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 0x73077e2612143a394fb36a7c38d82d005f3d31b45fb5615253a33561370eef9d. 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/983c8a1b-be5a-4abb-8ea5-d0c0a671e89e.json and https://artists.proofprofile.net/proofs/artist/983c8a1b-be5a-4abb-8ea5-d0c0a671e89e.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 0x1f8f76e3697a5a7e460613864a4f4cfe67124d290f5bd4896548287109855af8. 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/CAMF60600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467fe077846fd5a2be3398d27c3a4cf4fec815f59ee41e5d5e682258004cc073. 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/CAMF60600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053415ab400090ab99310e2ac279bfa8f5487b0af5e004f6d747d05a4cdda29b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:43:16Z), 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/INS189926234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca2e1709e95557d30cd6a80a51320ec4d00f82dca12cdeb1a83a64a2a75b9c9. 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/INS189926235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332c8d5c3442efc2d3fa1e91b3f61d75b6461fd3f95f0c34a524b293b7432f9c. 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/INS189926238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681e9454d95b161f6526ca265d7c03fd89d3b833384171875b508f821deba130. 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/ING120900607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b31e8125e2e97e1141d7b688fd4408844e92e1bacfdff8c50da20a21b371ed7. 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/ING120900610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65170c05a2abfd352512acbd1f56a9a306f334b98633ee042c4f5b4b5789664. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/ING120900614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa8820c3a14f66e3e4fd277648981fcdb00fdf5d7e935c17d60cd5a7149314a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ING120900620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546924412400db6c376e3610f1c17b2ee636c088aff47bd6a97836c165a597d2. 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/INM431100422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a990501484e9cbbce057327a346faa9c935a3b279e840c9d3e6bfc17a85dbe1. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:14:07Z), 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/INM431102721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3ac145d3a5f5f02cd9910a6753c06c82e2f318b05ea3d5b884e5356264ec8a. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:46:29Z), 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/INM431102387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d6d2dac6ac822c72760874e9f9f848e54985f21c6b217ac4a0d4173c697353. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/ING121200185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7b8d4adf430323381a7c145b52f8499db776558cd352098d17a469332ea944. 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/ING121200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134be23f1fb68178dc1aafb1a486ccbf988ca35876dd90471ab39dce4e1c7f35. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:49:11Z), 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/USA371647072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec67b0b6abb4c12085090a529e87db9a5cd4c50ae00f54408c62051e6c4dec0b. 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/USA371647076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172078e7b02b742dec8bc239b97e7c6dff3e632a306ea4e3422adb3925c35a4d. 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/INS181303172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5611b86643d5b2c5b09a28fa2038f5f313277f6d3e53e090038e52e70da4e793. 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/INS181303179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8656ed5d652ba078712c8ba315b83f01281c5ecc53f508f79fdcf34db850c2a. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/INS181303183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed5bc980d102e2bca664e97b5d81ea4cba4084f91706bdaac73182fe7b790c2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/INS181303190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868a8cc1ca94fa9dde06d1ebd66c68a5d4d9e1b76a0ce8acf931fdee17bd2f8a. 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/INS181303206.
Russey Hoye Yaar (feat. Sain Zahoor & Prince Ghuman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1844c771e3186190ccc9177b7b4a8f05c9b6a85ff344a64e9e4d3f4fa42327ff. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:52:33Z), 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/FR59R1739155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe205012996493a350ee953993545839d12a4d5a4fd9395cd59e52cd3c5738e65. 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/FR59R1739164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb26089eda3e265f601b0e14b534a9768bc00ca03880e45968ad57ed528bf2f. 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/INS181900865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974c28ece4f7ad56431ec628ffe5a4b85bb516f54306aa04beb5505f4f5d1e25. 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/INS402004798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07598521c038cdb515e59e73360d6113044a6d683f45fd1887d8d8ff8867ca7b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:02:16Z), 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/CAOJQ2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598be34ff0a40500d92e33b3ff1778a31a90091310b0626fab55d4cbd41833c5. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:39:06Z), 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/CAOJQ2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc38c3764a3748b6b41e227029566605f5eddcf12c4cb1592ecaf40fe29dc15. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAFE2098956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb43d722330641ea5e5bc9662732d72d12370d8e857e80ceebb6deca0608ab3e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR10S2106182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048f8af4bd1395946a2a822d1dd4fda9fa9815a6e83b44cd0c834009ca0dbdf9. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:42:42Z), 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/FRX202184011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0c8a932bec5369183a9bb169d5caa8b8889dc963876bed11c6aefeeeafc475. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES92302000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc325ff515cdabb90af3ee4b688feee210e0ab093331298f3e98a6b6a69043965. 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/QZES92304424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521ea821d5a74a9b72e47bf16df45c3b6c48fb49e474a168e3a6211fbb1cd40b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:47:36Z), 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/FRX762369887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a483be8881abbaaf4f30dd6587dc9bd3cf1791a8ad8b1979ca3119a0e75bbc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:11:46Z), 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/QZK6G2378959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0645bf8b5ef0e16a25934acda25e944a34c9c5088487f13486eb0e328859cdf. 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/FR10S2423193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0fcc3c62b54a451c6f6fdbb54bf25138a27851b8cd24b9c4e24609c740d628. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:45:59Z), 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/DGA052414557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc089ac14dbe4fd65cd7e10e2a2be594cd27258bcce8ca507c49afe68cbfd470a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INS931402623.