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 0x68bcb6215c1e2926cac3c28363e9de37532c187a1908067a8b31dcdf30e54d71. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a800ef06-4551-43ae-8ce9-df6cc121f575.json and https://artists.proofprofile.net/proofs/artist/a800ef06-4551-43ae-8ce9-df6cc121f575.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa018aee7c2a275504c00656a44f729f435615e60403919549cd63cffff6e8394. 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/ITS781701933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd505c3a9620c5551befe391c185695464e49dce38999a9b9f44b12d9c4ab881. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/ITS781701934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab594420661f65e5b61182913778359983cf0c751ea075aa9b44441713bf9ffa. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:01:44Z), 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/ITS781701935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1c7ea5b065abfe0e32bbf4cebc2bdcbd17242e42dd3c7f93f767be19d9401a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:07:09Z), 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/ITS781701938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45780f00ed3e443c30a833c0393c0c75da4cf017d0bf784d9fe25ebfe89344d0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITS781701940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f4f2bf4a2680ef5971b999c27fd87f5e4dc10b10e77abacc78c9ffa0ac85a3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ITS781701942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0392842ae6aceda2fb99ce9cc96c4dd384a27660e51cb1578963f0a467c5b417. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITS781701943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68403cc2025a2527e4de737badab6933a431e6b42556881b656564b46cc5cd6. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ITS781800592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e74726c17cdac9f3e8829607f3136f5c465aeb510932649bf58dd00cc72ec8. 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/ITS781800593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e20931cf8b6df298474285fd8ff14625155338df4497d757591f322360a11b4. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:41:09Z), 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/ITS781800679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf74b717c108ab3efcac2480f217401fbfa8182352112c80c3010ca877f98e6c. 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/ITS781900969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061216150433016c603d7628a46138a009ca2492287839e13cf26ec3a2406ea9. 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/ITS782300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0daddbb95b431f32368f03760e278e5f9b9b028484af898eff6a4e5dcaa98bea. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:24:59Z), 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/ITS782300822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1e0cbe993e2ff2eaddd93f97be34ae37f2fb11c0afe572f49fce83e2d534a2. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/ITS782300824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612c5294ca8edfaa5d4013370e186c2c478ba4a8e83e115ea76f4fb14368320b. 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/ITS782400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2e686161633c625882b77427dced8de726adf1985fa9f9da1808f16f1b1ddd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITS782400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda1db7e1dd9fafc73e74724c8f536e75ef30a0e2671d3d841d8038408fb827b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:43:37Z), 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/ITS782400196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4732d836c8a5f28b14eec27ea7e3502da671f462e035322e539b0e38f8b10735. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ITS782400814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35efdf803fd0c240fafe4b16a5f8ff21165c3e0a80772e0a4108fd334d761d37. Chain 2 (Bitcoin): anchored in block 957556 (2026-07-11T11:14:07Z), 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/ITS782400930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5f33997e487d543762ab0da6f15760f26ef4d0169c9927eb48d15c72aa305d. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:07:32Z), 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/ITS782401032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458f76f642e9ac832ffc40c2914fbceb66326936128e492a0fdbe94bc11a5e3f. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/ITS782401178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c593e38104837f4e276b745e4bb3c5cf1e6e352b54bb0e5112f9eedb23f1a5. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:59:40Z), 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/ITS782401200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81042333938c0ee6cfd4c2f6c0384c7eaaa466ca9fc753502c25f408bd784fde. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ITS782401201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf2bc7651c26e8fabe8f48f267e8591794e4c008102b4461c848a922ce72f71. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/ITS782401361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1655baa9778567957a07f0de90eb1b208f234dd3978ff58df82c659a42eda5d0. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ITS782401374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d26637484799bb29499044d2e82a1a6445144f6170de55d4b6eb40c07dfa0d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ITS782401547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12881318c04068acd473122efe3db5d8c2ebe8b030eae4c4c16819e2558a52a. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:15:05Z), 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/ITS782401944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ceff87d6922bb6cc9697eee1dc9124bee4fd293862f316f54182b93fd635e7. 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/ITS782402037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae911afa2a13a54dbbb6a4a81953e7614426f01e12064a20d5422c78a4693f0. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/ITS782500319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eba3590dbd0e6696baab850259387e25e4d915bc2af79f0a5d36ec2241566f2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ITS782500320.
Alpha Waves : Ambient Music for your Brain Vol.7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf74b717c108ab3efcac2480f217401fbfa8182352112c80c3010ca877f98e6c. 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/ITS781900969.
Alpha Waves for Study (brain power, study music , music for concentration)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1c3267a4b4e77a0dc94f8e98b4470a2b17af0226ffaec265a81ba39b3f599d. 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/ITS781701941.
Alpha Waves : Ambient Music for your Brain Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21995b0d8aae99aa4aea20121574c8d0b82d64414114ba638114a8038240c2c. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T19:05:46Z), 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/ITS781800452.
Brain Dots : Study Music for Brain Power Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e20931cf8b6df298474285fd8ff14625155338df4497d757591f322360a11b4. 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/ITS781800679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f7adbb166c198c3fbdf13a1d35d12da59e996f910607d597333dc9795b0ad9. 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/ITS782401774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0e7d57c497d143dfb19c400b43b20d4b2180a1f5cff92bb64ac9958ff2d1af. 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/ITS781900933.
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