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 0xbb7a8ae3bb2e4e7c47a2999db2edd756dba50860c293ad6b760bb2b9970f5603. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a199dfd2-94ad-44d9-8b76-2168f2f10d69.json and https://artists.proofprofile.net/proofs/artist/a199dfd2-94ad-44d9-8b76-2168f2f10d69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Study Hard - Piano Music for Great Results
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 0xa1bb624f67028ce061e7ae1dc978fdc9d1f8b38fe46825c2191aaf23fda52f42. 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/SE4P51600108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2657476d955840b5eeededa8f51ed1184c11a88a9bf6e417f4df173ba5a336. 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/SE4P51600104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5b3e2b72523d6176964e34e7426938637de22a31bf746aa895a41afb974c83. 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/SE4P51600105.
Studying Piano Music: Brain Power, Memory, Relaxation, Concentration for Exams
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a3a21b5c35c8b9cd397052d6cb9894388bce55be38f1b4616b6cb0ffd2d595. 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/US7VG1622510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4706fc26096a20b877e86b4ba951ebe22059b8bfad6563dd1789ea2d56a7aac9. 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/US7VG1622512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca4bf3681d369580447d567e64bf1048a1f446155ae2712f0cbc65317da05f5. 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/US7VG1622527.
Study Work,Exam Study & Classical Study Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450c0c4e309c4062bafc9c799bbfdd2aa5ac35b2d6ad3a64d8b14e03930a99d7. 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/SE4P51600610.
Piano Music for Studying, Focus, Memory, Work, Brain Power and Concentration for Exams
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf17a6692233ba9ec813bf9da63a1f608d1031073f0460e3d2f2b0487353147a. 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/US7VG1601764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9eeb20b1ae32c5372314c109d5cc19df5e5ab1ba37074014cccce8db915116. 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/US7VG1602269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614f5069d098a10db56515fceb839cd66a1162c8fcfce927f36580ee5ce41c8d. 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/GBSMU2466154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67fd02fa374ab794870048946a2d8983898a7078f4fa60f24c2ab3f0c07d69d. 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/GBLLT1601643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0813ee4aa88cc700268642b83b7dfcc40ada1a1b461484cb45d67b1dac27e4. 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/GBLLT1601746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d05ec8e01574cf9874f30ab52f5f3db8b5ef13455500646b837f55ec71ecc2b. 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/GBLLT1511937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2ec349bb9cf3f4d52d9968464571a0ef8bf3b8223a2e5c95f3eec8dda470b3. 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/GBSMU2479437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912a1d719ea2baef41eb0a20e494c2aa189a0e3f76e3ee260bfa7b88f4bf0671. 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/GBSMU2590072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32c73e4cb8107f6f1c8841ddfebd89ab4ad30c2142168da259131067a520207. 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/RUA491601951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccb86a168f80b59b9a61221833334c57496ff8cd77c6cee974b5290beab0335. 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/GBLLT1601440.
Peaceful Piano for Studying, Focus, Relaxation, Meditation, Baby, Yoga and Positive Thinking
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d087c21344dd08d11354239d9daff84ae6706907891cc78b312194dabfafdb3. 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/GBSMU2590097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a3a21b5c35c8b9cd397052d6cb9894388bce55be38f1b4616b6cb0ffd2d595. 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/US7VG1622510.
Easy Listening Piano Music for Studying, Reading, Concentration, Focus, Memory and Brain Power
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2750a9a575f925992fa011cd77b4432e5cd47e8463ae6295a7897f9bd612ee70. 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/US7VG1609918.
Solo Piano Music for Studying, Working, Concentrating and Focusing