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 0x7768be565fea28de18b6ef3956e8f02d50aa1aed05fc8ea27f18ae1f766acd7e. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4ffea618-d9e1-4bc1-b914-dbebcfb50d2c.json and https://artists.proofprofile.net/proofs/artist/4ffea618-d9e1-4bc1-b914-dbebcfb50d2c.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 0xb46c86ee9cef09ffe849c3ee0bb84018af0521f592a9d04871b40b4ec8fd1f07. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DKABA0900330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620b83981f77aa0f4fb9fcd506fad89847c73de81ca736561a4f5bc2f4b9eb54. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKABA0900332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb29a95cdb5b7746abb106551ff024093782db619620d7fb2d63ff7e86d705b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DKABA0900328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793a0e2b9d0f5f241c932f51d29fe1e728da5478c482c666923172602a177cae. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKABA0900338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f2f079938b30c222351f304cd358080f4badec261cc2561b8b8360fd0cced4. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DKABA0900331.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6863233f24e74bf282aa4ea3cf357871ce17c5796a2713e8b33088672bbdc576. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/DKABA0900329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d1f13f4b940233aa792ea03542e9a2863e7036024425da0b9fe29f3646b89e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DKABA0700419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56484aafce32f611b9afe029333111a27935befa8a5a2a3b1b2580e4f7b7a103. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DKABA0700420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ea24c75a90acd4f09562b745921acedb26968f7451a9c6f8d679a503ed2679. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DKABA0700421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5126cc0be32d6006593523f6ede785b066ff4190885371310ba7cf0c4d66f6ce. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DKABA0700423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb041449702622273736e271bed6779ae5488ccc02fbee5c2ea75e8cd4499a63. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DKABA0700424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548644cae9fe7eb815a41240fd9476309903d58449f7c7414e2531a812761531. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DKABA0700417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0cb93e948a3f1fe7b686c1ee4f075a158588407ce743fe433d2674c377b59b. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DKABA0700418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496dd920e3029d025cbdfb82ec78160247c1775f3cace7031b404e4ff6e8e4d0. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DKABA0700422.
Crazy Man (feat. V.D.C.) - F.O.S. in progress
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8922358404ea65891b478f7416bfbbea86ba2dc8b439df92ad9daa54d14e118. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITE011006938.
Crazy Man (feat. V.D.C.) - Club On Blast
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba2b07986ebd2b1755f452a5ed7f961572230e867870cf9c030faf795af8f17. 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/ITE011006939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b5b9da89e9e3e6ebe8ef42aa1fa167b28f5cdb4dfedfb3ec7eb844d1a52518. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITE011006940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad7bc39b51352a9e35da0bc673ab00f1e51175558af0ad7bf215db9232636c4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITE011006941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c56c52859e864ae09466caa42cc7d75dfd6df28b50550108d82ce6e7fd2a35. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITE011006946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28422dfe73ff0b32d7c7ec8b55d2838a4c4b2ec4876e091ad37a5245930ce4d5. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/ITE011006948.