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 0x8563e470834edf18725d13d6a83ef3794f2d56eaf53a94c250de001ded77c17e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0a4e886-4664-4f19-a1f0-bb5ce608efe9.json and https://artists.proofprofile.net/proofs/artist/b0a4e886-4664-4f19-a1f0-bb5ce608efe9.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 0xeb753cddcd80bbb1031d5f9749c42169bdc9a69fdeecd1f1c689494335825354. 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/BKTC52400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb710fc36ef1991c731d0a18e1d4524511a27ee57b32e14a1070244a3cab45135. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BKTC52400044.
RITMADINHA CALENDARIO DO PAPAI Vs EU VOU PRO BEGA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f714ae82c76e4d10c0175422bf456243ac31898c08d69cd3c0fd37b9850ebe. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BKTC52400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ea47696c4cdf0b56aaf9049bc6d68e0e1ce508e6a5c8bf325a30fbb019a162. 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/BKTC52400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b402089b4f4aa3e8195e9d56f8065ed4cfb0f475fde7d4af00f18dce10491f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BKTC52400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5224c720babe2d1b4cff907dd4994b92e8af5627f6da511444a15626c7a35e92. 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/BKTC52400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a235cb58c059c1dfa39f76ef0d37179ba21dba71ac644d3a6e47fb965ed5742. 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/BKTC52400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bc053c743283f3902ce502d992b27660e0bae13fa23f4d0aa4332ce6bac9d4. 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/BKTC52400174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe516c385d3c695467ee3f567ba4cd7109fe5bab5cb51e2cf91e1a12e24f7b935. 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/BKTC52400173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5ca11c9790df8da404f17c37f5127184b0a9c0730646ec31b7c394e3f1c710. 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/BKTC52400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2634818a21775a7e168c91c229121e23ebeced0a0aa4ba35fd12608d0fe60664. 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/BKTC52400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3e53a7adf43ea2dccf07bfd9690d64cfe2af4ae48dbb919f81aa85dbd77620. 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/BKTC52400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6cabbd36ad176767ed86767fb2bd002465a1f4270dcf8f378e729e3d98576f. 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/QZWDW2486529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f4b434714cdf651312744d4ff792a0e3df53e170861091acc62e11ce793f94. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BKTC52400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa544ff44a43901e0c9fd4cabb14a4103700efdb660a993e90bbe43c8b15d1905. 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/BKTC52500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303c3d93186b15995142ee723d6e2df500c67818e17ff1cf246f21e00e86b9ca. 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/BKTC52500012.