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 0x4272106a4390fdea4c2cfc47a5992a5a275d73f88889992564e1a3d5391a77c5. 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/d6a46077-c16a-471a-b92d-4c401df1a9aa.json and https://artists.proofprofile.net/proofs/artist/d6a46077-c16a-471a-b92d-4c401df1a9aa.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 0xc54d336fc2b1e5506d542f5a9af8b5885a57bae505ed5059bdb5bc0a78d4b1d8. 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/QZ93L1802820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac14b4fda5b94123dad595e535f42917b2cfb6374ad8ee1e8caa6dbea3f2e314. Chain 2 (Bitcoin): anchored in block 957625 (2026-07-11T23:15:09Z), 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/QZ93L1802826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98418b0709d89acaac8cfdb1e893988d835d3bb2755d00a85fb2529f6dd4d7b5. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:12:40Z), 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/QZ93L1802812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39da22caed449d14b23720dfe86601687a6dd6b8a867c57556981b979f48056. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZ93L1802818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e518950e36fd7dea50867b8dc95e78e19dfe3f9cd6c9f0c794efc92d16b87cf. 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/QZ93L1802821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a30237ac56a9c8ceda710a5325b2474ef8d66e88eeb8cb54532cfa93e36358d. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZ93L1802827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5eea69dc18debc0e24b48a24ef3f9733b44135b3813a6ac19b0fbae6ec6e1c0. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZ93L1802816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e12626648bb4ec50c9a67a407a7e6f5331420b0ca4ff029d7d621011abf5e3. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:28:38Z), 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/QZ93L1802828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedabb8e952b32c98293885491426ab8d148fbddb5781fa8921f5dfcb6b6152b2. 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/QZ93L1802817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667b72f21dce6ad3eb7df8bf0725a4f385093fa7c1b8dffdb28cc8430952d188. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZ93L1802825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc7dd83364d9ecf8645a4ae179d190fb455a1b4b5f2bc331049a709fc9b468c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ93L2053581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a15cfe24038955ca5be492f7115bfbe68c1b98a207b7d90bcb7608d025e4b0. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZ93L2053582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ad85055e79a204327da3a74908049a516ac086f47d8dd98cc8897e06166b6b. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZ93L2053583.
Prilog semantickoj motivaciji toponima otoka Braca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964bbb2157b0d0b12cce8f9ee0cd0be14f5517426e2d0dfe1e8d87c905b358e4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZ93L2053584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa4c9d74cdd461de3ecb9f8533ddfc6767124a62456a83f7815f2c5da474caf. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZ93L2053586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9b1f2d0cce8846ed679644a33827e61139adad204b03a16022d1c9705e5e3f. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZ93L2102530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa595c1702a3b3806cfa691ff8efb3e9e099e5b002a2b1da9adc1bd914354b999. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/HRA5B2400065.