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 0x0cacf626b17cf0360d8ece9906c00f269ded0495adf8e3722ce2308bbb0f5b34. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9f70760-d685-49e1-bd1b-614917390401.json and https://artists.proofprofile.net/proofs/artist/c9f70760-d685-49e1-bd1b-614917390401.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 0xe168db9378219e8a500f7d4b073d4cde7bbed39e23235d28054e56a866ebd36b. 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/ZB80H2300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530fd8b06d48adf26054ebe81b9275c900b94b44308fd5e780f3936914143cb3. 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/DEAR42470623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcf040d7f323030d95c29a420cae5c7eae87a961213396f8169b0099654e83f. 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/DEAR42470937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700106146cb74abbf954be16a653f839cbc01fe2d519bbdeaf483e73b5c04a91. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEAR42470679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b14a72835c9104af052290ca63beac7d47c687f39ea01d9c6443bbad0996af. 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/DEAR42472033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8d68cecf55fe5a2d262be0425fe5ecd5bc38b6cb51dc308a61848c498dc072. 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/DEAR42471132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743c9946dd5ba687ca7cea1bb9bfdf0fbd27353cb9dbbe707b0bb0e9669ce539. 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/DEAR42470901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0988ba19fbae3d8ba77195ff94d67a40c27f09ae03314139aa30552fd884c1. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/DEAR42470872.
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 0x5d4f15b9de2440e3a89500e02f0afccc216c1f62f59c59be1e7b784d442bfda2. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DEAR42470608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0bc56b91e49ddb5f90f737239028cbb94190413d20de8b7152fa7f5f1e5288. 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/DEAR42471054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd298cfa03aeb08496a6728c4332b0f257df60728eed125bded67f01bb8881a6c. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/DEAR42471099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389ddd1e22d6ded69e57b24f4822bf8abf87762f57292d0c2e91f861a5e6885f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEAR42470951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99cb47ba11c4416022dd437de71f2a9e7ce830cd7729f86b825e6300ab814db. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/DEAR42470691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb232689249ea7e4a22c543dacdef2c8b922c9dbca1bac51f8e292e314c937eba. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZAANN2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e20ceae11ac1de089a924057fb10d6a768c74558c7f6e4cd5225f528ca0393. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZAC012300979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7c32296802ec6d690fde5d0bbe3266dd6580c7dc03956b3e25f7b8a6b958db. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZAANN2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38f2222771bbd4e0cf64ac697e068bc6c32411421b5eb2e648697c672893249. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZAANN2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fda1d06b84c82d354431f02ca0631d6470fc69f21a96a967334f5491f7b1a18. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZAANN2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d76cf26482f148ca0de629b1a095f15b84435e757ed318711288c2cb73e3303. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZAANN2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405605734172e74d5f13cc6ad23b0c1491ff9351bab959403838730c9f26e790. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZAANN2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ac57e400858d56f06d020a66ab8d53766ecd621dfed4e9f6b4402587300b5e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZAANN2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28d26bba1a9d72c98cb8c28de1ddf34bfc780a1d8b9d850d2f4d8e9d13c903d. 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/ZAANN2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b0a8272e347278386a35e5632c162ba37a6021e611a258f69e1880dd81302f. 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/ZAANN2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cadf82f4cfa5a7c4e5eafe58587a567b6f2ec08910c756d1946630d614e4bb. 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/ZAANN2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5477f95dccee000bfcec21e5090ef15392b49ea55a56189d834467adaf62cc57. 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/ZAQ652400663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ccb42dc4e9fb9601a3c1d902cf97ef6747057e0d473138b5da91bf331dd191. 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/ZAQ652400648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536caeb87118274a8f14775c7346a3886ff491245b1ab0f53ce5605be75d54a6. 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/ZAQ652400649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd622a21b61fd455ab44ea87659ff70adf54d968e26d27b3cf472ce3738d1cf89. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ZAQ652400644.
Istory Sam (feat. Zain SA & Warren Justin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bee485afbeabe617b12bea56f0ac9f8f4e97ed88524aa691cf7b79ebc8e8db7. 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/ZA56E2420547.