Meghdol () is a Bangladeshi indie rock band, known for its poetic urban-themed lyrics and theatrical musical arrangement. Founded in 2003, the band has released two studio albums. History Meghdol was
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 0xb1da9ef96315ea9b62605eb25f16d68eec55b57a96de4bfc12d2a0636ae13244. 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/47a29665-81e5-480a-b833-95248768f35a.json and https://artists.proofprofile.net/proofs/artist/47a29665-81e5-480a-b833-95248768f35a.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 0x15ec3190a544ee2daf940fb09eacb51b775e62983bb8f06bb048862d3f4c863c. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/DGA092227466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8fad99a4cd69fdc1e2ba95b8293b1e0b54fabc7f9808c96c35ca4f1e352320. 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/DGA092227469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42559c03c69766272ed1981acc80d6096d19d786a83a428c55ddb1f29b9c40e. 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/DGA092227472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4739589758948e0aa09f40f496d2d67d5271aa9c2712f111738e18d91338d14. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/DGA092227474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d84bf468d4a7a44ecc50a9b86c6fa898843045c24d4ae1f88b6a5106d280150. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DGA092227475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d82043e7f39cee8c0c34622b17b8933b1161cfdf08f62963b193107777e9964. 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/QMLNB2200253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09411ea1628ce73325224f12d619044adc26a487905d99a760922e00d9a6e18. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMLNB2000242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d6aad51d8e0704d1ef7cc100fc18bb8a347b48bb92844aed987e96006d828d. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QMLNB2000243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45882a2fceb19989e44fed5aaee2eab9c140194c59a6cdde9042f531b4d9c9b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QMLNB2000244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3222c99051d1aff3f5b82c2a9225d2601e71a0f0df200e60c95eba375ef719. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMLNB2000247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2ba3b36c32036c5615dca7261039e2a2e78c79e9aab4d1904c1fd0722cd6af. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMLNB2100142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2d49c75e5685f961202d9faed9a2f57aac93a5feb97fdfd15a67d66c92e205. 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/QMLNB2300212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddd61fc49170d8090ce6818762a77a95a99b9bb1af1399aa28b448c2b01439f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMLNB2500075.