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 0x62a44ef482c043f359b6c33f632eb7a8eb306c6bc6b83d636e921bad8301cb77. 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/195763df-044f-4c0a-aa75-e120f1e4f7ed.json and https://artists.proofprofile.net/proofs/artist/195763df-044f-4c0a-aa75-e120f1e4f7ed.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 0x14a6d9e881a0c6ce027b6503ba4911e9e29a2468c12b5223f629f9fda6426094. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US86A1700081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad6538752cb3e78305a33ed4994f00e21d74efcd06f34a9340e2cb71413f03f. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/US86A1700083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac03dc52aeaf9bfb2904973484075953071f25c156b12ef25d9e7b90d5cb745. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US86A1700084.
I Wanna Dance With Somebody (Who Loves Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfefb263f3500f6c2234ba915988052a428084fdb8d6855220d9fb9e447d928. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US86A1700085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7350735dfa081033404bcd95f2336156182660ec9d57900859001ff2df9ade09. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/US86A1700087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01fc954f855233e5c1b4aa9d86dff238768191d49cc8e9caf76a7be415f19e3. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/US86A1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b51eb8190a2503389c3eeb3481bc71a0ffb027d56dd7765645b10f9cd8b155. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/US86A1800009.
Oh Christmas Tree (I Only Want One Present)
Chillout Classical: Electronic Chillout Renditions Of Traditional Classical Compositions
Acoustic Chill: Tribute to Michael Jackson (Laid Back, Acoustic Renditions Of The Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0be55276ee6ad1a403b30350eb48444dda5ce5ce1c295206e3201fcb48c4b33. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QMQME1800115.
Acoustic Chill: Tribute to Michael Jackson
Acoustic Chill: Tribute to Elton John (Laid Back, Acoustic Renditions Of The Hits)
Chillout Piano: Electronic Chillout Piano Compositions
Acoustic Meditations: Relaxing Acoustic Melodies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b183511a73689cb0dce027d73d63deef5c32f410f0b9c1332b0a0aa422fbf8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US86A2100310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad067872375beae0f0e8398001bae6e7c73dfd2b4f136d5030b3dced2327cfbf. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US86A2100311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861ba5931c7ca99c2d601c7acfef9e67026855304f7ce12ead23171c140c4025. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/US86A2100312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19c38572f1ef527d9bed2f0aeb6d0f584926266c829296848faf2c159a42b58. 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/US86A2100313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7432b56f7a675df46d41742cc1e5f59f6daca89dd57d05741eaebc2d8bd60f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US86A2100314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc087f668f5aa9570d9a93572b19c97271cc58ea5b6114ed42b3b47c856ac41. 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/US86A2100315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed1fadbe0925417cfd11c79b1f923e7432b94f611734f08b1508328b9519399. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/US86A2100316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fe164658f98e670761ee1718b0e84e2132096de43923e62265fadcbfba49e3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US86A2100317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8c9089198b32b020855138ada0ca9b0630df8c95e74e3a5a34e5d10673ff45. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/US86A2100318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bbb9d4009600d1e5dd1368dde62a84166339467b71a22952f339153debd1d1. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/US86A2100319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3d684e92b696c64e29000fac72ad79c3b805bddc712ad6502e1acc89bbc923. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/US86A2100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8101b7f818c55d9d54911b48f0b304485e406d1327336fe5f09bcc95694411. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US86A2100321.
Chillout Britney: Electronic Chillout Renditions Of The Hits Of Britney Spears
Lo-Fi Christmas Beats: Chilled Hip Hop Beats For The Holidays
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0513b045ddd86f9945d2ac5d6512fd98f9b0009ca20e5f50091dbea33a013bde. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QMQME1800124.
Chillout U2 (Electronic Chillout Renditions of the Hits of U2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c32c0ac9d19cf7ab6fa845f203311d62796c9f80b3aba1ef9fa6ff287967ca. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/US86A2400435.
Chillout Coldplay: Electronic Chillout Renditions of the Hits of Coldplay
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e9edef7c6e951cb1805d0c019615dc79a38021fb19dbfb4fae88a065848078. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/US86A2400439.