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 0x5eed45d85888ca2b5c6c4187571d6b273d6e8887ae7f9cc8284af7bb0948ed76. 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/f0ff03cd-5547-4ba1-87a8-724702001bef.json and https://artists.proofprofile.net/proofs/artist/f0ff03cd-5547-4ba1-87a8-724702001bef.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 0x637321a33b0049fd0afcaf26a426f9ad3587f057baddabedce515286d5c9cd60. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USA2P1463665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719b0084981852c8103313e89f2491f602098e9138de2a28ea738d97f9956548. 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/QM2PV1649319.
We Got Tittays in the Building (feat. Clayton English & Chico Bean)
It's Gone Be DC & Karlous & Chico & Clayton (feat. Clayton English, Chico Bean & Darren Brand)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce65b8f9a4f33be8332d9a80bda29571763f4ab1d3b6f89f57c9e60ae9af5941. 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/TCADS1889595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33b47f13471db04bc3426a6ceaa1db001239fdf0df29e4b23a0f98f28b066d4. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/TCADS1889599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423132da631098e83860675f2c124cab8897a6835dde78a4ca1db86893a78d46. 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/TCADS1889606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692fa8a5e67bfb020fe4141261c02d45bc4ab85f2b6c712ee06410bf78782884. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCADS1889612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16319a80d2ddaff09b61a1308c889b8b07249d94dbe2b20307b669a12ef28097. 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/QZ4JJ1862329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b27720b06c5394301f948243457e7af382fe50952c93149ffb5b432b8ad9f2. 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/QZ4JJ1862330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b57799741a9d270f25a321ca3043f08263eab5e03e237423c2d7300b5362e44. 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/QZ4JJ1862334.
The Black Wall Street Comedy Special Live in Tulsa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d92d808017cb33c77a3c19d7ac6171fa4b77d4513921beda6f39c0fb825103. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM24S2009223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553d247683af59f7fbb3709867e67e05d9030f9daece7d0ff8f84f21d8aaa2e8. 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/NLRD52012327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7cfdbe1629661f0787a65a03d53d149aeaf4f9ceae41f548c1dd0d1a058744. 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/NLRD52012328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1b7094d3d675dea32e29de8c1026f992f43b5090d98479c5b9ad13614eaa7e. 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/QZNWT2036777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d57a4902d38defc6e9546604a095beaf23ec5d03dcca235bfe739bcfdf73509. 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/QZNWT2036785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f54c3580980eb0fe3feb006008eb348e315530c26ce0533afc99009b4137e9. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:07:10Z), 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/NLRD52017759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f54c3580980eb0fe3feb006008eb348e315530c26ce0533afc99009b4137e9. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/NLRD52017759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e812bd190616f55aca73323d747a9fa1af603c49e0d648236dd31e4e6a2e3b6. 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/QZL382461851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e177ba2451e2048f575914ce76de4f9f3d55cd88831fba7edd1d9811a788fa8. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZ4JX2361692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac62f6e25e131c947e85064937154964f352f9b208f1d09b6080bfc878d515c. 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/USQY51773092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc831c2d80e327459a11ab7a77a95967ab66af232b7d61b21a5dc8d26975464. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/USUYG1057567.
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