Manda may refer to: Places Kafr Manda, Arab town in the Lower Galilee Manda Upazila, an upazila in the Division of Rajshahi, Bangladesh Manda, former union council incorporated into Dhaka South Ci
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 0xc06190a9faaba6f0f256f58c0b899776fe4c616a4fb63be3b97378dc82801850. 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/a3a69995-58ed-462f-82e0-4737212cfa35.json and https://artists.proofprofile.net/proofs/artist/a3a69995-58ed-462f-82e0-4737212cfa35.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 0xb470c17cd6cb7a92bf87bf90456a5cd9a52c1f18ef19a9956cf164a579c6dc36. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:21:54Z), 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/GBLV62018283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11ca22446a65f864acc0029162f43326afe937ee99cd659562744e7686673b7. 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/ROROT2202130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bec43ce475e2989758c2c0163c2b35896e492541506a7a4ce93fe77b8d156fc. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/ROROT2204510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d355f09f487e1bc262824d145f15d7786235024bf0773d57235e93773d8e68. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/ROROT2302460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1091c4ecf340d503f7b969271f7a7198001edc916cd9ff60cc0926adba14e61. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:46:50Z), 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/ROROT2302680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85394322b7afbbceec4023f7c6e0a20d085d3036cdf0ec335cbad0692bd8fdf. 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/QZTAX2370759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f438345127a2055073310aad0efc79940e8e2c49ae38ab20bf427d905f8a93. 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/ROROT2304610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59df09c5434984c8ef86fe23a54d332b5365558f37ddeb18bc53709a5989f0d4. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZHN52489028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dbbc6f4ff56d92ee9d26a246613c61c42da2fa4d0f629f1cf7383e6aa665ef. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNWU2426195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d6523234830e0ac44a6aa724b9d9b49e774d4e3bfcfc6d3170b2791f7bd77b. 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/QZRP42418659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d5800692c98301fc237b7ca2098f6d7505251b4242dc56b6bdf66eb87e541b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFG2424409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202d5121f45e153aa207b01609d27a4fd8c43a97615039e6658819ab002655eb. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZWFN2454889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cd1b8dbe159d0dffbc8662015f286259ebf108d1187ad34d35656f320b2ade. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZZ7S2479575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820f30323225d64f8b4e1031735784d100f24913d3d681175d16d095658f021b. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZES52522453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f0c2c4317b1edc5f6d3509c81449083becbf2bbf6d0c4852b67aa086b37207. 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/QZHN92525245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126232093d0539eb3546f4f05a040e17c3a41bbf153623d9baa20ea32a8a67ea. 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/QZK6F2559690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75100c400112e0cc6fb276103026c7179292f617bab93ceb7ec7c5e109bd630. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:57:45Z), 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/QZTB32559120.