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 0x89beafd41d5fc436228754731e3297df06a0a29ca250ac18604d04500a3b3261. 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/341f33e0-3f20-44c5-93ae-1af9c940cdfe.json and https://artists.proofprofile.net/proofs/artist/341f33e0-3f20-44c5-93ae-1af9c940cdfe.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 0x5bbe4f9757ad5e778655424ab57e78e1f6c5916eaecae3c0d7c511073b34c22c. 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/TCJPJ1972727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0e9882411e93d63a42df17c2b17ac5f0edc40b5c4151db023f18b69492e24c. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/TCJPJ1972726.
アイワナゲッハイ (SLOW BURN EDDITION) [feat. CHOUJI & NAGAHIDE]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e70dbd5203a8b6b01294ea4e1372b5a756e98e2d4d2775dd9c32d5768def124. 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/TCJPJ1972728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4815cc9a938317e7632b083a664e48e0d2428e4410d8e8519229d63d4666b626. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T14:03:08Z), 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/TCJPM2081879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f225aa9d9096d18e8ccf0f829bd6cf37acf1d68b1a6e27b794c7c762ec52b0b. 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/TCJPM2081895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f038280dca3e9dfe32fd91df6cb85c980ada0f383a5a734cf3b7cf8c20ad5e0. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCJPM2081903.
HEART BEAT (feat. RUEED & RUDEBWOY FACE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d3346f4028582240eb24e51079ab0c50a8a5ab8e96df60981644077e943a1e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCJPY2498941.
HEART BEAT (feat. CHICO CARLITO & ELIONE) [Remix]
HEART BEAT (feat. ACEMARK & PEAVIS) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d3346f4028582240eb24e51079ab0c50a8a5ab8e96df60981644077e943a1e. 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/TCJPY2498941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a921cc1cc560d1fbf5930d8f4df96066fe29e804e115079242a9ba0ebe1b2c. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:22:40Z), 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/TCJPC2460376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe816bb684a5c6d9132d9eda366f59c11bf94ec307ad7aaaa151696a4b7cde51e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPC2460379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad3c14d6390c7c7f5baa9f42cf129728f0e36ae798f658be14ab0b5f7a12a24. 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/TCJPC2460382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f21d921a433bc069667875a1aa79bdb3ce21f54ae82a29f7ccb6213295f17ae. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPC2460383.
HEART BEAT (feat. MASH-I & EI8HT) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403c5dd6823f6863be9a9a9a9e751a8f6fd3a2d7379fba4ba8c780b8307f9b47. 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/TCJPF2595995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f06e495552c7211145bcd0fe89b992d953ffaf0553a4bc8dcafcaae3fa9527. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCJPV2343697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efad81ce108053b020e459e2dfffe6a94aad2e217669883aaabf8a7e914aa1b. 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/TCJPS2266035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0464ad1ab7d5b3dc1dc8b6be13841ccf87b3664616b26acfd0de8e980bd44197. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/TCJPK2069718.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch