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 0xd6ef3f7ae08761df8c4a654936b5c71be7be9e4cbe506267152825a5ac90c840. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9344101-1ffd-4e04-9a0c-5427cb31f99b.json and https://artists.proofprofile.net/proofs/artist/c9344101-1ffd-4e04-9a0c-5427cb31f99b.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 0xe294468b6208892122a53c008558e9afab2dbd550809089afeec58b9d4e57e41. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/TCAHN2309920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65d64e9efe1f9aeb27517e18e29df385625a1baae5bc4e0ae39f877c64cf29d. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USHM81431634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede7ae6f792ce352323bdc57f8cbe35c89fed1895dfe7539df5a22a5f3dcc08d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PL89A2200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe775af0b62725a70c723480b040d355b990ab772895169adf9f524fc4dcfaa44. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/PL89A2400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbb105715d23af049255595e25c904c7915c646722a8e8d4e64634d4626c1c7. 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/PL89A2400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede7ae6f792ce352323bdc57f8cbe35c89fed1895dfe7539df5a22a5f3dcc08d. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PL89A2200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1d3e190c8d63c84ee7de0dbf9b0f0310322255b23f460e3069b3be2189a891. 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/PL89A2400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8cd119fecd6115f39724763e487c2881df78137e0b700c565a9235f61fd476. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PL89A2400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ed97820e9c583d281d1db978655503ebf85512e682b6ef1ad2052a876963a0. 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/PL89A2400089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaae288062d35bc180175c6ebb970e70528b276d670d308fe48bddd3ca7deb31. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/PL89A2400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ccaae541060b9ab4e1715a0618ee4ee9ff18a14e90684abc94f2423a0bac75. 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/PL89A2400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd3e57543b07ce796c44473e8e5dd3d0f4733ed525ec2bc7863f6b8e1d0d13b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PL89A2400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e0cffc50508d1d4afcecbc9eb26573ae75fbe42b975a1815b9df0ecb4e13ea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PL89A2400093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecc4439f91463ac1bd414e00fb53f1c292d32be8c6c0eeb2d16ff3e32ac9033. 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/PL89A2400094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc42fe997197dcc2064d234feb09a8b489631d12482cbb2fa40d24d58d87b3db. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEQ022011489.
Picking Up the Pieces (B-Sides & Rarities)
Rebel Minded (10 Year Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4723c2066500b63eb192b9ce454b7c7fc78574da2f97eac077a01b9b073b0168. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US7VG2542453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e23a48a4b2f909e103304c0517bf42466aba702b2d5ce560cd2fd7980634167. 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/QZW9L2491922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2b23fe4d9e345f481bdce0dfb3b08cc81bb3fd4982543c8ba06dc0e37109b2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZZ7S2480966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7640ff09236e8cedbbe77d185678a0a755ca5370ca03f56cc3f4cfabf213d90b. 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/USUYG1589237.
Lenguas (feat. DJ Luman & Click Tha Supah LAtin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd4aa4412fc6a3d0b515e856375b60cd262e27ede25077ce0696ef39c800f5e. 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/USUYG1531414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4edfa657f4726460678ff4cd2525357902288de12bdaab5bffb0066ff28627a1. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZWFR2313278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4940438b0ef72cdb97a32af1cc736f8811f0c584b680a9effb2954bf12127c1a. 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/QZQAY2523132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1066289d626f6b626e8e62d1d47e673fd8fa94f1e497f495df4e578c1d755f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZQAY2573908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f67ec99f73ace7be8b70a0be12ac93a0f37597eb4ec17ebf3fbcd0ee0e62dd. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZQAY2540924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7322c53040eeb0c4ab8fa0d3e7424ca176d215b6b35dbf7b3711cf2270974c3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZQAY2545491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2f2321d6cb975cd14a021d2b5c8de427cb5385ab3389b0ebc22d2e64ea4c8e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZQAY2544180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fd247cfa05b1d051c535efdb4b07689560f7df75f1773b63175af6a59ecd32. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZQAY2575312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485bf7291981eba7513f2bd7877b8a9620d92021a50481a21b779ab0664e3b7a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZQAY2594198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeecc4439f91463ac1bd414e00fb53f1c292d32be8c6c0eeb2d16ff3e32ac9033. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PL89A2400094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65d64e9efe1f9aeb27517e18e29df385625a1baae5bc4e0ae39f877c64cf29d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USHM81431634.