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 0x5e7a7e4bf21609234a7e128ec1caf848c21dc05fe5cd7d6168d2bda35dae67e5. 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/411599b7-f1fe-4fb4-a567-d7076b116db1.json and https://artists.proofprofile.net/proofs/artist/411599b7-f1fe-4fb4-a567-d7076b116db1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Can't Hold Back The Rain - Stoneface & Terminal Radio Edit
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 0x9ca80e967f45aed20adcdda595a5a500198cb8b3cd74f8156b3e28869ac817c1. 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/NLC731100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aeb8709a9671b071afb0b78ce72a68b37eca83cdd4f660cbc9b9481a75cdc3b. 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/NLC731200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16e3b903477fdf20189b417707e1a7146e06b265b37d3d2de3a097c0561673d. 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/NLC731200170.
Winter Stayed - Armin van Buuren's On The Beach Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe31cef021af5b9fc6ade76084f0bd50154ffe76f43b2e5b06761ee700d4ec03. 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/NLF711101980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7a9c61df92dd81f361ffc79bd1077809e80e449d31b17f85793439ee35c137. 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/NLF711000871.
Ana Criado Collected (The Extended Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd752ca43c84bcee6b85c23ee16e49432175eb17c7ecc5982c3f522fe647a76. 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/NLC731200181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4066b92be95dbea91a438bfdffe77143fda9830394a321dc1f6be95c06ec3fd. 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/NLF711100635.
Dancing Sea (The Madison Dubstep & Fireball Remixes)
How Will I Know - Daniel Kandi & Dennis Pedersen Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe459007b218e951627f1d3d86e0cfbbb3475bf4f93ba9661d7b07ab5d29b8b8b. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/NLC731300263.
How Will I Know - Daniel Kandi & Dennis Pedersen Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c95dc312d0aabae304ed417d7a325a64da0766e064862fb011e79e02ab905c3. 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/NLC731300264.
Winter Stayed - Armin van Buuren's On the Beach Intro Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6a0fc9b81da6b96050aff4a694f9a206bb9571aac7c66d8c6025039507558e. 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/NLC731500329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd709e592f0d13534d04b65e440d4b6285a58f6274eb5e57ce7642db48206c3fe. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/NLC731500330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fd6286f2bb2c696e738027086a6ec4a579b569b133e25864198f7f2d21f392. 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/NLC731600392.
RNM Sessions Chapter 17: Vocal Trance With Ana Criado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514c1deed93fa2d16474362b41db839901e05f66337d1e86470233218adaa25e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NLC731700338.
Vulnerable (Nowhere To Hide) [Mark Otten Downtempo Remix]
The Spirit of Summer (Dustin Husain Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170f8e8f40d6293a88c91e133d2c0956eab7ec92d534d7e012d1c7da42f4c349. 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/NLC731800217.
The Spirit of Summer (ActiveBlaze Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c490533083298c1caf490afb5c1c55bb5f7589b46c5483897e25de1f6e0479. 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/NLC732000586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b1be870f0c3f41f2fa6601cc98720fe91f8b531467dfbae618bbc6df88a364. 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/NLC732100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479f2aad15e58a4277dff759378c87d8d60e318d00a0ce36e47254e91c2129e2. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/NLC732200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73c234a05c2c7b522a8055df266b3115f2ec0a06d7b39aba69fc51eb11e21d5. 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/NLC732200270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5f6af3ecbb7f2058e951300478986544ffb1fb765bed4f98248a8cf8b4bd52. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:56:40Z), 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/NLC732200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73c234a05c2c7b522a8055df266b3115f2ec0a06d7b39aba69fc51eb11e21d5. 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/NLC732200270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479f2aad15e58a4277dff759378c87d8d60e318d00a0ce36e47254e91c2129e2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NLC732200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170f8e8f40d6293a88c91e133d2c0956eab7ec92d534d7e012d1c7da42f4c349. 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/NLC731800217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514c1deed93fa2d16474362b41db839901e05f66337d1e86470233218adaa25e. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/NLC731700338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda44570963cbecf0569e1d34dc03bb5341c9d2946562707291baf6ca93f03bf1. 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/NLC732300316.
The Secret Garden (Seven24 & R.I.B. Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf2463fa3570062a78e4b82689426854d5dcbaae716ab9a30574282722584f8. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/NLC732400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9279c1b33967373d6df8c031ce9f3eef945217d17845be2b94b81fdc6caf567d. 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/NLC732400312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510e316e9cb51b8a330374159b13393749f1f6381e528e44320cff749f88a9b2. 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/NLF711001089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c72cd996bd36e59c08b8b5b51b175dc2bd7c37d2dc9165253185a57dfa429c6. 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/NLF711103059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25656019ec91b931173beb0154d53170d2897710969c2e236f122b00954dcabf. 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/NLC731600100.