Meril is a Bangladeshi brand of personal care products owned by the Bangladeshi consumer goods company Square Toiletries, which itself is a part of the Square Group conglomerate. The brand's product p
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 0x596bf314ab8bcd9260fa1694c4e76539828da44684005c7172f61abf0dab5337. Chain 2 (Bitcoin): anchored in block 953621 (2026-06-14T09:42:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2201bece-1b51-49d6-b1dd-0985104a940a.json and https://artists.proofprofile.net/proofs/artist/2201bece-1b51-49d6-b1dd-0985104a940a.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 0x6c2d9b35ad43e7096a6c36663a0b65005bb6a4e86a19a4fdc0585bfa7de4162f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPE561011521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3837e71774649065429baa456e143475f8eff9c37e289c8ec086605835cf625b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/JPE561011522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5dabb15816c8c7dadfecd7bf1de4bbd076d34694b0a1579e26baa6dd21f47c. 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/JPE561011523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d8a2d554bdcad6b6cb8990e84c06e6cb5226cb176533fb6200641ee020a4ba. 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/JPE561011524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4b05c672008d45bddac09232d51fe270ebd0cf91f9db75f89970a89e5d6055. 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/JPE561011525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3b587bdcd7848296abd1bf0c139f7851bef9e0fbe4daf435533da9179f3c50. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/JPE561011526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3bf482e6927407244562b0079f197ef7592167a875b7ae1ac85b3f6e76a114. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/JPE561011527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5167d2e8148b0d6827d6a3dd1e6d79a6bdf053cb39824847726f3299b5a41db5. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/JPE561011528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cbfcb7de867c692d197c42c2e5eef69c98e114b034a69b7e3e07f2f38f4e86. 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/JPE561011529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1faedfc5749cf43476768c6dd4b28865b747964da99221bfb186549d4e20c3ba. 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/JPE561011530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106262fa79a2cc4203cdb160d687223e0da11e3a33b88fb6e4f03cd95154000a. 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/JPE561011531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150a59d53e8dea87d8e9f29746910cd69d6752b26caeb7c4f15b3e1df3a3ce1f. 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/JPE561011532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404014ebcc2780103947839b543f26413c1aeaaa31ca0f3fd2bef1a06c18b943. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/JPS801945559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe616cb573fa2c8c4ae077fa2a04ac49815330bf744ef5928fde7b2a9c7d8226c. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/JPS801945560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c5cabd344fddf2c795288d3033d1de8bcae6ce2f9eb2cf8fbe7623a1f7e6b6. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/JPS801945561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aef7d53c47fd7fd7d1e12af539b2ba3143c537b40d87eb3d64f4847e1d83ce5. 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/JPS801945562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7125a7810605a3cbcfb488a452acc2baae6f54f350f478e68331bea153bb6922. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/JPS801945563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf6564b98c94e0703d45dd0bee55aebd7379511b60b21e3ec09d1e39c75e395. 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/JPS801945564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6571e0c59fec5c02e319065f9443012d8fcc6b1b0098692ee355cf7b538e3042. 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/JPS801945565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfd4d08a0c7ce557e420c1522352b9085cb580bdef1b6c2f4d98f8282af3b2f. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/JPS801945566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3e25a3d011d007090be556296eb51c967fe3073399d2c3aaeb1b0a0e2a2bcc. 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/JPS801945567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd7b36b1a62de606cf89a7f12ba72ede94357eb24c2e4a3c57a8cc6b346e610. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/JPS801945568.