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 0x6d4de98fe57920a9fa8c2ae312b5b3fd9044546ea7b56a3f5f76b48d4a954dda. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/074c0129-d864-4a6e-93eb-80ce0e37c1ad.json and https://artists.proofprofile.net/proofs/artist/074c0129-d864-4a6e-93eb-80ce0e37c1ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Essential Swing: The Best From The Age Of Swing
BBC Band- Age Of Silver Screen Vol. 3 - Hollywood Musicals
BBC Band- Age Of Silver Screen Vol. 1 - The Adventure
BBC Band- Age Of Silver Screen Vol. 2 - Love Story
BBC Band- Age Of Silver Screen Vol. 4 - The Epics
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 0xb58dc213e4ed6c47ab9eb0f3c0aadc6e508aac82769d6297c1811903cafcd654. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/USA560846866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d2672d78e36bd076b11d8bf139c8bcd74190e92cd165bb56675c3dceef2d28. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USAFM0700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9c78053c4410d14d7c8ad891a335278a78e83bfb8ec1f6d94f380e4494de89. 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/USAFM0760110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9858cdea484293caaad2d0588df888a6f59eaf0263cc044f6af958df4fd69ef0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USAFM0700118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7c460c58fe0cc370b6d1923d98ad6ca6d6c5d410f7977515e5e8bfdcfe1bd4. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:30:36Z), 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/USAFM0760094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3e20d56bda6ab54af87e02b56139352d4f45cc01b2a19582e2ce2d5178646a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USRVF1404057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f6c5ada04efc55990ac02175e983d8e3fb73967953b9d381636843d465784c. 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/USAFM0700096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cadd6d9350cfb3d1032811c7f84135f3bcb82771f9f8513db85d2916541a94c. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:54:12Z), 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/USAFM0760108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c049653b84b64d6757c09a799bd1203c21a912d52e7bc20659796395feb78e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USAFM0700115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d117b3a3120603d7ded46f486a6911a52dcea7172078af90a40e16e6253205. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:55:43Z), 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/USAFM0760104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab78d0053bd1d214e9ec96a995e269781cdfc964f1a11047ccedebe1e768588. 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/USAFM0760106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb795f23e0d6c1e66aaed49d26c5c3373ceb0bd9b7d6f6bb6acbd05557b1c8985. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USAFM0760088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814b981e9cde8c55b5d873c9c012d9371f0d04238380ce838f3dc8188d395e11. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:00:27Z), 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/USAFM0760087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2d1b0c82f720dd1c7839e47fc37bc1d4cd563ea724bb9ae7d941cf806f3c87. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/USAFM1000195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb16ad19fc569c0e01a7e51832465de0f3098a02326dca9a6a98f6f1c3a28143. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/USA370934552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35e9b11df887dc3a624d9ae9cb319f9be63c9eabf6a6e779a1ae50c8139371a. 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/USAFM0760101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d117b3a3120603d7ded46f486a6911a52dcea7172078af90a40e16e6253205. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:24:10Z), 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/USAFM0760104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5a88a8ce02eb09bc364d2290c5d7a314e40b0720c629ba7ff14839f5633af9. 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/USRVF1404047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2168e6a7e0f6b43b5040a08ac1e86dd89c2b5929ff3bda2c4096849465314a. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:29:36Z), 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/USAFM0700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221415aeb425cb5648d4f139669d6a32a21c0df12958361930c312b3ceb02d30. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USRVF1404043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbee552cef84833446e97e742eff542e24a419145e5664ff8375ad702dc37501. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USRVF1404045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c975067c3d55efebceb2cdd1c7e13f679d8907b11a37d0b9d613207f1161d8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:34:20Z), 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/USAFM0700116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b37647203f36e0466bdc86ae017ea2e52fe7799e052598393424b9ca310ad9. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USRVF1404038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf162338803d344c9307d46ef1fdef04416366d3295b9570f72ea5fa9b98c8fb5. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USAFM0760107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418c23eb7050fb64130e110c3bee5fda38ab7f01cbb2e4587f861beca4d8d631. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:48:42Z), 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/USAFM0760113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d312a70cb6edb39bccd554c82c2e8491db5291056bcb58e23899221517e6cc0. 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/USRVF1404051.