AllttA is a French-American electronic hip hop duo formed in 2015, consisting of producer 20syl and American rapper Mr. J. Medeiros. The duo's music blends electronic beats with elements of hip hop, e
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 0x4e36479f7b0d3929045073b3a5a9c7d42599e2236f70833ebfcced3ec5588548. 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/88ddd448-01bb-4b03-a20c-0e9ab0486e1e.json and https://artists.proofprofile.net/proofs/artist/88ddd448-01bb-4b03-a20c-0e9ab0486e1e.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 0x09c7b05cf8ad2732574f9cc756835a6b6c2e00c3247bfd6eb694efdcd4283599. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/FR9T31600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5941884775b088660d85940fa74b633401f68b2acbc8726113f439c99208f0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR9T31600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b118c3e908536b4b9a8b112e528df545df5ae2f328bcbb47b1beb34d6b7c03e. 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/FR9T31600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6425a4c30650805b5e834da6a4b928d03150e05bb7a367651ee213876f35bcf4. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/FR9T31600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0e737038f44b36aa30e74b5b183e8ce47b33ca1405d89e5d6d38fcb92f6ad3. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/FR9T31600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8309aac07b816f5e54d21ea8d635cda734c0b2661cef8b2cbb6f9c28eaec9e3d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR9T31600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060a0e7bd40bf284af01bf07d01bbad35b443411ca1040fd90745861031386ad. 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/FR9T31600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6217b6c26fe274067f918dedeb6590a0a95478be825bcaa3c3027e1146d7c3c. 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/FR9T31600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88effb908fe0ab10cc5715807d8b5a9da61b3b958f6fefdbfac84c4837c72b0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR9T31600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969bb9673e4d2cac27c7d806a9f1fa154010febd53f2163404a72762245959ef. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FR9T31600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ee37d78b10c9e8caef2246b462f2eff303262b66d8357084b7058dddfbe8a5. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/FR9T31600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ad0477483cf542cb4e41fe51a0a1eda0b9176d1918221b8eae2640a0a9b860. 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/FR9T31700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65347dafa40a3308e1d2a355daab7d984dd47decddf84de06d6c22538537b896. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR9T31600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804a681e3ae3b02049344b57bc41ea9377973143bc811f1b4ffc3797ac530666. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/FR9T31700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cc51eb59436c0293d05e3bea198ba2b274f74665abf590632f2b8551ad8896. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FR9T31700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe3e03c1a3e05ac0faa5a4f1927edc340b0069f16d1096f2befb30d6b705b0e. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/FR9T31600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe34947aebb02e28fc6aa83218c48ba8fa7b3ea3ece4e2b5d7ad2b210c31c48. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR9T31700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d539402dad1d4424b7fb4269a900ba05defa2d3444dcabe689f530b613dfc57. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FR9T31700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234a4457b7e35a6b5f1455ee4ce4d0d1341a30dd831af409f24801b6a089f48f. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/FR9T31700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f25a4e1abaa16d2917938c089071039d1d0c4797e71347d8cd5a7a10fc5894. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/FR9T31700037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f75a72cf044587cc73ac3f6ba643a31d92df40912f92448d61e098bd32ad1af. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/FR9T31700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd330665c8db365fda38a6bcabfc4ae06a13cba67dc009e4a45059e326fd46bb9. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/FR9T31800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b51d939995ebcc770517781f98b101bc2471933be272dfa037fc0f479d91ec2. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/FR9T32300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcc2bee7b1b5ab0b9e96cf41b3fa8a9a81c21cd34bfaefd1c5e973d8af9b370. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FR9T32300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9830f730e8fd71c1639ee9d9ace65b37adcf326b421fbc1812ac8dacbb52dce. 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/FR9T32300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed668fae5f94e2307009f775c6268275e70bb72389fe7e90cbe246d1c74d88c. 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/FR9T32300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b709d34f38304d51ad7229716e812d14776b7747558699bcb230fcf748b77ae. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR9T32300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854b103980122b95771f497d56acec3566a4ee62077d4684097da4738e226214. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR9T32300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4603ccc681494442fb7831c4993918bf9e1656dc719c84afc1a6faf2233b1bb. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/FR9T32300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4f0aad1332c1d6fbbfb027738275617641e6b6174e91fac0e7a1794f237345. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR9T32300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da164c8c09165d00ec76c7337f24002ae19315a349db5a4705d5c74fd3d1752. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/FR9T32300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec472c126923fe77968565e4c830bfc89c775da4440d0dc9316b7a0723ee6b53. 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/FR9T32300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc60a5f17840934658e6a6c01c51194d68e5d1830cda291c37d9987e627198f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FR9T32300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2f0bab81b536c69acace9370e2971fa2aa756172418b44a9e166b0fd587591. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/FR9T32300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111a34ef384657bc17b5aecca6cbb5b5e56ea11b0d63e41358fdd206cb72e7bd. 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/FR9T32400001.