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 0x4197bfae6891dfbc67c895d77bd7090f78401f552dcd3e6a4943686008191748. 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/fb57d796-f2fb-4890-9f67-4b6e2a338df7.json and https://artists.proofprofile.net/proofs/artist/fb57d796-f2fb-4890-9f67-4b6e2a338df7.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 0x901f12331b8a3e791c1d30306ee4228a790b69743bf1bcad4cebd7d00f451923. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ATI211103702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d852358e1813c827d4f9896ec7761adc8b58b9ff0c7a5dc98e0449b64983e6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ATI211103710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ea90ab26ae97d5ed0d91a5dfea33228c8ada1c0420d17b05bbb140cecb4c8a. 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/ATI211407001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf702f6e328af29fafa1aeb120c1a3ce67e8c36b5b439b6e5f49a5025e0f65a5d. 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/ATI211407701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe11a5a47140491f3694b01bfc66ea04f712916a4af149fa68263c97c7cf2b56. 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/ATI211407702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725013f5c5475546074ce2640e4b01d78a354c08f2b6dee766d9b4ae4d3eed1d. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ATI211407703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750a565f25e32bce6d1eb48d9d4f2bc69f0e227647eef8a5c52947c7e68a8e95. 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/ATI211407704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03868bc86ad6b4fd36dffcc0a709c92f71deab692cf28600157336eefec06505. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/ATI211407706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3d0d40687884ce985f258e9bca2044e53f4faecc986984f79382d087aa977c. 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/ATI211407707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9fe5431c032afbd64954a64ea6c0d77a102923c5ea77a1308a4ea2ba7ca29d. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ATI211407708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401093736e72bb2ed12c7fb55ead92c59334651f87e91637b0ebb743afafb78f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ATI211407710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73eba8707811ce439b30c6f0f2a9bd7bff0b1f9f5a49d238807ecc9975c7671. 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/ATI211407711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3dab98898e0d9cbd1219fc4612d4d5b583707145e7ea1613621c7dded7aeb38. 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/ATI211407712.
New Era (feat. Johnny Strange, Culcha Candela, Criminal, Paco Mendoza, Raggabund, Caramelo, Conscious Fiyah, Lobstarr, Les Babacools, Vybez Ferdl, Inhumane, Headcornerstone) [More Than Reggae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a80d5cdb38ece22f918e84322debe73a99961c072a7606624ccf00ca039615. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEBL60467738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910290e8df74fbbb972b5bea271cb7f91bf4dd6bbfe2a60ca904a38dda15989b. 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/DEH900500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf725a8a7584f343a30c571bfc1c6d59183725b73c996efa0d8bd2d8d409a98bf. 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/ATI211306413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff22e5f7d4da8593bfcd1c6439dbc562b51b1e5c682e1c214c83bef2fa5ffab. 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/ATI211003113.