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 0xbb05cf1e8bd9da8b605f805d3f8bc6a6c00d1677f220df05c287aa2957d63ba6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6217899a-52db-444f-93ca-461a7883e1a0.json and https://artists.proofprofile.net/proofs/artist/6217899a-52db-444f-93ca-461a7883e1a0.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 0x057ddabcc7f4b94cb68c94a1d5cfebcafded22724cb0a4138cf51ca85557418c. 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/USX9P0904398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e687551510d036687eb5dab9b8f9b40fd6473a5f4fa846870fc071ad0ec2ac. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/USX9P0904399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68dcdec2b866bb5a6250d25bd83023e07aaa5ee576c9d2d894d661684c06077. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USHM21098739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380b5da68b3ecc69aac05bb3958194b88df9eabbefbd3b051edcd8cec9ea9ec4. 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/USCGJ1273180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d83de8c4a84736276ef7f50401fb4ddd90a6d0ebd02d164d11084ee1af59a5b. 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/TCABX1498427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768b79ac3233caf0b2b466ace2572246f46c737276733f9d2da3be1ecf2be602. 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/TCADC1763739.
Give Me All Your Love (feat. Preston Lee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12128baf5a6ff9dce114a9d2bb1d3d04416a5b8fcafc1130e49e56f4cd2608c. 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/TCADC1763752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e1874f9fb6df38f65de005477c1a9d82e2445c27cc4ba510b488e13bbe1c03. 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/TCADC1763754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fd1d875b8aa7757cdf12d948051c96d7b803777737d54a25f08517fb98c815. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCADC1763756.
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 0x499aeb845a92d0f8202b4f7e95935abe6d92183c8b038a2245a388b6e8b4d7e6. 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/TCADC1763759.
Give Me All Your Dub (feat. Preston Lee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ccbf7f4bcb0cb82db2060a6bc89d2cf6abf824dd68ab84c6e0fe345e17d00d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TCADC1763779.
77 Jefferson, Josh Heinrichs, and SkillinJah (Live at Sugarshack Sessions)
Rocksteady - Live at Sugarshack Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f2f6c90e02f8d3c6b0aa02a01c0c7a9c0e0a8e3e907f3b7c8551b5201a19fb. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/GBWUL2547243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7803f6149bce169aefdb8e58e587d32fd681524c4c222a2cb7b4dbbe1ae71e3d. 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/GBWUL2547249.
Puff Herbs - Live at Sugarshack Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f712e4451d0302930f5b370b5038fa0603087d174df4c52042a324ba92fa48. 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/GBWUL2547253.
These Days - Live at Sugarshack Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbeedcb9d107462c14a6c7b4aff88fc5b299a7d2a8a09f1ff6df8968bc4d1f01. 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/GBWUL2547257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3780f2db52dfe70c42a5f93fd5fbbb7762e939b2b5fe3d4a494dca2f928098af. 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/TCACF1521742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c95c2d939befac9afa8f572a07cb9a6e731295ada32d28f368f7200583c32f0. 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/USDY41886194.
Red Light (feat. 77 Jefferson & Zack Mufasa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0b0d794283d3cf826f467ebd7b9a59c44d8e81e8c5c390c90e24d7d97f2182. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USDY41610614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3df354febe1dd29b9b88496574423446015cf2a11282f23acd54bf8b6787351. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:20:07Z), 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/TCACK1522672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6047d4d67b246e50c8d89c6654fb1a16a3be9c74a92d914112764b70474946db. 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/QMGD71500107.
Captain (feat. E.N Young & 77 Jefferson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fb31082875b5b97ad09e460735b005cc5f74d33c3954f5fbed0014fff48703. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USA2P1428048.