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 0xe3b6bb8754704fa86cc7d44eea3c903bc1b5783d03664861a8000ce36c3c07c9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2e64589-e4a4-4f20-8e36-2e888e54b968.json and https://artists.proofprofile.net/proofs/artist/c2e64589-e4a4-4f20-8e36-2e888e54b968.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 0x7861e0c55c8a4a5520638840bd202a4df914f7e7b6e775abaa97adcbffff99bd. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/FRX281726905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48333a66cc6d20558eee970e3f75e0bc8eb00af18040afd5d89e1f52b05823b3. Chain 2 (Bitcoin): anchored in block 957541 (2026-07-11T08:23:18Z), 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/FRX281726909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90167551d975162c5d0cd11647825637ef85aa1a14839938179fefd19faba9f8. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FRX281726910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afe7efde193158d38a001e262be8b859d70fe162fe73bddae2a8a1d6b32ab8f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:16:54Z), 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/FRX281726911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d3651dfd648fb551cd0aed081cd24bf6db5538b7b41788ca05621e714c3d68. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:27:02Z), 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/FRX281726912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e3e0f4a64247161b9fb7c05a1682b670b5a585302bc5221da16d17b96cf3a0. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FRX281726913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603920d37182a90b45662af3a2aeba08f926bb2ccb5f3a2904f4f1c1a3041421. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX281726931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c635f321e8022f5b11ae3d474a864a81eb665e945d4fc779a75d9cb36ecc2c0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR59R1755928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75e4365eb8309ea0b676d980a6ba939f54b633733d2aaa5dbfa5193e510ce6b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR59R1755932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998283bfdb111ec35cbca071a6c38baf90a88122d5aa9726f83735c32019a5f4. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/FR59R1755936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279aadb642ff2c96395d50461e26d30a321602c6e86cd8bc689acf323d523936. 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/FR59R1755938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2585cb28c8380a40ba116b04010f52b99015f7ab748cf299c218faf64296e9ef. 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/FR59R1755940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d269501b2a1c77eed2c511f1848006bccf6129fc93f9f2adb62deb26ce0489b. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/FR59R1755942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153d92571e484cf68cdeba34781aa626c904eecbef29005c2d873a259a589436. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR59R1755945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675a0b60be38455cbb19d5afb6961ab131a28cae49dbd2258ca9257df97e56be. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/FR59R1755946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620be99e0ff17b097eb1d120f2a0048a4c813f7285a0728b62c6f990f52ba803. 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/FR59R1758740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cdf477ab913b46e4cdc34b5f52479cb3ce812eaf16d30d1eead11a7eb8955d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:21:53Z), 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/FR59R1762325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1352c62833fcbcdc265243f1e882f1ac0d3b8d381f834af0b34a8f61b9521dce. Chain 2 (Bitcoin): anchored in block 957541 (2026-07-11T08:23:18Z), 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/FR96X1730907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2872adecb65458f339820f6feb183327c8f804590bde52d392cf6fe4a26a1926. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR96X1730916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255fc72ebc01340f87275192f45b65604b5ff5372dda05aba18344b43b220b88. 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/FR96X1730925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8c23c36432936b44a08114adb431e1775306c14189cfba1b125d4d04d74615. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRX281714617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622ba43cc05c85f7bc9b721f4dd9152afafa44af181d6376dd739fdb9f9a441d. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:52:59Z), 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/FRX281714622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6047c46cd7d2c5c134d6eeca54fb8e321b6e6afd91938283d5e0a3e31e6c651. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FR96X1887198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1158b8d21c22caa1830dacc1b4f689a2ae7071ccdd7f44215c44cf8628b525. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:10:31Z), 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/FRX201843302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf7de936df799e63162be6d67275d53797111ea3119adf418a8cdc69fe85b5d. 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/FR59R1931565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e83885ce94e174c56a3a71024bfa2f2d8ed06a06e50c30007b01761c0a4b61. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:03:25Z), 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/FR59R1931566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07f0c14b21f5fe33d243df3ed67e7ebd5be5c480248023b77bf61b7877cfa8e. 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/FR59R1931568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfea5b033ca98ddb0a9e066446729f6a0327d97948c7d487e3632209e98ed91a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR59R1931569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239b2d431a175c54a1fc93cfb8d38142bedd281cce214fbd7ba636818fe1ecff. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/FRS182074558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d37b7f99cbc5ae3caad164c4739ac3e1457905b78e883016ae512193cbdbd5. 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/FR10S2235507.
Chaina Rupa Grohon Laguk Tor Maya Mukh Chande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52af98a3bf76112252a0ce9fd35f6b9910970e834bd16a9ba97bb6a98b04f138. 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/FR59R2263589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa932d00175652f739867db81878fdcc8e7a573c694959f7d8ecf6b8bb48793a. 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/FR96X2234913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c5e8b7912c2ece0ae1347a0261be57b98ee55283433b9a89e12e32b329f962. Chain 2 (Bitcoin): anchored in block 957541 (2026-07-11T08:23:18Z), 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/FRX202237884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98c5015d223e013951f94b73eb67f5ef8e5c0dbe4b31de31f6ba5ee1c34c4a2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRX282296567.
Ki korile Pakhire tor hoibo Moner Moto Emon Khan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc7dc1e1abba7ef9799953f07901d2143612398f8d590fe1be6aefaf8b0ef8d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:49:01Z), 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/FRX202384739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b81670bcdd14d2aca391ff24ee8fd4b64fca091b3a101cf485a3702db2aae1. 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/INS7A2387465.
Mukh Dekhiya Jaito Jodi Beiman Tore Chena
Rupa Tomar Barir Pashe Jeno Hoyre Amar Ghor
Rupa Tui Amare Vuila Jabi Hoyna Re Bissash.wav
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc02d037f41a5face12a8e5a5c85f6e3fcb545a7e62d758f29dc3d7ccc20ba2. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/FRX202543119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690252b16856622e43a2b58c0fb3bb2e07fc9257cc8511cc11636dec1014de25. 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/QZWDW2543813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc42a5b69a69657bac05e14c06584eaaf92915be9bd5c7321d1b653fb12d2a4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T23:01:04Z), 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/DGA062562812.
Buker Vitor Dukher Chula Dobdobaiya Jole