Amrinder Singh Sandhu (born 26 September 1989), also known as Manni Sandhu, is a British record producer associated with Punjabi music. He is most known for working with a numerous Punjabi artists inc
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 0x6abccc51d9946dd6f0783ba71f859ea2dde802b4b6411da2f04701e80ac8b90b. 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/3ebcabef-250f-4da6-8906-9786fbbee22f.json and https://artists.proofprofile.net/proofs/artist/3ebcabef-250f-4da6-8906-9786fbbee22f.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 0x13c7c46c04a40844aeaf5cfb0ab374d1e71e921447ed0712e56d61a41b1b30cd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK5PD2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5a389e89d4e6356c6f2b4cc37e7b5dd8db4d8d09d9e0f1c602a72df7661eb2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GB3LA1101017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2ce5d457260f6fd3f936b3615ff180a585b6c23716a9e819237fea2202122f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GB3LA1101013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222b4f52a64500304f66e2c6ac4593c26b63ed4b4b3b3b838badf582539015e2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB3LA1101018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097a9a6565672b333b1c95afdc52201edddcf6e4d4289c8cb2cdd3e07dadc026. 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/GB3LA1101019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223c76aeb057458da65fcf590ed891f96fbaaa4b54df60b05a0da33effe23b44. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB3LA1101023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1f73c866854e09237ceab29431a331d7d73b31b3fc3adea01c813c096c2257. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GB3LA1101021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fbd7686873fad79616a18234bbdcfd879341a7496d0da467b7556aa12adefa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GB3LA1101029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869b2eaf7fe49ce45e553a7c5c295791ff0732c24140d85b25de90b25773e845. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GB3LA1101022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95ad31ad52141d4940e5a16b21b8c634cd88152e24de0baf86270047b320c49. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB3LA1001012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a419b7ec571b191a39dfd11a4fec79f0fa366dae3b69cf8060b8c3ac78a5be. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USZXT2556820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613c11cca6d562bb6ef182b12a650d43f52747eabf678e7a2a7d38209d6e7230. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK5PD2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe50ba2c390af347d15bb33836518a16fdf333db1a12b4a67301b16c73a4a99. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK5PD2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759b747471077cfe488b18a75b37b8f299bc21e78f9d3e8515b4179c8540b3dc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UK5PD2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0a79db8f503f83764a733e4441d358c8da9de6fba7045b44a3d7dabdabb81a. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/GB3LA1101030.
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 0x5cf9f487d3e506ac9e8a9f69e24a71a2870e3623e51a65815da2c335f4323cf5. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GB3LA1101032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87fc8b50cac6c2fe2620e223ac9b1c8f98703a931032d176db01a42c75e8ce1. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/GB3LA1101020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6866a8c54cf7867b9e1688239d2ae4f75a45ffad5755cd7e31e655ee2c2d86e3. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/GB3LA1001013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7d74146da2bc559a0bf6553ca1168cb1b3aaea357a128c3011883d257ebad2. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/FR96X1907976.