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 0x6ba5ce708b77357356c048b9861e0660c15439c7f56de1553cda3daacb0cd182. 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/6aa78603-b569-40ed-8632-225205a21b44.json and https://artists.proofprofile.net/proofs/artist/6aa78603-b569-40ed-8632-225205a21b44.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 0x97b09208dad7ced452f836b3e54c414a87225b747a4d3aadc33d986855511352. 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/NLD320500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1069367aaeccc95baf1622f889650c27887373715e4a2fa11139467347558d28. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/NLD320600220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ffbe7dbd48a588031810e082ca893afc2ec1f18b495ac1c7ee7485e41886f1. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:39:49Z), 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/NLD049915004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56be9a4368c64e751b95eb0de7951fe1ed9930121216becb11767325203f5af5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/NLD010100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a996ba042e07dca889bb24eba0becec81e18449f5c210f798f5f7ebf2a2661a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLD320500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a996ba042e07dca889bb24eba0becec81e18449f5c210f798f5f7ebf2a2661a. 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/NLD320500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b09208dad7ced452f836b3e54c414a87225b747a4d3aadc33d986855511352. 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/NLD320500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca2de806b241e65ae5eb3c3d9b9c3e8fa3d227872a446bc98daf99eb3f98480. 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/NLD320500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c03b48ea6b05b1228ec457df55cae2295d8c29543ba14f45e44384e9bfda7d8. 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/NLD320800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c03b48ea6b05b1228ec457df55cae2295d8c29543ba14f45e44384e9bfda7d8. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/NLD320800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112b2d5131c2e9c5c4368a77d6423ec5828abf490ade88d6813cefc6935589a8. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/NLD320800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e15cc7db5fe5362f8d92c119ec44a213cfc70992153f42c295f59177f8324ab. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/NLD320800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51df2ecb23b09c55116c7fa35b8eb8066fb92f915d3c7f03c4e6513e29c0d0dd. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:44:10Z), 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/NLD320800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa1659357b6f187cf31e0a030f1ed35b3defee07943ddff69d57380550de366. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:46:13Z), 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/NLD320900073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df739c24644a830a275585555f5d34f93a4a7bd7b2c804b30fdc2940c830af5. 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/NLD320900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401d8e1b6f6d9838a354908d2d16a1dcf6361ca18ff809a71aacd2898a6f41b1. 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/NLD321100284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3498301239edea3a811ffde9819a2a6d2854f4257a9fd78b454c351321314e9d. 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/NLD321100281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe606abbd344e78ccdfc153e842df8b5198b126c3a71dcf08349a5937c5d5ea7. 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/NLD321100280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3498301239edea3a811ffde9819a2a6d2854f4257a9fd78b454c351321314e9d. 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/NLD321100281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f57ece4e5f4ebdaf3b7e95f3471486a643fdacbf669054669c1e791cf89f8c. 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/NLD321100273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f25c60e6809d44af4721b6b38c80054ebe5c05cee58aede5536fd365950164a. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/NLD321301770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7785ab62d4fafe4c02aa66d525efdd9d721a78b357f05ac42d21ac13347bfa4. 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/NLD321400219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da911b62effac561bfea552925a97b5e81e46a916c10df1c641ed6fbad248e7. 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/NLD321400222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869451b7ab34dc47d656084c8367a166d037fa07c16fcdb6595a9f7685299ce6. 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/NLD321400223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab02f30c787ae33e19e191d26bc6a070017b7d5f1a81caf0388de9683ca04e06. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/NLD321400226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd153ffcf0d4d368618c0fe768beb8f1ce01ad9f640ead1348b4594bf87708fb5. 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/NLD321400221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1ab6931ee0a09d0b9dc133db6e2a3cb131b0bf922cbf098a38dd8ff8332b16. 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/NLD321400227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b952595626f04f1407057c805bc08bc9e4c6a305351c60af0603553b636a13a. 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/NLD321500658.
Heaven Holds a Place - Live from Spotify Amsterdam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5910b0cdc658a7ceac5a34f84d648d1a232c4f57986259cee8a84c5949013552. 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/NLD321500659.
Spotify Sessions (Live from Spotify Amsterdam)
Live at Hmh, Amsterdam - Theatre Show 2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e36d9e005de80ee79d21da2e1ebe9c05e3d6ecd9be3bc578168b3af2560884. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:28:48Z), 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/NLD321600678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fab9cf31175e4531a3fe187a9fd7bf96a903beb0d6cf08f57e95aaf96cc1a0. 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/NLD321600681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f54e147ef0b0493e37170529f8889804fcd6c20283e5676f6ff75fde3fbe29d. 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/NLD321600685.
Racoon - Live at HMH, Amsterdam - Theatre show 2016
Racoon (Live at Hmh, Amsterdam - Theatre Show 2016)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9be0703dcf72e329ee6c7d222174e93c88afe26f0d96343179ff9c13b796fb. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/NLD321600669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8addd282ea3279db1635684dc2a3f810ed0d3225ed94effda1dde907b0a94fcc. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/NLD321600670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ab2eccbc00eb97c28f1fbfab027ec50a74183b7d8b341f215bf1463df42fab. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:07:27Z), 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/NLD321600671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f32f701297a7f91d539c2b49fc4ad783d893e829007009cd3a52788465b036. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/NLD321600672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183f792d29299ef27f891130fa036a0fde8e5bda1aa2e649c04a67c71b1ecf9a. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/NLD321600673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebe67e671d5c56a25d409687c16aefa6a2388428f04365fb4e74c6f29eef81a. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/NLD321600674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87f7a413b6012a6dedc336c4c19c43fb96a1e48dc8a8796370cacece8180429. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/NLD321600675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244b2558dc2e228e64f74785418e8759ec3b59aeeb4f920feba0a8cf7ce85a97. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/NLD321600676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e71cafb00a3fcac4789d5758ebf27f930d3428a0af78c3a792435ef50b6de3a. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/NLD321600677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e36d9e005de80ee79d21da2e1ebe9c05e3d6ecd9be3bc578168b3af2560884. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NLD321600678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7babcd1609f54a35505bcef25d5f7f849e2e4fa284b8b4df45e407669c4a4ffd. 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/NLD321600679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44db09985ae671a0adf2b1e1eb4e1b8d07cbedf5f65ce383a985b124926e445. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NLD321600680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7ec167068f0db4f09c0717e9f0aa6c2de67d641ea80107cfd93ca8c25142c8. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:41:32Z), 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/NLD321600683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f70d12d63efe243c90455c65ae088258a0c9814b92386a3e7f081ad4d421d4. 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/NLD321600684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f54e147ef0b0493e37170529f8889804fcd6c20283e5676f6ff75fde3fbe29d. 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/NLD321600685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fe541fc1083032754b2f6e8f532aa3d23a63cdb067ac798a30eb5da6bcac32. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/NLD321600686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3028f7d42435e524b9f07c3acb0ab6525d93a3223ef07cbf6b63b53491274df6. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLD321600687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79800b73dc9125f91b8dcf401facf29b7b9a3429dfff19f1340605d4d6da2cdd. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/NLD321600688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f123b38bd335e0cc0a2a2a2ea8027930f36b42754096341e4c466a53e9477e. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/NLD321600689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fab9cf31175e4531a3fe187a9fd7bf96a903beb0d6cf08f57e95aaf96cc1a0. 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/NLD321600681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f54e147ef0b0493e37170529f8889804fcd6c20283e5676f6ff75fde3fbe29d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:24:13Z), 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/NLD321600685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26757f315e2b6136c40d7f35faee1c8e1d4ff3aaed52a1b3160e33ef24f2c32c. 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/NLD321700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887dd443112690fe836d3eecfd817d42e295464130700117eafae86b5f01dc65. 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/NLD321700094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b082de5bb9398b1bc9935da509b6b59ea55fdc237b8ca6a2fb4d7be0b75c04. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NLD321700096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce2a4ff3e553653f0fe184cf3f682509825d0964cdec718d042e5ebcec74127. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:49:05Z), 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/NLD321700098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c3f320e8c99e912f0fde8e9f7cb967011f87a7ec188a7096596bc7ee4b395a. 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/NLD321700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a25ececadd3cff1affa0074aa5662fb72fd90e3693610952fe97c43b83a5558. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:08:03Z), 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/NLD321700095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605670b4ecd2694229cf78b5d9caf581ce988fc4c615498539d895593cfab6cf. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:58:03Z), 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/NLD321700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4e3b9cf36da0d25b4a7b0a3007230364f75aba025eb9922c0189ad4e67d69f. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/NLD321700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e477f4189acc5db52e43a1c234f1925b9b921c602c480c55e78c4aa484cbc0. 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/NLF710600879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e477f4189acc5db52e43a1c234f1925b9b921c602c480c55e78c4aa484cbc0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLF710600879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fe07eddbb5ba2d27ef55055e4ed9bcf35ca5f03d6b63265641849200ee812b. 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/NL4FT2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fe07eddbb5ba2d27ef55055e4ed9bcf35ca5f03d6b63265641849200ee812b. 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/NL4FT2200003.
Jan Douwe Kroeske presents: The Best of 2 Meter Sessions 1987-2009
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b2141af6bca11e71d082edc59496cae6c9edc958b5b835cdd0fe297b0812bf. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NL07C2061827.
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
A State Of Trance Episode 281 (Year Mix 2006)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e74df2f467fa157f47dc5f95d6fa2b069ed533e39283ac4643863c22460ceb. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NLF711313650.
Love You More (ASOT 1123) [Service For Dreamers]
ASOT 1123 - A State of Trance Episode 1123
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7cfa58f1d9da45d32d969466273448ec5b493d4b3f89fef4c10b221c9cdda6. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/NLF712304582.
Love You More [ASOT 276] - Daniel Kandis Shiversmix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4368d08a1c4a7c938b9e5eeaaebf19523fb056749470219c0dd9d19b4c250e. 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/NLF711307916.