Luis Rosa is a Puerto Rican nationalistGolda Meir Center for Political Leadership. Metropolitan University of Denver. Denver, Colorado. 13 June 2014.11 Puerto Rican nationalists freed from prison: Hea
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 0x7ef0159defaf229740ab5ba312abcc1971645a20907587bd3ece26fa2bb6e64c. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fec9e0a-615e-4ba7-8519-e56e68f82f12.json and https://artists.proofprofile.net/proofs/artist/1fec9e0a-615e-4ba7-8519-e56e68f82f12.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 0x3e78bdf882c6a2d5f88b808b5bfcb401768fe1d6ac814f36dd69ffdb249702d2. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FR96X1711806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f8e563674c6d9e2849372e31a27ee1f76f5dbfdca406a1e369d822ae065fd7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR96X1711808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da6aee340775db90c20976f48b0051fa80df53a960544429032c329bd7b36ad. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR96X1711809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480e15ac8d88e93b81efbe52f2b82a57f2720eda87173fa1699adacd7660cd91. 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/FR96X1711852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20f323316d2ac182ceb4a39564e3f5731e669a2b3a4cc0809c94154d86338d1. 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/FR96X1711862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480e15ac8d88e93b81efbe52f2b82a57f2720eda87173fa1699adacd7660cd91. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR96X1711852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20f323316d2ac182ceb4a39564e3f5731e669a2b3a4cc0809c94154d86338d1. 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/FR96X1711862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b33afc8cd4b6bdb3b5bffa6b74f4037c0e24e2cfda9f33f213be2bc0f61b46. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FR96X1711801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e78bdf882c6a2d5f88b808b5bfcb401768fe1d6ac814f36dd69ffdb249702d2. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/FR96X1711806.