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 0x178a440bc4459a3895f0322147b84c8818e86171b713d9f94ce2ee77a614a879. 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/b6e0e6fe-b128-4da5-b30a-0b7c3918b457.json and https://artists.proofprofile.net/proofs/artist/b6e0e6fe-b128-4da5-b30a-0b7c3918b457.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Sound Of Revealed 2013 (Mixed By Kill The Buzz)
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 0x0f3e5fd40ebbf8766d7f3c0fa8b180524b377a9ff9fa88609bd821807063515a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLD682201569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107d8a36ef3c6cd79b5ed3cd1e53e8af052d4e852afb1c7f371270cb2db7a94a. 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/NLAM42100158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1c1fcf33661da1e1f2d9644a7662cb4d974c63cb76a9a03ad51883325c8d0f. 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/USA2P2026566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8bf788ef758fc682532676be30cd5380d29c1007b8c282b9aa75a63d9e3ad4. 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/NLZ8V1800344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2b21b237971cffe350eaa53ef46321e9a49ef38dabc261b120fe318d828858. 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/NLQ8D2000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc592049c5353efc6240fea65184bcd5d6ec8de10905fe5b8fff19ebeee6da45. 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/NLQ8D1900273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ffd0db358226007ee1cca62b2f54bffb2c37654fd5ef5edd66bc8d97ad8736. 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/NLQ8D1700226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18ba6bd10c0c681ee0bf2dae9a40c31b44eff77c6794b839fd4f65e43aaef2d. 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/NLQ8D1700185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e56f5d466c57e8ecf83dcd210e8133d68979e23ecf5275c57551dc7f6a545c. 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/NLQ8D1700075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32501728e9afe93b447463e2056680d433933096e0c0723a5dbf91eeafc3459. 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/NLQ8D1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4954b96d35135c1062b34687253b966f770f8506e4040525704e982e26509424. 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/NLS241600810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bfda62bd8ae52a0b1aa3a708a2bb83589bfb29bba2f1b1ad9fda9d63442e5b. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/NLS241600809.
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 0x12963181cf1edffbaa8373105208b260634fef4a335dc86001a6c5d105cf4ae0. 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/NLS241600435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092fd81f29c42cc1908c32da5540fc3db26911ae66651c74ca11723965a25e89. 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/NLS241600434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791ca948b4b5c5e62fd8f7f5be9ef289dcec72dcea3b18a05f90aee8c204b47d. 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/NLF711600668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b1a6f54de8669d683c90c923235bcfb57972f5472b4583edc93a6d32b4a094. 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/NLS241502060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2585b38d6e97151efe0c0dda1120e55f2babe7d750bfbe42baf2ce0da8792c12. 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/NLS241500326.
Revealed Recordings presents Revealed Festival EP Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de7026f969ac89085f9a8dccbbd8b37b6ebf039a67d782b1dbcd0acbb110267. 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/NLS241204437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0782821d72bed855e1ed17423df786df5fe6b85c49f0b0089365dce8b9a1b265. 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/NLS241204285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497257797820c3cc48d571fda4d5978d91b7485216047d2c7f5e804ee7e95399. 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/NLS241401375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d169071fb78232aaafce6ea22e49c7f20ac5d7e7ab8de5152fb2fa00d5418c. 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/NLS241201871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64da35e9abb5e3c01711c3e198c07bb1bec403c573febdfcf4f44a63ffc3fb2c. 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/NLQ8D2400297.
Siren (Armin van Buuren / Kill The Buzz Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1eca133b6692edc7724bb2abd6a52d4ea481f68de472c97446e99d3d7fe61fb. 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/NLF711312339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448d77a970b79c91d7072fe6c32c8154d255ffd8d5432287d394356dc5c7012c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLF711312340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049b084521a0da1acacee297f637076a3933de1c0999dceff34affcdb438a80b. 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/NLF711312337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dae9efaf5043f12242af600ca92d70cea01df2a765f9bed869c8aaefe0759bc. 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/NLF711312338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b14e3d0ac3f63c158c432997ae315aa21cfda43f0fb11c8369a8c6ca41d4a55. 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/NLS241204293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f1910ccbfc5a6bfcc527f606e0c662a63f8ad1299b5e6e4a7eedaf617c8f1c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLS241204304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc57882cfff1451d2ca64289ee3c39065add6671ae7a2aafbd9e6ea921297b1b. 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/NLS241202717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045107eb62ee24e71a017f98dca1c3436a1d654e59880f6883c061865516bdaa. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLS241204303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2797684efb601fed0a7559f858b672677e9bb55fa2707625c628445430e4f14a. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/NLS241203498.