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 0xc6050bb2f940572d9a6ec7d8840346a94c5f29924c2cecdd9fa1e887bd45a47b. 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/302ea419-0949-45d7-abd6-c13f733b5cc9.json and https://artists.proofprofile.net/proofs/artist/302ea419-0949-45d7-abd6-c13f733b5cc9.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 0x7cfb64716ac400e8377fa143db7937179d10261805b0cfabbe6ada5aec5c589e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZ8LD1705262.
Game of Thrones (Cello and Piano Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd163ca2a5f20dff45cc3cf5c6d33392883bd6414c169acbc683f23909f7e6397. 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/QZ8LD1708425.
Can You Feel the Love Tonight (Cello and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e70fe479c3d3893f5baffa7499af0d416ed4c91869ef4c664015d66dab54d5. 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/QZ9Y21723405.
Can't Help Falling in Love (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e77a577a6de5274c421c55ba9ddd8b86ad1540c60befbb703cc83fab9253c8e. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/QZANL1745228.
Beauty and the Beast (Instrumental Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849075bafa3c825fc40174e5d2f22921dd6dcd5bccab580b3564b2641a9cd6fb. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZANL1776179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b3a2f5ee4b4bb22260b4bd05b21681f8bfe48004a5ee549bb91c45d30e4074. 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/QZANL1798481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25916077f85af7bffaa20db617dcf3851c9225cfc8651fe3bc09f68333313a7f. 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/QZAPG1714059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a146bd71678a83f0a2a067342de273627ef92b885fd7a6d6a75a4ec7dafe91. 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/QZAPG1740612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462603926da6c633c9532edd13ec870eea8f9c9cd0c49d394d2978e1d1fffa3e. 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/QZAPG1750910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac99cd51501f09cef071744f406dc1931b0793f2c732455ec9780e7dfa336d74. 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/QZAPG1829762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5610d11117cf7ca447ad0fb63b336979e7298ab8aa4d27295bd836a1ba8ae65. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZB4J1815355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfbd358b2b927edf60494d2f310e7c1726f7b62bce68c6707eb74de7da6b910. 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/QZDA41812816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8ecdd1650f206c624f686b172ac17e859c4130ca125dda34f30fbcf7b001de. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/UST8K1898426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabf7714b9ee2eb024f7312fc728731023a3df57944f6f506f4e1b8d8d1ed13b. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/QZDA81975895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7674a795fe642cc7ec0356b7d3e52367c98ba7851f264ea9d49775b46fc3c25. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZES81911031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4646ac696f3236dd0bce173356bfef19cc82ec1b94ce3b984fcbd9bf1e6c42. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZFZ21980565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a934be9db8b31dea86e5cf543c0de170162843106c164c6d89d4d9e8ef22bb2. Chain 2 (Bitcoin): anchored in block 957556 (2026-07-11T11:14:07Z), 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/QZFZ31958597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662ce9a74ba1f98447acbd4451d9dfc86f8e1beea0c8b03a0d680ae8402819bd. 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/QZHN51927604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c63aac833e7e733a03d024c4a8fc4487cddc3866e558dbdfc2b56d7eea1a21. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/QZHNB1950586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f22b7b447e15d3690076b26339a995864382a58e904525ff17abef47043c1d. 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/QZDA52056823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887c4634091dedfd5b02105b4280195d9ca853889c61f3e138531922510e150e. 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/QZHN32060809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9866f110cbaf106723e23a5ae2e863e8f901f40c0d4b10fb54262c900dc74fba. 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/QZK6Q2023974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859a4e7dd46b8f894d50d721672f8cb67c261ffd96d1e8ee1f02449f1ef063c0. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZNWQ2015843.
Светът е за двама (Инструментал) [feat. Tanya Tingarova]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3474c1e03aff31529ef38a86177571402a10e7fcaa783ca5c233e08f175658. 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/QZK6P2173214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2caf699acfa946f8fa613842a248f06596d8bf3bed4de2e95baeef75f9982128. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QZHNB2219544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c88a5ffba9cd1cc161b18c760c1ad931c0803de1b08f36c509da27d094cd04. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/QZMEN2245448.
Quiet Christmas (Harp & Cello Instrumentals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde12792f36a9768372f53ee83a6f115b049f933fe7398a5425515f81b820e7b7. 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/QZTAX2225892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d35fd4443d986ff08b3bdc91e05ab35143eafdbf5f4cbdb77ac1ee2469fe994. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZTAX2225895.
Annie's Song (Cello & Guitar Instrumental)
Annie's Song - Cello & Guitar Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b3e2dc248f1e07915cd1e7a8d4781078a3c5d18883680bfaf997bab40b0c01. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZRP52306568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08b304fddc6f6ea2695f23836253344d228c77d902d1b2bc96781a313b45ac4. 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/QZRP52410581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2d884eea80c6c6b53e37073abbcaf02a7cb8e21ed8ce825ce68aae473df4d8. 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/QZWFM2411860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9d1c6b64d863ebe067b857c86589d21eda4f4b3287e57d3ade1e8bd0e2a4a5. 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/QZDA62569967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645d0e32f4e1baf92c6733c273a558f4a948106df9020b1bace7fb81c7723824. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/QZWFT2510271.
You're Still The One (Cello & Piano Instrumental)
You're Still The One - Cello & Piano Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c347f38caa6c71eedfbce9e18c37a9a060120ba43b87a07cfff6ef2fa57578. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZZ782576479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3daf1c1f85a4a992448706b034f6ac4819cd6313a49d148f3c6455e13ae4f15b. 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/QZTB32313118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17538b600408c0f5650abfa3bf824efc5073b8e17bc8fc9ca608726587b8eb88. 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/QZTB32313119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6b4ddcccfcbf731c2d91f299e5bfae797bc95ab944431e02c72f7e52269723. 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/QZTB32313120.