thumb|An example of a piece in tempo giusto Tempo giusto () is a musical term that means 'in correct time'.David Fallows. 'Tempo giusto' in Grove Music Online. Oxford University Press. www.oxfordmusic
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 0xbe96ced4b3ebf36d7956e48a2a75e6b4ee98baddda98657d72eb8bf392bc8289. 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/5cf7ce66-81ac-4ad0-90c4-e566de54169d.json and https://artists.proofprofile.net/proofs/artist/5cf7ce66-81ac-4ad0-90c4-e566de54169d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A State Of Trance Showcase - Mix 003: Tempo Giusto
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 0x161633f94eb8d627c480c27c22e4b410a61c570ac13730ab22691e1e543b26be. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLF712004888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c71814688aeb580ff5bd4f2f17e5ccc4517b1ec8d37d9a4a2cb44cd914b33b. 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/NLF711903222.
Let The Music Guide You (ASOT 950 Anthem) [Mixed] - Tempo Giusto Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6335b0b25df6e8169b92e45021161fc1e22422c3aa019699a1a6cca279c4bc01. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLF712004889.
Let The Music Guide You (ASOT 950 Anthem) - Tempo Giusto Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f33a909fd934d4ba9b1d45b777bdabf68aa1aa3e3e655e0ff7f72ca40d6679d. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/NLF712001399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc960a3d50ce145498956bae9635df153fa047284c8d81f4c52da33ef9b9b2f56. 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/NLF712004890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e4cf1c9ad63f9886b2a83b7b2c28e1edc989ec1fd807c7f13b78ce1da97950. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLF712000840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403bec6eae4631629a5c10dca9ee84b8b67c2bb024be19b355ae5ece3c328b00. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLF712004891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb035ec9288b487eac5b30af5b6dc7785911ad021e73abef0d55252e07e51582. 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/NLF711500953.
Solace In Your Eyes (Mixed) - Decade Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf761bd20e412636052f0016e22c04ee4e6ab64f789ab7428a28fff90db1d0171. 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/NLF712004892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46919d484836ce15fead76067017c23dfa134b0e2efd2160a30ae548ad217f9. 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/NLF711808043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecac46ad79c01963d8b23668adca3dcc753bf2a68d1500963957405a863dfa72. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLF712004893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbc09a4f056ffc7ec63926963351533d7d6273e2795ea4e7a53034524cbf9bc. 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/NLF712004915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f3fc4101174ca9e8dfb8b7033f387c591e28854ba8a3af201212604be3eedb. 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/NLF712004894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c496769c43f98faf754524f9a762e96fa74da325a6bc9b04fdff12e49408ff9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLF712004895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63633645c0679be567994f4ad3c5ce7b5ada4e51c2bc9bd2f1d3cfeed9bd1501. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLF712004896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5ef1b7f9103d520f64ce9150d7b6891771c437b4457e85c2d2e6a50bb4cf43. 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/NLF712004916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0994973954f6079a35967699033b0f25705a2add6517072f9a816d86ed126b9. 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/NLF712307731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56a4da58b1fae0e604430d7384fe23bba1ec72904579b5f3088e9b2555b3a08. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLF711909593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5da57dc18ed8168e8ba78020817e2a1968e7281a44a483682e285735f304f4e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NL8RL2318419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602d46d17dee6b37050935f6ee025a967b140a547cb11d81778167688380fe38. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UKRMQ2300345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36da702ad4bd15ba5f73ea36c167ca22ac3205c0d2341ef1e40724074ca7284b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CA5KR2294383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278e77c621a8170a1395d062d94e6606420310a71688f8efa65e868916482766. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CA5KR2260349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6923da5098fd2a3315686fb20f23e130928ecffd10e0ca70d5163097276e34. 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/UKRMQ2200618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2bc2b98b4e2054fc2bb849079a8c3eab88045c34ae398cb01318347a3b6039. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLF712200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce86c6fdf5979adedbbeea734065b65a5416ffc0b0ed1042784131abc4de22d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLD682102235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3152330f491d069a1356a3c1ef5eec59d8e7a4c70eae798eb2f4cb1b591e95. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLF712011910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f8ae1fe97a2e243bd6a7372a97d0fb3e5503bf047d8a7ffe19aaf3365ac50e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLF712003368.
Mr. Navigator (Steve Aoki's 'I Am the Captain Now' Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e4cf1c9ad63f9886b2a83b7b2c28e1edc989ec1fd807c7f13b78ce1da97950. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLF712000840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9c8a9bf14ecafdf4990cc9c40a5e8e469c39290a035da69552bd96c3c67201. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLE711900762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0a86d384b8b7ba217e1ce2fe6e49ea452505cdf092c55dbd693344f74f8c76. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLD681903447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c71814688aeb580ff5bd4f2f17e5ccc4517b1ec8d37d9a4a2cb44cd914b33b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLF711903222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e85667b47933744423b557ebf961b0fe29ac5eca4c5aab605c0e006de77631a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLF711905138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54c14eedd8ff52c1b61239946c7d8348e12f3fc7120f33c5252b4e7e530d787. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLF712002262.
Mr. Navigator - Steve Aoki's 'I Am the Captain Now' Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a318a814b646a641adb7e746b4d34265607fda80500439361caa5bf9bc014a. 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/NLF712002069.