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 0xc87ee0df9992406bbff3b37d46a58355f1a83c603d883c3270ed89c24d2f6175. 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/3d5b4b81-e7f6-43a1-9f50-f83affce7f29.json and https://artists.proofprofile.net/proofs/artist/3d5b4b81-e7f6-43a1-9f50-f83affce7f29.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 0xa1caba2c6af2b305aabc3172f56d5aeda6761a278ef0bcdc1fbd82f5f90af917. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/NLE801600332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6365057cda751abfe7d3e66910224f6fd2f53f64c951a4402177d321c89576d0. 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/BEB682500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa8847ea98501fd455124cfa25449560a8d5d83b76679190fae2b1fea897306. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BEB682500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24e5a92920f93a5bdc861d825ef402ec2bf97b3409d695a374172e9c6b88f32. 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/BEB682500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50efd9cb050f17e19caf8e602c35937444abc4f2ed42eedd56131dd39493dc63. 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/BEB682500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa8847ea98501fd455124cfa25449560a8d5d83b76679190fae2b1fea897306. 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/BEB682500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6365057cda751abfe7d3e66910224f6fd2f53f64c951a4402177d321c89576d0. 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/BEB682500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8f7c488e504ee247591142d5aae4a45538c9aabdbd501240c803f408b52490. 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/BEB682500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba6a3639b412faf0b28674a7279be5ccc1cdd0f4b82ff18e2f1fada871b104d. 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/BEB682500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50efd9cb050f17e19caf8e602c35937444abc4f2ed42eedd56131dd39493dc63. 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/BEB682500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8798a1712a99b6955a89f0f89c60551370b277dc13e1d75074da9f83618343. 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/BEB682500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24e5a92920f93a5bdc861d825ef402ec2bf97b3409d695a374172e9c6b88f32. 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/BEB682500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8f7c488e504ee247591142d5aae4a45538c9aabdbd501240c803f408b52490. 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/BEB682500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba6a3639b412faf0b28674a7279be5ccc1cdd0f4b82ff18e2f1fada871b104d. 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/BEB682500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8798a1712a99b6955a89f0f89c60551370b277dc13e1d75074da9f83618343. 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/BEB682500022.
Intents Festival 2011 (Hardstyle Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1ca9623af81720ea0407c16eda6a23c2ac13178bb7ede7053628d8ab38fe9b. 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/NLS761100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4c367677d1629371f23a55598126339003e623b16c8883f5205fe8cdf3c60b. 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/NLS761900340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf885891f9e5f913c70ef085434438bbfdb999c4cc533b1cd46cc35fc2c3ad433. 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/NLS241400984.