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 0x252bcf06ef89d5fd46d45e6c4f63b07bbd83e58fd09934ed10ec005cc5b4aa69. 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/d6850bb6-537f-4600-aaf4-ee640d459d00.json and https://artists.proofprofile.net/proofs/artist/d6850bb6-537f-4600-aaf4-ee640d459d00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Soul Sucker (ft.David Rider of Immoralist)
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 0x662398b6040166ee2d3d69992daef8e5a2faa4acfdb9a21df1dfe6912c22fb2c. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/UST8K1647354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bc9733d899dcfca47adcf1995bc11d8da06c4af809b6d9312c19404d164835. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/UST8K1647355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0ce70b37fb32fb936b0a2cb109b342e1b20208fbfb90b06f6069a82d7f679c. 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/UST8K1647356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb998a600db51670c97976c4036c0c52af8ee745d974f0f4a6a3b76c3e4c885c4. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/UST8K1647357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9a3784a7532df7fb0dab9b50334f497404240497c779a6cdda155e8cad93f6. 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/UST8K1647358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e7ecd62231de998b271f774d8c01a250f31fc20c70f7be91fcc5cfe850c678. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/UST8K1647359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0d3a3773c67806c3ea4881dd4799d041f294aa3a25ebb87e88e9e761fcef78. 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/TCADW1891770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2a197c011e36658bb4f68e98e5e73eed226439a93283a452939437c9853087. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCADW1891771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb594e7f44783bd1ac72362d7acc54a5feff240852a92079e1e3085939a87cc92. 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/TCADW1891773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905ef05a928f098e7f75b0025a23800d5576668f28e36637e1e7439a0d0b056f. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/TCADG1759028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b0d626a00ec4fbefd085394d89b61dc627d575ea5e13e19ceeda4d4be4e520. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCADG1759030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc753afd14801ca4f225a2f58ca3dc9e6e6baeec8e6e260c12676da0f56c9c949. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/TCADG1759031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02295e42c3cefdf36af7d88fabe7c1c30431e888cb66b0a894642056a3e9c9cb. 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/TCADG1759032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a5264958370a966180be259e8525743484c6a6c4fb6c54e88a9fec1b15cfa5. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/TCADG1759033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ad74a1f20d5a98c6158da1778a274b8bf03e0c0291aa8b1d24fd0e72c8e84b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TCADG1759036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e097735853492e65a97716d40b7951796c0038ee9f518eee6e92abc942006b6. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCADG1759037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ec4610ee724cb4459b830059291ed96db89a4da03932de2bb3487c3ee17c01. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T07:36:28Z), 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/USA2P1954187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc594c411dda7a2211cb9a79abc252d3d84449430743b2e06389ee97d5e623671. 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/USA2P1954186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae438e1b707274a69819b429abc8773c2d31c4bc2e799e10e68cdc57450bb0dd. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USA2P1954188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca257096f68515cd71eac29bf97929708e8470a6ad65e99e2f5c27c0298c7b3. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USA2P1954185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7075fa7a1d41f06bfb6f99b5993731ca62f7f645a2a7ee0f4ef9cf250acee95e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USA2P1954184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb431d68d4afff001d49c3de815e190bc540ea8f931946ee69d7e66007c3db3c1. 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/USKO12000477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba1c203a34d18783f2c9b7bc6d80c6f0abe6afb3b34809ae0866f3b1203b37c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USKO12100371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8cc53eb0e0a3155b5df369c4460d320f14eded00e55f4534671b71eaa5d5bd. 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/USKO12100374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a801d196713cfb9ba09452066b978a90848fd4323b22e64abea8ff308bd7d9. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USKO12100377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90dabff5f9ffc7e69052f396563a6c990b6a7cd9e496ac8399d6043205cb3222. 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/USKO12100378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0587f9442c8759437851a75f497088eace56989f2ae8fdde568526f675392cda. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/USKO12100381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c5ed33d82eea2e93b7a0b49a317d2dd5731fac4011c20d23d5a32978813b45. 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/USKO12100383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5719398fea1f0bf41d6d2ed8841b9ce06b7a1f9897691215af82eb50b9c76f18. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/US5ED2304839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa3d1c71d484bc6ea691b6830d5260e1f934a67e10c4473b2954695e1360b63. 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/US5ED2304836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5719398fea1f0bf41d6d2ed8841b9ce06b7a1f9897691215af82eb50b9c76f18. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/US5ED2304839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18311e5b17b0a68bce194222bc04d8185643e84799cb8887231b4e4432e16d5f. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/US5ED2304837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ab333c43dce3ccdf5836de04efd14c887f3739bde6f3c40f6c688b94088562. 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/DGA062370210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e636b2f25c995b7f4f2ee6d652e2d3f43cf22117c4ada1697a4e69ada45ec6. 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/QZNWQ2228076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a310527ba58bc35dcaab6e2be04c58b75c5da24b2532d0624612951b6c5ba14. 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/USA2U2300032.