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 0xb5d2b2de0a70c6b82405a78e5a1e354b4a01618776ae84d4aa02a5428a68f3a4. 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/c58ef5d5-bb43-4774-90e0-df0b5dd4783d.json and https://artists.proofprofile.net/proofs/artist/c58ef5d5-bb43-4774-90e0-df0b5dd4783d.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 0x5a1fd53400b1ee763fd9fa40c427005728a684d4c358bcf42610463c8e989947. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZHN71981810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09af82a0a58b6ff6f91e3661bfc98f29dd1904f85f88db61391ef8ce0ce0cc0. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZMEQ2065790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135affde7ddff3157afa9f86b2f3c47901a2bf4197c2829ef204ef0d2cf3cfae. 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/QZFYX2155443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae75a73a2f124e0376de809571f7da515ed4fb95810e95de461066aa2182a474. 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/QZFZ32135864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f949de915871a6279ab19b34b00f32bdf023d9697e835b02ae75e3a80e587fd. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/QZFZ62152425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d81110aee86a9f4012b27487cf46e0151d170d18288fe2031e10a0ac5abca80. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZDA52138688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bf768e5a9edfd08a18ff0287a1c2109a25c908b2e785f35f2d0891ed677618. 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/QZDA72190674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa334b921f2368288ad70c022221b7fc927223d896f6fb25a6394333e3fff68f7. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZES92149059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a521a300f33a46bb09a2341e460c3f7ae8f3e85fe6eeb017dc0d4919ff1929. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZK6Q2170251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277e59be156dabc2d0f37e500fef574e815e86a468a1abe514fb985a21610f29. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZK6M2176547.
I Dont Know What Time I Got Home Last Night
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16ab98016e7989df02c6bc60b0a99eb0e1ee71f7fe5c1d2550d1f3f0a337f93. 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/QZK6F2191351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fd4e2abd243016acd610ff7c8e9958735b6bd251dcbcc844783aa868768e46. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZMEP2191255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88c5f7dd9097301222153f0495d0e3d643c0da8a445d13c87f08f436e953eba. 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/QZNWY2175412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a4e3aa154d13601783b77543d7cd0eb0029af9e7aabffa45fbc4c691b65471. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCEN2200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d7a7f1e6d2f4d562e8efcc4b46f8c1c08d4af15749c31d1bae232595bde7c6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA0M2302153.
You Know You Like It (Resing) [Bassline Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e08f4783f4a5c508184437fc64115656f409ef23ed86ce5b8efd3f6136265c3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QT5M32560223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa672b2d8a2287ea5ab96a911190381cf69f6f21d586b264bf016563f35ea9b3c. 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/QT5M42518577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a4e3aa154d13601783b77543d7cd0eb0029af9e7aabffa45fbc4c691b65471. 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/GBCEN2200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a4e3aa154d13601783b77543d7cd0eb0029af9e7aabffa45fbc4c691b65471. 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/GBCEN2200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c12e8a83b0b436fc805a9720d5b392d797dbbde549f7076378f894b913d705. 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/SE5752353905.