oneness Vol. II (The Cycle Of The Infinite)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec7572c1acc1b533e14e690b172d8f6fd519467fd493330440e5f360f598a23. 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/QZK6Q2352374.