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 0xd7f3bb946cf8da2f0a4918099a025918d5600ef2bedfd4b8bb895cdda7fd31d3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a324ee2a-e279-4b3d-9bd0-075092c90e99.json and https://artists.proofprofile.net/proofs/artist/a324ee2a-e279-4b3d-9bd0-075092c90e99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kamahalan (Miss Universe Philippines 2021)
Kamahalan - Miss Universe Philippines 2021
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 0x037ea660f7af47411e26bd63f5150d1bf06d07c8a509637b6edf23adf0a7decd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PHS032101793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3ecdc4545249c314e986c44afdaf5b69f6798377173ce457186bf1df98e21e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZFZ62496974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6679cd3dfa263f03ec23a9f7246db9cdb3e5b2dd4f64f68487649b23eb3e34ac. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZS7J2418958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2984e2ad80518f7778ba7b29e0c5e5caa64d74d94d22d7a3ff91b304e2d366. 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/QZS7J2443347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef832a462917bff4452c4a523d75ba319a2bd60339a9cc37ba98d6b694b0a76. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZS7J2464247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3ad3274ee584293a926c42959477214bc5e39bf7c30f2a8fdec4a86c4c9ed5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM22L2501147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2ef20060c576d387e7c63a687144451ddd204f3bb20c1c898b62e8b2426aa4. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:39:35Z), 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/QM22L2501154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4317a295a7a3fea14cc575f0a722473a0d80d35fd535f5a236cc517849bd9db. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:07:26Z), 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/QM22L2501168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb710fca66b3f6de64e84ba3dff63a6fbbb2fccd9677946055c12e0e1f33d8b. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QM22L2501196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363167c502c312d05e2b347eb72a3efe58c3f178fa9b56785f0935b34867a3f5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:01:02Z), 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/QM22L2501198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa053324f26e480bc4691e219fe195ef46d414e98433cea99a950fb7f4184bd54. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:27:43Z), 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/QM22L2501199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896143ea2f25d392274f3bc8593636c7cd732ed1bc041b7d9e41d46c0ad047f7. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/QM22L2501200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523c4b2c2491c9763c9c964096d898a9871512320709bd445c2e295bdc31a010. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:54:03Z), 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/QM22L2501201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60b1581e5e00216f28c63a0204d982e88eaa13860be324d22bf035fb5b19666. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QM22L2501202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a1d780d628d1b403e79c5075a8b22800c22e199e512a80e6aa5be25083f8be. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QM22L2501204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1049b20ad47d6eb922297963fa0243419757c7046781cce9c7fd096b4a24fc. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QM22L2501205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80fc596923204474f0fa2f50565aa307c6a969883d5cebfd108131027424136. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM22L2501206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167a67492f4b198c419c20cd0a0ba4f18e37b28b7aa6f4c15884b03bc99ad5d0. 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/QM22L2501207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3731bdb89c2722017d0e3add1fd56f9f62afe6b1c7d3ca2864e4e29c82e4acdc. 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/QM22L2501208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88f3d94c0d3149da36f8a648a7c323b2727aeada8ed01c713f2e8171b5b1896. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM22L2501210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698e737942bd7516106e46f0898e7fa4f858a43b851909262e6c0aca0db19d91. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFQ2582557.