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 0xc341a8415c29de52241a4c9fafc4edb5e40ce5b1bcc710c914d5daac21c64137. 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/b5b2415b-4312-4494-9715-43de2f96dda6.json and https://artists.proofprofile.net/proofs/artist/b5b2415b-4312-4494-9715-43de2f96dda6.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 0x2002795701afc48a2c68c9e3aa339ab904dc7de0aedb73d052f2afd17348a5cd. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:36:15Z), 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/USL4Q2456734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d03f71ebdb06827539e4968fa738c62ea731fdda9fe2642e8d1f7c845fca4f3. 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/USHM81455970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb41e3b1e5c640e16128648c5aea482a28b3689972c25f4a7999a2eaff54ae2c. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/USHM81455971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd604cbe3190938602c65cb718a2d7086b2df37d4d03e29a905489572390209. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:03:12Z), 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/USHM81455977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520b06b903e31d4439d9093fa936c7ed04bfacd8a0ac47d8e42a3e0256e5e491. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USDY42486923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e4a4fe1e497724ee6027029d3cbd88f620485d3cc383567307b1b14950e50a. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/USDY42486942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec262c813c8c275a2e84d5bf8bd990ed5ba8b26d304648240e8a59a9fd4ff6df. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:55:39Z), 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/USDY42486924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34da670ad06a424ebaeb87e9cf48e83e47d3e36f323569e399f776027e42fc37. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/USDY42486947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1283254274a1a1eaf9edf4f21c06fb4d17950d5fc8a333e2c1b46a07c7d66c6f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:12:32Z), 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/USDY42486932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e8c3908804344fa47960c85fa0ab9bd1830012acffe57ec67afefd636478dd. 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/USDY42486938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26de38cdb59417424c6ea17b083f6e13cad82bf66b8ba10a2db1be56ec8fe2ac. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USL4Q2465357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7872f21b5658929e22833249520edc734a9502dfaf1a4e02e90d503706703131. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:37:31Z), 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/USL4Q2465373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9720d7c8b312ffeac016ddad783a446e5a7bc545adc85c519eada9b6b0e59e9. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USL4Q2465366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f80e2fc33bf0f223de7d6539255cd885c1d8d1a9e1284da2fc91d002c54260. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USL4Q2388084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6957054d4bbcf7d2368d5c0a137b4968fc201df5b8d7439fb8d19c0b9d538920. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:36:02Z), 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/USDY42467288.
La Carrera del Siglo (Payaso vs Peligro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f478d226b0ebc461a4b68d29321d48e43da675ed7e908ff031cbc82a942085. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:50:48Z), 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/USHM92468912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca66f61d7e3068e824e59ca165bb282135841741bc87cde6277573460045fee. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USCGH2508078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c48d8df361ace419df568a03cd6d59a12c4ef961a26415dac4e20e4107429d6. 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/USCGJ2525940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87bd687fca3ae5e0fb772df3e65cfc51ca7ab9a1ef604da57340bbc84057a22. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USDY42506730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05413cc0c650c138e5c9cee6aed57cdabf1b105053bfad00818c8fc64a194561. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USHM22556237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd355f8fb545c72296cc7a14ed8a2ae3d5754bee04397dad78827ba5b8ca48e4f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USHM22556240.
La Carrera Del Siglo (Payaso vs Peligro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee952e9fc4cd03c4e17b76d640abfff132dc44bdc36b2bd35fc63abe75da78d4. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/USHM22556242.