200px|thumb|Making tacacho Tacacho is a traditional Peruvian meal that is typically served for breakfast. It is popular in the Amazonas region, where the natives boil or grill plantains, peel them, t
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 0xf736c0b123bba20bd8962f92ae46c30c7afb5568596ef8b32475b315945e77fd. Chain 2 (Bitcoin): anchored in block 953627 (2026-06-14T11:43:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2fd2f913-0fc6-4d04-af9c-d5632afb464d.json and https://artists.proofprofile.net/proofs/artist/2fd2f913-0fc6-4d04-af9c-d5632afb464d.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 0xd9da69fbdc26bf5ddf8dc77c1c3c5ca276faaf9599d997901c38950395873eb3. 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/TCACR1638693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fec6a0722ae667b1b7e426525f2089494a0e8fe692eebdb69f5eb0ec2c4286. 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/TCACR1638716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e50e4de937480d3705dff6d0ad9d0f4b9af696c9fe8ad7b1373a1668b75cf4f. 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/TCACP1670633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342be5e62d7928be26b6caa1d4fc5861a043701685d23b866f036f5c58f81b2e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCACL1624715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbba62ede768d4c92892ca9d171adf76f024a85337e04c8bcd301c640a2fee1b. 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/TCACL1624697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065b616b158bc777361c02f744af9a9fa79b3635c25e6da73c768537f6e02c0d. 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/TCACL1624707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09052e9dbdddb78ce04f013b3296e63d912bb284c994b6cd4d11d1f037a097af. 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/TCACL1624711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9b319d35e4919d0e889c2e26663ca89434868e4b347340203cb347248bf394. 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/TCACI1569143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e02473763134789f1abe2d39e163c41fb8f14508ae55041675282fd855a079. 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/TCACI1569145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cb791cb3a97a9bcf15bb1e8c7da37da3f670672ca40995855f4119dfa2af84. 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/TCACI1569146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffdb976f9f3f95c32279c2fa9215822c0495f5489cbe4e2246e43e24cf9b5fc. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:58:32Z), 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/TCACI1569177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c59c70832e616c23fe653279591e66def2c55b854217211b1785c2ea91f963. 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/TCACI1569185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c003a7753dee82b9505828033c2534a7133e2ccf573339efa933d313f55a43. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCACI1569186.
Hardwell On Air - Best Of September 2015
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f40b8779d0bfb93e00b5d021c167702ebdd964fc5c44f2063397e6fdbd1483. 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/NLS241502309.
Revealed Recordings presents ADE Sampler 2015
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f3aa603e04ace2fdac812d64794f6f5fb45b4258cb6b2f296be254425179ff. 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/NLS241502227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd8f8cf8b64d603da4cc38b17d272988f66b075675d4a65ee9808fc73cfa5c4. 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/NLF711703126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef686093b5c89751c020b85ef3045311993b1392ce5ef3f0a4855ed8dfafca54. 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/TCACH1539293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130637cda77a07efff70a29739d09a594c4fd344335f9757ba01ee5d5cdf5e7a. 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/TCACH1539296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7537b1bda73d920610e85d7397cd90ed4c9292739797fae00ce86ea23ec8f5. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:57:28Z), 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/TCACH1539297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f230e8d376d0c47a6e639f1ac9a6af1c22c0b6b03fa9dc2c00ffbea875da6b5. 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/TCACH1539299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000c03190d41bc232105840bcd3215ce1bb0c2b5a99edfbd82caeb4c67739ee1. 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/TCACH1539300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84bf7ec05a9ba551b6e37a8512b10252cb3fd8a5a967834ee9a86fa17c9f895. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCACH1539309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d6ffd925d42568b2dbfd8af700a87d30c44fb392948081a04f6aec9ec7cf87. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/TCACH1539320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf2106147417f9323e9ef263ee755c0a0dc1beda54679fa627fd50f848a29e8. 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/TCACH1539322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d4614a160df0a38bf879f7c0fe44ea353b2543b39c8607674a358c8185cb9c. 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/TCACH1539333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb847f25805327833862576818acbe84835b458e34d6bb33785a5b47ae60c9da1. 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/TCACH1539353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7ee8372d72ae3f162a863187e8b5375ebbba123aaba4f61a049b1d6aad6b9a. 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/TCACH1539360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd23a9d09796f26eb351a72e46f8b0a306e72dd2119a5c03a4b0b5f61b6d8c6. 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/TCACM1667535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8f3e3817260603fc6387bcdd7a2171c77dc6a9bb4bc82cdc2120309777ed36. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCACM1667543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcf327719e6da779b5cc3c78e29cb0dbb645aa1bb1db07cf9bb0b1b5bf15695. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:08:24Z), 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/TCACM1667546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355b839ff6091cbfbe5b760a02960c5792ac967e54e601f83199146cea449d1c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TCACM1667548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346db8ee580cb727a3666ca9d859f29197775515c082d4b52df8fc054358c9a2. 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/TCACM1667573.
Clubstream Ade Sampler 2014 - 20 Hits of Vocal House, EDM, Electro, Drum & Bass, Nu-Disco, Trap and Glitch-Hop
Dansant @ Amsterdam Dance Event - 2017 ADE Sampler