Kalil is a surname. Notable people with this surname include: Alexandre Kalil (born 1959), Brazilian politician Antônio Petrus Kalil (1925–2019) Ariel Kalil (born 1969), American psychologist Fra
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 0xd8649aa8cd051c15191d6e506b7ff62cb46e79eabd95b0d91af9d221063f6115. 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/ecf90ecf-2668-4674-b876-cc07ef861757.json and https://artists.proofprofile.net/proofs/artist/ecf90ecf-2668-4674-b876-cc07ef861757.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 0x0770b812137aca0db460654dc0155818aa051e40b866c20adcf60003c46e3fad. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZPLR2498676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07665c0ed8a089820d908c8103488568fb3dad260ea0a0536cca1231be69ebdc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:02:51Z), 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/QZPLR2498677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6606c7a970913d881184c3c010778eadd6d1681f59660fefb43dbedf0b8190. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:32:31Z), 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/QZPLR2498678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dbcfa7d54c6482e2d5d527431fb5c717e8fedf98accf94c2e16eb51099e5f7. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QZPLR2498679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da7ad6da8bd3292ee92b38e2d80a7dd51b5ce95bd39bd9e4c0243d80416f9f0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:07:02Z), 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/QZPLR2498682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb2cea2b3042413b655f7c74b1c926fd54171db49263749b8ebeb9f2ef425f9. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZPLR2498683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347416d385e0289a3f82ef85759eb8fab28284c6e468020dc9d5848e656d8259. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZNWQ2452829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65632c9883ae7e29f6e652f10c37682cb68a4a47389745e468ef3e0e603bef81. 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/QZNWQ2452831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7d0797950010a3efa4da65160831766118087b141bfab40fef2983e8e45f4a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNWQ2452832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed381abbd7604bfa241ad55e18777c440485059e55d2bee5a0ce5e3668f8c5fc. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZMER2484952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b5d8f3450eafdb6de30da319f2e842208533ee2ab2c1ec39c9427de4cb0bf9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:05:42Z), 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/QZFYY2413185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd753016a04170b2fccf8ee2bc3e4762acdf7ca14c09ad0bb7785419a2aa90513. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZTAT2472740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c80e154ae5564402b988ba7c93482bcfdcd846b72c10473b9e83e3c0023f493. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/AE2DY2500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7639bd132ee5026b0793ebc7c25d28717b6b3735b38826a6f971df749a49204. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/AE2DY2500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a7b5c9879316b1965ddfe20b45894364f3e1697d96e26379908cd749a5017b. 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/AE2DY2500123.