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 0x9a889908da50064790941f0062d6f4597c95d545d20d760f7d111d362648dc1a. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75e531f1-f013-43aa-ad7f-2253f9b8fd0e.json and https://artists.proofprofile.net/proofs/artist/75e531f1-f013-43aa-ad7f-2253f9b8fd0e.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 0xb525f51e1242e92e8a106e00c8ecdae61e18d85e9b0584d16b533586647b2557. 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/DEBY72100370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd25128245b3f786328447ab887dcae513339ff0df884dfcf58ad1bb057ab4e. 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/DEBY72100945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeef1da73fbcf5beb277a9750872a43f0c4d21db062853861966d94e9881cb0d. 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/DEBY72000380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108ac7675e6e864a80162383364d99dc50612c1bac35ea20b248bab42f694157. 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/DEBY72000539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb525f51e1242e92e8a106e00c8ecdae61e18d85e9b0584d16b533586647b2557. 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/DEBY72100370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb525f51e1242e92e8a106e00c8ecdae61e18d85e9b0584d16b533586647b2557. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEBY72100370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8579c3fe390a16f103676f11a9ace78eccf4c8a2de2a7c21978db0729c5f70a4. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/DEBY72100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb525f51e1242e92e8a106e00c8ecdae61e18d85e9b0584d16b533586647b2557. 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/DEBY72100370.
Float On [Music Is My Life] / There Is No Reality
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7862cf6f7dffb275feef6ad0b3a7e2d67cc42f6e9a77fb46a463db29e9979901. 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/DEBY72300332.
Float On [Music Is My Life] - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd406f2c1e8a01f9bff3dc9333b16635828cd90a42aebccba285a07acd1ec78cf. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEBY72300262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd25128245b3f786328447ab887dcae513339ff0df884dfcf58ad1bb057ab4e. 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/DEBY72100945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54922bb62085d2afa90abe95e8ef0be87fc15203bab71ab9181d81e392d7cc43. 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/DEBY72100662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70b7efe4b1497f64ba311602ed8adf91220f15858992bffb7cff65d737ed9f4. 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/DEBY72100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a20a97d1e686346aff5df7763ff55a90a38b62ecb60f0cab585ac6a4c688740. 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/GBEH42010073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209190c6e0734937913642d9da2bb482df989e6b1bd8fbd93058065e2786c089. 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/GBEH42010074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e62825bf49de76125ad33c179d3fa01f3f6f0f020d6eaf1e3f34f96d77f649d. 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/GBEH42010077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7381840b63dab752dd3fde271f25d1f25b4f895ee67c96033ff9713af7bd6d5b. 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/GBEH42010081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59088113f6bc9239198d82584f9a8a69d54908ab481c41199b5a823c9b1cd6a7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB0001400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb525f51e1242e92e8a106e00c8ecdae61e18d85e9b0584d16b533586647b2557. 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/DEBY72100370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c7f23968d46a9027514dfcf7359f5f4d5dd25db9816c24094ef8fc2595a6c5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2090908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001f1ac9e6bf66e9daa703b4f82d677c38d02674f5be82b5e397c85cdbc8315a. 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/ITXHA2130017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55de86493ee741ac86f38e2440cfced11c0ea36957e3d208674907a16bc7f90f. 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/DERN41900303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0197ab98777c92f9ed23e877ea1968250ec3b3bcfb77676ffcdcadb0f6164dfc. 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/GBEH42010141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2389efad583055ae73571009377d9574943d9a3fc144f5135414176e0d6ae9. 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/GBEH42010142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f65e2771175dc31fadb5cba27e1188f23721e076972a5b9341f29d0fdf7a87. 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/GBEH42010154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa712c0c9d2e4cd6b60e6f8141e4636ea761701be326f01cd8af77545cb12523d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEBY72100215.