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 0x7bb9d21d0ae3aa46a96646f3d13d4b38afb8c5587321b1e81d86b783829302e9. 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/817cf169-8a0b-4965-bf57-4edde988996c.json and https://artists.proofprofile.net/proofs/artist/817cf169-8a0b-4965-bf57-4edde988996c.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 0xbd001e8e86ac18b526a60d3be2254aa0f7748cb613febabe44d3f6f88d24835a. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/DGA0L2304099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf37c45103bb4de82671aaefb524eb2e17ca94c9c072c2f14beb9dfef09248f. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DGA0L2304107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415ca807e15e817ffd494b5637c8d9e778fe01ec88616d4d4882d9a7f8b0aa00. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/DGA0L2304116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ecfd09fad54e79a490de574a3960297c965c1559e8ed7e1d9e31b5a9d336b6. 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/DGA0L2315120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896d535b504737c177ae0397795598b9ff81cc15e657166f94b7a391b74cfcb3. 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/DGA0L2315121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f269a72b95fe0d74fcbdf4d0d8c406824b6e2ee542fecf513de990fa8516a8c. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/DGA0L2315123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68aeb7518fdb4de98bba46cda0e532373144618936b6e9ada81287edfe35bd6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DGA0L2304135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42951898fc45e0b9f30463918b6128d1abf992e3c25191940fc4eb7a3d631520. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DGA0L2304136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094dd21b88fd49054e905e81ba34770502c9b0b68bb414ed9752f7df4bb6d00c. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DGA0L2304083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d736f5466275bcb848e26bd1d655939bc7c9a45355c73d4eaddb8c96288b2bb. 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/FR2X42367022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77975995582f4bed9af70156e88f5b7fbf21324e001b086b757db13eadfb76a. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FRX872074495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679f76059ac9c90ee5a3bb2f80a937827862d444ae2e7a7d92f0ca157196e83d. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/DGA0L2304089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ee38f17f45a5aed1e55c0369ab795a86e789cd41ceb136f3c7ff60191a721f. 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/DGA0L2304090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546b03f98833b4b4c70229978fcd25ff4faad0f5f62d8df4136c8feef79e1ca2. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/DGA0L2314298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe699bcf25f567c1efc6ce2e7201c36343ade80c51878804823add1c4f04061c. 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/FR96X2064440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ce9e93df8272d34d36463ac15103cff116b64087f3aedcf11b47d2e87f6a06. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FRX872019545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73844e66e9472f6b6616b8828ace2130373ba96f95dc53c10b4dca00c49e422f. 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/FRS182043614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5058fd05ec59b6a66dd4755e79519af3dafaa21132be99b6ce7f7f273aa26ae. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/DGA072160642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1725249064ad37daad106f2c256731341649ee65ffc842909385a341d86fa5d. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/FRX202117303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9eb5349eccd605ab0c016e764321d6085fd6d24778ee745296d327441e3386. 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/GBLLT2355074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef80c0badca7740c2dd09d6001fad357574bc9c606fce1b20834886a16f44dc. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZYXP2326961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740446c4845314c33e4a6c57224e733f00ab8fd1fa709ae3687805c733fe05e7. 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/QZXLZ2323734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce9f012fff04176dc016df470a538894f8149b798a0621f8aaa17b0837135a4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZXLZ2325480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e127d479fa3e4162372bbaaad23538f1409909526997b466177c5d168edbadf. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZXLZ2344468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8e86d5f488920b7963b9f946be15acb4b66c8180c0c22062f19ac6dc51d84a. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/GXBMV2400657.
Shukh Pakhi Tui Uira Jare (Slowed + Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213345926df6583d9d5c598d30691d10ec63bf91c5d083b5f8d8b8f50366fef7. 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/QMDA72498207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee08e03557ec7331d1127f41e0e01c09bf1edc9dc54c3473cd33536914ed4b0d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRX872502703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb69b4b1d38983b83ab9ea334b63e93cc8429a9d6e58a801fff9be81b7575496. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/FRX872533312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d491dee29e4dc74101073cc781b83a0dd994c8644ee219e9d931008f908a605. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FRX872556420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a85fd67adc4e503bc1e9f88ad32730944bdf36a392373fba190a7babdf3f15. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DGA052532592.