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 0xa266e0c8aa5cccdccc0fb7b4863296f6b90dbfea66506907af6a4ee30876d990. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bccea717-065f-4875-a443-2799e5e6887d.json and https://artists.proofprofile.net/proofs/artist/bccea717-065f-4875-a443-2799e5e6887d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Last Ceremony - Big Bud Remix / The Chance
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 0x43dbdb874500c07715fc7251f4a0aeec610d09631fd3efe34a6e3db80ee73848. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NLCK41022488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1d6bfd48ab967349695586738910763224566baf3b5c441e9123eee9506c47. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/NLCK41401617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c86d02806d57ed6c7b15bca8c1723d027cec33361e0330f51d3c4e0ed7056db. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:34:27Z), 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/NLCK41034993.
That Moment/ Vienna Melange (Flowrian Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94f12132423ef2e0f9eebd7da99f52e8c52e3b56445d1360ca473e7e987f5d8. 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/NLCK41047312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa240cfd8a1418ef0d10b4773e983235cd3668f1f98a2189f1875984e1aa65388. 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/NLCK41060081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17a72fa1f2132e20e6f13a51ce78329467adcc8041ef113afb0acb2a900f62a. 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/NLCK41060082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbe5563dfc121e0c1245a3bd7235a1cc306f5a0267ef7b8711d0286baffbfec. 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/NLCK41060084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7d64a5a06673aeddee53f33a8a6f443b3f2c635e2d8efedaaa3054865bba9c. 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/NLCK41060086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fb323de3fb67b5c2e892d04eea8b4555b7917dab296534fd12bc619ee61341. 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/NLCK41060087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e4b435e012d3ff8cb03cee453255297bfec74d50cc62240b2a5bb774c322bf. 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/NLCK41060091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2074231aa59f068c7aaab5aa7f7e3670841f3cb1bd58677bfb67984dd3e87c12. 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/NLCK41060095.
An Indiscreet Proposal - Flowrian & Simstah Righteous Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3f37207b26d500b84528b0e6c54cf9edc5c0f2759c59625fd94c713061af5a. 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/NLCK41060098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c68ba7c4861e0247ca5395e732bec7372c387a479e35a26b08e64f434280b9. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/NLCK41060080.
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 0xe178d1369c9bee1277ada747112f604f808a2775b502c64ee83dd5a8ea465f8e. 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/NLCK41060085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0c2ec07c3b83ffab4e0710c43ce5b25ca4be0912c8576306b460162c18f9fe. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLCK41060088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857ecd62f225cf5b1bfee17ee3122f65ec6ea6ef7644247cf22a0240f2f256c5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLCK41060092.
You'll Never Know - Rowpieces No Pressure Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc06d3deefe32c1aaab3b78d226b853035aa1a16257cd8ac5b48406cd35e8a99. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/NLCK41060094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5d77f089a5a42c47fc1da4c34398608d448b22233e72883b7b1ab48b0ef8b3. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/NLCK41060096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450d814d81a1892a2c199e4daa428f508c81297992b2d5093970468adc122a77. 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/NLCK41060097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1d8347e9cdfa4a7f3b248f80632e322c92a45ef161296752d0b5f9cd9f915b. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/NLCK41060106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ff481712cbc2a1dfc662f41e1ebb635c9d957ab5642b4e7762008c20a48e2f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLCK41060110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9d562d63088274e813c86d2d7d187188e209f27e7e4036058ed36e17366cec. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GBKQU2074700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81e3823da246e1549755d10a0cfb43149d10000bb6c047a2adf837d33f82df3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLCK41072801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b06e50ed6b53392b7e2ef1658125320c8dae71fa73dfc60f3606da518e0190c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLCK41072802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f56fbfb8f89de4fb1335ba74d486b9b3b383a211a3e1a7fe880c161766088f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:03:38Z), 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/NLRD52502974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30c1357ead702e48542e51c153d75643e36d48f1695694af80a744d4a2e6594. 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/GBCEQ2000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae679dd128e8a40d25229880b63d128cfdcf9cc5b11bb4aa1a0030b34ef56b74. 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/GBCEQ1300082.
Liquid Drum & Bass 4 Autism presents: Redefining The Spectrum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa695211300e996123aebaab5a9cc02ca95a2690237c1e6aa704c7e540ed2f75. 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/GBKQU2050894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7b4fde28ffacbdd308a3a05a638e346d10033488e616c49db79bbea748f9e6. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GB5KW1800410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fed309ae487ce7656b7a9935a68ccee3e299e5c9d74d519e9d198fe86a2fad. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/GBCEQ1900061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd173839a1e9680413a8856e0cb03a092c7763ea7f1ad33658273efe491eec4f0. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLCK41060107.