Obi or OBI may refer to: People Obi (name), a list of people with either the surname or given name Mikel John Obi (born 1987), Nigerian footballer also known as Mikel John Obi and John Obi Mikel S
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 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 0xee38703fc6dd8028fa27c9601542b791d0a0f499f9e5b2dd6590183806dce5d7. 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/d0cd2f42-e594-4559-a497-a504883ba3c4.json and https://artists.proofprofile.net/proofs/artist/d0cd2f42-e594-4559-a497-a504883ba3c4.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 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 0x6542966ad6cea2853a01ef2264c7af850ed7b6ca07abc52a57de6a413bfdea20. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/PLC061908051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4737398ea5e80b6f0b1b62669452caad3be8e6b0070d3232251a0e081589071f. 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/PLC061907887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46f371e00be898d2c7523776edd821c7be7a5ece1c270d727b1a54819ba0ccb. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/PLC061908130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4719e68ac76f397e0f78c783a7ba28d95aead90aae0549b78752bfe1588412b9. 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/PLC061908243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7975fad1b556a7e6c407b468903fae412d5fe9527afb83da36b2bb0c83b93773. 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/PLC062009463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efb340e0b80be6806a37473fa238b56f4d3b2d82515768ced0dd8a03feb57aa. 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/PLC062009718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6022bf1c5dd264baafbfa9fd5eff9c0b3ea246c6b97f84d61059b8c1219d2e. 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/PLC062009766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38572b04d3d664214cddaa6a18520c0edee5d6698752c38bcc8cbc75e316757. 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/PLC062009461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa6bfc31679b27b8af5e2b5b69da771514b2b35ce326ddcd11f9a41faf5002f. 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/PLC062009768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d3424e9a8101cb886de0c85235228a41bdd3c6dd94874301368de768bf331f. 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/PLC062009168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ab4d6aee444813b446ec9767dc00625b95d51dc60aee9d93990cad55c8f3ce. 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/PLC061908049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94cdf0ba60cda7dbb30ffd3f508b3fb511b071c65db9b1c02ec4a1372daf44b. 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/PLC062009772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d03519678a7f97cf4934b00496a2488103a2f85be39c470c5e8a0f9041b7dd9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/PLC062011289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cf9d6d8ab00477075942b13026df17bca3abc85ea4b62e1a217877a56e34fb. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/PLC062112615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8755f77c123d46493a1adbe46513617760c3526db615e83893183c11dabc6907. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/PLC062113795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd7ac4183b27ea2cd09c533a16ece8c1679831e12c853c3e21d727054484588. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/PLC062115871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11df0e0334fae9fdae1f9f4236ced504a000a8ac93c313ddcd61aa63ffe269c. 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/PLC062237774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83d7cb26c7a3a119838fe44cd8b7ff392baae60276a1b78c16fe85deac3ed11. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/PLC062240836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7edf46a94ebf20f0622b121f5fcbed962ed69953a9343dbfad4dec43bc488f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PLC062252982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6847115f2dc0348f8f3b63af18cbddcb481b3dbd9dee5f8b442e398d1d3394. 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/PLC062366897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9523a8c1498a39ce354bdad4813136d8c791529f5aac201dbe628c562b069b. Chain 2 (Bitcoin): anchored in block 957895 (2026-07-13T18:41:29Z), 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/PLC062391078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae953e8c92bca4ff55777ed3d181c08ce9245231c9733f76720a95289009864. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:45:50Z), 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/PLC062396642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957aa3493d2a3f1f1397c72e1bcd4c2fb6489c68fd8d8852d119f5c4c9618328. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/PLC062403728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df206d0df155feadf282c50dd073412cebc9bf7e4f0ffc9e309c34456808cac. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/PLC062418714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa394417d2a0c2811e0d18af646bb05d2e3bd4cc49ed4622b9625dfd9dda39f42. 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/PLC062417669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e98fd8279b47a55ac38f189d0bd09635fd8c4a5d3cb5c6c6cd1d0f9764ca23. 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/PLC062112336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc609999e10919925b503b3d66c8003c2292ff00cd1bc423fd369a3f8a4f9f7. 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/PLC062011816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4560b5e8885614ce41021ce317b8abb86e9ecd853613b9af1d24e40a25b99bc3. 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/PLC062010675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b637cd2b4382a087eac023904d0d3a1728dd5af84276e3988f0345a3cd70747. 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/PLC062116149.