Dexter may refer to: People Dexter (given name) Dexter (surname) Dexter (singer), Brazilian rapper Marcos Fernandes de Omena (born 1973) Famous Dex, also known as Dexter, American rapper Dexter T
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 0x98a95e388730d5bf2ccd026408128af2ee104aa7612aeb57d4ef96d9da1c85f6. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51e0b37e-90be-4cf1-8f75-3a26ce2b84d0.json and https://artists.proofprofile.net/proofs/artist/51e0b37e-90be-4cf1-8f75-3a26ce2b84d0.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 0x11e09dd3c347798e5eb3392acca1dbb4e026f00bba639b137e77a0c4b75a1888. 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/PLA552300917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6340fa3f6bdeeb1ec69c79fb82599e30ce7c9b962653e0362da31d9fdfb4fe. 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/PLA552300918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f097340bc8cface6c6b4797ac16bce8d71341603d02a1f6c0bdc41fee81dc57. 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/PLA552300919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd237199b93e4befbe9c06da8e98ccab1a74116c4d9b08036b647e552ce1446. 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/PLA552300479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa467038b34703b765bee192382bb75722dfe986c11feb98705bad4cf2e9ed2f6. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/PLA552300868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997a74ede78024eefe14ac1cc815e23d5866182b7c7099675cee017d851ea979. 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/PLA552300920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654a8c536df7bfb4deb125c4c3c80cb8d7923b4643e5ea601f58b4ff564244a9. 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/PLA552300921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38ea356e3f9e0dbea1d3208bfb9c4ccbacc9247a3141ea7ca137fbf7bf26633. 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/PLA552300922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c816e45bdfee6d38c2f5a927be4d4fa74cd5c002201e1f523894b0c5404ea0. 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/PLA552300614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215dd87be143c0691555dae9adad2d2dd4c066ee6ea5f9e7a49195cd08cd4560. 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/PLA552300593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb70a99a9900dae3527fba70132070a3fb9a6a232eeede0a533277cdcbe1edd. 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/PLA552300923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e91319aef666c174308ad92c0161f52a9dd099d66550d75fc1059f7eedbd3b. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/PLA552300785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e3eef6fe33f7ef24a35978188fddf6852dbcec6ae76dbeb32f69c537b28e62. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/PLA552300924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8f0cee2c4049d493fb08f4d7e31b44881357c7a511b41e13ad728a19d15d2d. 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/PLA552300253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052f21548d0c36bee7ffc5d573272dde0f7bb8309739218cdb99472b5aced4f6. 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/PLA552300925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59079e3a7b4f4271765b59469eb76f0b6dc64792685c0d34d638c9b7e842be46. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PLA552300926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb70a99a9900dae3527fba70132070a3fb9a6a232eeede0a533277cdcbe1edd. 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/PLA552300923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87e8b504d742914e38b31aa040a58996e3ddfcaa30b5aea9c3cd94b6b1fc6c9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/PLA552100732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd935d95991432fa9af029e641d55e746f2e07f9cf6b43a524d9df948a98a5541. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/QZFZ62567579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e16ad2a808808c813a780923f054e37a9d8c554e575547d4262f7c93c9e0532. 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/QZMEP2582087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3422ba53cfd2b9602707f1218b308c9fa74e852f0f56e8f83f3ac1077f5779. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/QZMEP2582091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8761a82a749905b3a1d3732a3d836d13506b5e6ae89da8889e1d9ae52ac919f9. 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/QZK6K2284668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605fd9da9cdd2363d2eadbfc98b354beb20ae55add03641e5060db59759a3261. 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/QZHNB2553249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fd62806233ebf7a2c87205d7336ba3c00ff3c1dd2e7919ea11689b8628071b. 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/QZES92532140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110f3e6a186d768d1df96b460c64ba31b2c06eac7abb061d5ce36debe46fff3c. 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/QZDA72590012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd935d95991432fa9af029e641d55e746f2e07f9cf6b43a524d9df948a98a5541. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZFZ62567579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273a797fc71cf29178145e50d0671f04e5599735207f0447bab93ef2cf5fdb9b. 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/QZMER2501015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df1bb0d5ac538ad6d1097387f4fc402f0a2530ff6d1d1d8e0de27d6ae6f065f. 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/QZMER2501016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd474354f7fb3cc4e2ffd32409906598d7a515bb412695b4a4e877599aa892845. 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/QZMER2501017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46948815e304255d1399ca2910c73ea879ef5e86f80fef9324202917ce2d702e. 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/QZMER2501018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3331efb59b68a54941e29d6d63c1818436489dc782e96e9bf805cfa64d3c95. 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/QZMER2501019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4d7d03b98dfbefbf520fc7c3e4192202bded859e58d1e34e1b5c2c3dacf730. 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/QZMER2501020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe827e0461c4aadaf1eba62a5cb24893055c1047aa838a1dd4810677d0f7feca9. 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/QZMER2501021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a152d2cacdf8920a3b1aee3451ab007b15e0ea2a93a7353924df24eb74ebcc. 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/QZMER2501022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3958fa3447eb99f71b8cb058d0f8f0e91d339e2145f806f5a636178cad249ead. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZFZ72424472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af81b14e35372d6d5869746ff8f2cc3d76b2461ea0c9635dc51c64b4cc372b0. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/PLA552100845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87e8b504d742914e38b31aa040a58996e3ddfcaa30b5aea9c3cd94b6b1fc6c9. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/PLA552100732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aefe87bb7759ecb5f92723330cffcf47f08505aca4b5c420e620ab315a81499. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/PLA552100840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad585b34ac7a8798e579fe0fa8afeede4f8d54ae756e87b494aba8471261c118. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/PLA552100847.