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 0x13811a2532f860fe20fff40817a378de94809654fa21dccc97f4e854bb64ae54. 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/2a4761a4-62ad-4c44-ba5f-7c5be44b97a8.json and https://artists.proofprofile.net/proofs/artist/2a4761a4-62ad-4c44-ba5f-7c5be44b97a8.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 0x0d4bc5b5b857a86be67da4f1a61a6bc1ee450c6214f998b8255467cf585a45ee. 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/CHB701600103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fb3ef7837c2349a26192ab2051d567279cd8254f68eb1a6e5e85839f950c0b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLF711608784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b0cbb255feb80d33b1db93e36c268c6646130b4ca44b25eaeb500130f21b9f. 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/NLF711608089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7a4d711cdb7a7562668e35ddfff0f025f3dadd031e4c8eb5493efb9472c630. 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/NLF711608539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e20dc6587949ef4eeb35d71abe664e00e7f4b65edf6829bc976e4f56d04675. 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/NLF711608450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7819d35673d199c0b04a5ccda37d0159ccca3dcfc42623960497b6d57bb99c. 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/NLF711607708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb100e2a9a4062f4760729134314dd245e8f51a971ea06a06560e63dfebd9ecce. 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/GBX2M2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfca13b05b650508efd83ef3d46d11a3819117eec1f2ebaf68b51d3047c6da13. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZQAY2456783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad7c72a433a0534afc4dbf55e69e2c3cc10c383abd7cd1765c86e2176162a7d. 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/QZQAY2471346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138523fca4c5eb91cfeaaddbc30ccf7c7f226bf9f4e2434d780ac5555db08241. 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/GBSXS2300092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834037565285d6b97e2d990554525089f73fce915aed2cb698b6189790185274. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBX2M2200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86445e9534793a051061e14a8c896bdc4d5027baf505fa6d9af940be5370710. 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/NLF711700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a8dc66f301bdde7f7752120a6115c73ed0e59063b03f2d530ce4214965fd8c. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/NLF711604601.
Armada Night Radio 139 (Incl. GFDM & MD Electro Guest Mix)
What Is Love 2016 (ANR139) - Dimitri Vegas & Like Mike Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb822e5158070a1b00c377a73010f48486ef9805aac495dc681c579ad245d344c. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/NLF711700382.
Discopolis 2.0 (ANR139) **Spotlight: Armada Music Classics** - Original Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3f8e0508a06e9dc070fa47d0713ea3f547be46c358d8b79c2b6fd2f0ee1792. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLF711700391.
Don't You Want Me 2015 (ANR139) **Spotlight: Armada Music Classics** - Classic Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e701bc084377ca20cc6bd54403abec9a30d69d4faf48c9d35869b982487771d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLF711700392.
Armada - The Remixes 2017, Vol. 2 (The Future House Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dbc4910432de817394acbf5adeed550f4e8f5e5abb495cc41d1567a948e69c. 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/NLF711602400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bea22d24778d0f6aee4c01ba56146a98f496c21b7e28a4c9b05b914aa013a9f. 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/NLF711608671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5b3144f28c6b91b1390b9ebe95e27eaf80ce6e8ea5518e7b070826c547d8e1. 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/NLF711600329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca497f65014aee65b0c437da7512752e6e74d00bde9a2890ecf9556ff8873e0. 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/NLF711600427.
Deep House Hits (Mini Mix 001) - Armada Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c30bdf080ac59e174cde46e7b9f856798be291bd39cb97f92d23d382170f18. 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/NLF711602606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a5ac4ec06218a34502d806c9d7a99c920f039d28a5f41ec1d551c1175955e9. 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/NLF711604101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b83c9d3c76fd2ae2fdf9cc70c9d4ca11c44cc8751e99543683304226cd7976b. 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/NLF711505287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e18e8ac5a5c3a93c10da6fb60643432ce26f66ab89bc2108055799f18273fc8. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBKCF1600470.