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 0x55a4da887dd4774a073df3f5aed9e1ba67c1bf862f3a64bebbb6d82219c8bbca. 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/39458e9e-72fb-4cf4-aebc-f85b24195a90.json and https://artists.proofprofile.net/proofs/artist/39458e9e-72fb-4cf4-aebc-f85b24195a90.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 0x6b0a4e2794b894f5790c04ca8fee859ca6f688b139761ab8635f6f6bd1949a41. 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/MYIR12100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5afcb815e99e2f84fc77e6e2cc652145d29093f9de9fb6bc1cae48ab60f4a39. 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/MYIR12300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ab22a6c862e847feb65aa992c7599a7581697de3b1fdb3926120d24617c15a. 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/MYIR12200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ed9824e81f034a1eff8b6f1a5e9ddc88a154fbb62c2a78db6e525dd4b8fe53. 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/MYIR11900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e964453bd40e1e2aa382fe08dce5f7a6f8bd160407a468e7484b35800d8bdf. 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/MYIR12200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aec2698e6b08132afb69e11dd5b90d70e28d009156f8a77a8495c37621fc17e. 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/MYIR12400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c2f8e0705d05c338a85b06688389ab773d52951c87487901440cdbcc93dcea. 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/MYIR12400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa47238ef18bee9791b0df3c66a9ec12a1badcd1df864e026e154786d64bb2b. 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/MYIR12300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb550dad7d62025e40830e071cb50a6ef32ac9595b0ebf8e1704a4dd81a31dce4. 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/MYIR12300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b296084cbec4b4e2432e0761cf1b903d1aecc4bf8a3e7533212a1c90d2c5937. 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/MYIR12300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadb8d3134abbfefe7bae9998601bdfa9dcc843be7a96fda6657d4ccd0b3f6de. 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/MYIR12300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7def6291c73a905ea69d1de03ae329a31d7dd396186e79a0455679e529adf426. 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/MYIR12200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79086ebb6959274ebaf761edd06c621994a452e79dda12c85fae0c9fe40a756. 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/MYIR12200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02596e1cde7be7bd772f4f652672eb63f3ffaa00c42dbd7a23f8fe17d7106544. 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/MYIR12100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90df4f58b1180977e2543eff8342660b68319df9369e665685f6c849e8056447. 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/MYIR12000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f20bedf90de9c8614326e54682607b0a7199241ae30bde48480f2f2d36b5b13. 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/MYIR11900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04e64838983bd9fbaa9b1f3ed1407b8a5781f6ee03888b800c14f9221d53313. 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/MYIR11800025.