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 0x3c5aeb75b2612d6b2409582a31aa103185f1504e0f4b0d39f6aa97dbbb4bd611. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/271409db-2074-44e2-861c-8217ba1ea925.json and https://artists.proofprofile.net/proofs/artist/271409db-2074-44e2-861c-8217ba1ea925.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 0x666440b7242974548c2fe46fd32704c8e8426954e9869825a7b08396957c8fcd. 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/USTCD1086455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cee785667d2eb991369ccc790c4bfb65fa099ed23248a5d7f3be351bbe0a63. 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/USTCD1086425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426d878be93eecda43753932f26f9aa487bcd1997169293bef0b80328a9a15ae. 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/USTCD1086549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f0e36653c8ed3437d20ed07607eaa8ec65ae2c3c75ba8104b8e47191db441e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USTCD1086429.
Music for Finding Strength and Gainging Health
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd2b04675bbcba1c298a3f6a4dbe60ff5eda91d3c699c2aca39b88b6d076ed7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USTCD1086427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb6fa9fccb241ac4754ac168a1622657c47acc2d4bb4b637e019d5d89f9999f. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USTCD1086444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39778b5af9a01cfceef7bc26f6aa7d685b0dcd72e45d1a1bde6f67bfd35e8f20. 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/USTCD1086456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a297e8eaaac542196ba2db0b23f1f2f109b9df212ff2dab397fb155083c621. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USTCD1086440.
Inner Flame (soothing Music for Strength Training)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda7c93c49354bd114fd814cfe26c66f4f3aaa5bacb474bf489c994880260e2f. 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/USTCD1086426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7df614eaef6cb1f5e68e40bb0e55480613494d805db4fec589d60fe1b54d37. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USTCD1086430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620e2d320dc050a1ed98dfe745d0eb4d53da670b18fa65d0bb7a983338039976. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USTCD1086453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84d41def75e60b0780c45815f8d0d07f5f7205e7004c11cd3bed5a4df94868b. 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/USTCD1086431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d7c5303c360fb49b55be7d5cd9c1b30f3a9a45c784eb690ebd99da4ba1eba6. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USTCD1086428.
Find Your Shape (Relaxing Music for Yoga, Pilates and Tai Chi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3d8b6a23293d0c2b34d7cde3aed252f05fd89b1700ee3ccbba09f4b63feb58. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USTCD1086450.
Pushing the Limits for Fitness and Health
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2842d31341f013aee24539071c54a0a9282a60a3f0be81a9c6253b88cf1944dc. 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/USTCD1086434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5059ab865334baa5b394ea91f5ec7630610e5ef01e66d75723e14b5e820a8e. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USTCD1086436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ea58b8e37b1fde4b936da74504c8680ab82f0cf1d4b97c9e95515eb99b5ff9. 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/USTCD1086437.
Training for a Better Life, Mind, Body and Spirit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b6c328bca1336b6a363a51b0845436a2f2da9a672771ce5198fd6b79af87df. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USTCD1086438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1d06b153f840d4d73c44d21e6580bf752780725d50f8f4a75ff9e01d7cf134. 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/USTCD1086432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c58d38291c8b205ba09ff50981345fecc17340b7c90e55790d25f764a7b867. 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/USTCD1086441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5be0be584e1073b9301ee225e34152b0dcfbb349736c162a9b7dbcafe1ca843. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/USTCD1086439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0d171c740fb8398c0bdd645bbf0fb1c2097abc80a0bfb88d98b724a7a5e866. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USTCD1086442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17891336610b3b5aa90bac9fbb0e0e9d90af34e23a0560309ae0475f3960930a. 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/USTCD1086443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2812fe281aaad79d1e2014d7f640a57b53cd8dce7b6091c623385f27684d098. 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/USTCD1086445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdcdfcf9121ce84de1180013f3790ec2886a0ff451aece1b9f1abe332ed2376. 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/USTCD1086446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b4e045e917b73a9236cbe6e1791cf84f1f0e0c2667fd2f1fdc7f165b83b9a6. 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/USTCD1086447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69da4d6ee931edf02c7d3f3f0c3ed0dc543f95d33acdacafc49ed1f22a71fe62. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USTCD1086449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35525eb8ef35fa6d4431645a11e62dec781efb71d7005b03f3b13009aed44ff. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USTCD1086451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e83d57a7ffee43f88fdfc2ab429893c401417c04f4dd662434ae21860b953b. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USTCD1086452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a98d24e4ef675863fec96c8ea1c46f7817f695ef4ea12337d2053465c79d61e. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USTCD1086454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa1bcb01905a2543f831e9995a302472bb86402f040e977a9c34937a4c34327. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USTCD1086435.
Gentle Waves: Chakra Meditation Music for Pilates, Yoga and Tai Chi Training
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2277e8fb84253426b0f3a5681ea24ca01398a64d004c3071be4299a8302c397. 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/USTCD1086548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1980592ad8449fb51c7dcdecc30d5277a069f717469184a97da1960487aba73e. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/USTCD1086550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc7b44f493e61cbe9edaecb9023ce84d649f3dc74b0c7ab5c3fce6b3c1775af. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USTCD1086433.