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 0xeddfde4a904b45a1f1fb4016dce4dbb8aa2e30e6804418294b6d1c89c0d3b2db. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea13ef17-afae-4f43-907f-cc7ca8c7dc21.json and https://artists.proofprofile.net/proofs/artist/ea13ef17-afae-4f43-907f-cc7ca8c7dc21.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 0x675ab3cb59b4149db30a29ac3e6845b235fb255fa1abf70e599ccdff691ce20b. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:55:13Z), 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/NLF711506741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb24c7409c7ae8a8652e7ae1533cb83a7bcadc560bbf6ca655335d184b6d65c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF711601748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0349f15f1e63a279d12308e385f9b0f058f9710e69d8550d5cd9e9e294da30aa. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:18:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF711602269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d1799efbeab9e5079a6a664d194431d0ea3889931a8a1d5bab6165a72355fe. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:18:39Z), 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/NLD681804144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6c8e56e57718999345d5ab4a5ecf36ba27ddbc459d8bd352d33c00f6b90109. 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/GBLV62033295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa026b8bb7f535307b886e16e7cb075baf6de5e57c0c96e43c4eaaec45267f3fc. 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/GBKQU2175146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdcb9ea7d44ae09e52ef77311b0368f1d1a36c3e0bd77619f5b704d8d5044ae. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF712200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1835e62ae5a9406a974de4195ac7e6678a17384e1541c6d885667b84db78d5a0. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:47:44Z), 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/NLF712202005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc689566f3c78568736b6a091e5e06555ec39ed73f52596b9ca051be65b6b6ca9. 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/GBKQU2297138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe140e4b2ac9f2fb4792a1686af68b9831712c836d1745975ecd59406c2dc358b. 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/GBKQU2493434.
Xplode (Mixed) - Graham Bell & Yoel Lewis Remix
The Best Of Armin Only (Live from the Johan Cruijff ArenA - Amsterdam, The Netherlands) [Highlights]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfce44d0cf63853e07318ea4bf7ba34bf19b93439a5e0d6f7680868c2c8c8198. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLF711909189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe471837bac819df52634c995e320e09543b73ade42521eda512bc7e91da71f2e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CA5KR2111559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb3e4dd6b31693df09d60bb1af9fb41568399c12cfbbd88457745839ae50d6f. 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/NLZ541900879.
A State Of Trance Top 20 - January 2018 (Selected by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e7d0c1ea166ecf5cbf870cc3f504261179afae5bfedc6f688737d4707d854b. 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/NLF711711603.
A State Of Trance Year Mix 2016 (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716bcc46c99f29e92f8fdf2cd28efab42cc848cc549923b410dd9c2e4d4c12b5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLF711609549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4557f27b037dd1f2eddc815e3c029aec54d40c9d70aa812bd88532ca28a5cb. 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/NLF711712256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a756ff1736d57062611b9263006c6fd98f16b237c96e5c9824665193011b5ad. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/NLF711606739.
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
Find Your Harmony Radioshow Year Mix 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b36f2ddfb6aa16bf24240007a041a5955dbd5234c0480359f346a76e0b40315. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF712000291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7076eecbb91216c07ad02c401b6e902ec47c89a095e9bb47e7cea8dd74ed116b. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLF711609542.