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 0xede4093d2bcb7d2a7441295cf9378d8b024970dd5e99a99511750b810ece3143. 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/b467b711-c262-47d9-b9f0-2d87d377c5b0.json and https://artists.proofprofile.net/proofs/artist/b467b711-c262-47d9-b9f0-2d87d377c5b0.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 0x84042ac3b111db1f2aefac513cce9a56c1cfa84ea1028f8e729fa50c742a3cfa. 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/USUM72017419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efef8c15d1f704cb1eaa6cf03191332dde7571316f8a8d5a6a0750266007f7f. 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/BXTD22000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1939f290c9471ad142c86ade10e18cae9ca9472fe35f001c925229cdb17f38d2. 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/BXTD21900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4614bb8ef42da8e3e5bac46fcacd32602469e98d8604aa40592c2c216933788b. 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/BXTD22200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e0ce2f3499ea36f4ef1c680be42255f2baa69543804c3299850d203cb93027. 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/BXTD22200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5276db9d6afa47dc0a8c6a08d1f64eb8799ac55431e0aaa52388d1e64a832917. 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/BXTD22200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219d3123c43ecc0cd87f207d6dac4ccf6f16cd41c375f86d6d8e04fca0fcdfb3. 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/BXYQR2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a62dbe1f76ba9ef3c9aecfd43cd446a04f8ea9dfa7f184061739f464212796e. 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/BXTD22000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ccbab66e0693c7c13f99e846e2a142dffea0463cf51bac40f290886ea51b83. 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/BXTD22000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1939f290c9471ad142c86ade10e18cae9ca9472fe35f001c925229cdb17f38d2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BXTD21900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eebd72cf683aa24f21b6e2c638748c610e63884e57f4be87e14f2e13065a643. 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/BXTD21900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb00b3193f3e7d4ab36bf81fef479819547cdbfc09cd6a4d01881dc1277101b5. 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/BXTD21900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d8e10d802e59ff9cf5dc5ca952e0847a331eaa6ea751af938d470620b73fb7. 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/BXTD21900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cf517fd0b53b66c347bdda1a6e246476560cf735ff9f4121349bc9ede8e697. 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/BXTD21900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5530975f57055ace9dcd7e51008509841579fdd2934d22eea29602168d0a6b. 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/BROOD1800074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd800735be8e39904da52d88202c34521a299b774a30a565b1c8a69158c8996a7. 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/BXTD21700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc321c0ddd546d8a745cfc6a597ccaf746b477fd6b9bb01805768d7647465ddf. 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/BROOD1700237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fb0fdcd4c386b4754043bbd6379501bbd5e33e5b7997e45cbea6b781eab0e9. 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/BXTD21600003.
Lançamentos da Música Gospel - Sucessos 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918da51d0779e1971c1414f337c1744df3a6d5b6545253033fd12ab50254f206. 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/BXTD22500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5d9bef407ffb4b4eade1c55ace3a8aa236ed4e7a22dc5b95ac500601ff513c. 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/BXTD22500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd765f96f4db08769893f330ef48844c764076a12079e964a1e65dc63d0753e2a. 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/BXTD22500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242bf6e6781c10c3b4a6ea60a79628b921b3ad89da889339229855741a7a5c8d. 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/BXTD22500006.