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 0x822f7df447d31ab084004a3ff5867b946f7cab022d1db8b79e956249108c1bb4. 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/c5f1c66f-4745-4428-9a86-a203a8e77897.json and https://artists.proofprofile.net/proofs/artist/c5f1c66f-4745-4428-9a86-a203a8e77897.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pronounced Swing Grow'ers (Special Italian Edition)
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 0x887ffa70d761e614f40efdc625edb2c5b119920356894247fe2698bdb19054aa. 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/GBJCN1204302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c0ca898eba4305346b70541794e9bc3f325d0fb155c931833c13e369072a26. 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/GBJCN1204303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e99947de98ee4e881ddfd12a490023774bfdaa2d3f191af583c5ca9134daf6. 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/GBJCN1204304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da408c903204e3ea695c7fffbf407515ecd7758be38cd05052875e851dd48c6. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/GBJCN1204305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ba164cb1a11b3e5ebd2b51518833c1f7baba9ed7d677ae8edb2ceb7fd37c6a. 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/GBJCN1204306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29aa6c6bd504db5adf5aece6050a803ac6ba0c00d28e723adab0a346312825a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBJCN1204309.
Pump Up the Jam (feat. The Lost Fingers) [Do Not Cover, Pt. 3]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3f75d5f9ab3f8f8c1393a960712478db22ad9522501e13b607b6e8099c9d2b. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/GBJCN1405104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f0385d0f9445b11b6dda8a84d47fe305a1a3867f0e3d0628ac6182f54336dd. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/GBJCN1405105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b304fe2e47675643ac1ed5e76caa5d67acf0cf57157211dfe88ca63de6b117. 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/GBJCN1407002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaac5b6927ae822fbe97ff2e5190b96c60b716cc5fb0b0ee5b620f308ddd2581. 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/GBJCN1407005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5fb0e4814eb5fda21d88219559990e7711dd17afcc29ee78c3b7e87647cc58. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBJCN1406906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafa2ce580a25a76ee1ae3c4a7c17ff02359063bb146f9a38f7a327340313ffc. 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/GBJCN1407008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd820e50bc9e10a014a552ff33a81e513bafb96af507a2a5e1466a2e610854fb9. 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/GBJCN1407011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8275b2eba5b6cc4ceaea9a27de18bf128f9849877586bf6929a8fd0676a1c151. 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/GBJCN1305401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e9e5106686891f37e0dcd10444dfbc6331950b52313ca4313694ccdaff2ac9. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBJCN1405102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbe3461fe5dd2c3c457244fb68011000ba39a2d9243ad606b5bb81ec5d78799. 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/GBJCN1811601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8f04f5513897ca0740d3fd06a7be022ffc975a299d93d0a91408850de64b5d. 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/GBJCN1811608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7d2c656934991c69d066de3976bb43b5894cfa8304e9f0467bcb21ecc79d6d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBJCN1811610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbe3461fe5dd2c3c457244fb68011000ba39a2d9243ad606b5bb81ec5d78799. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBJCN1811601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5f9981ea6e3821a2dcbc4cf261353b513c12361b2bc82283e2c054091bd453. 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/GBJCN2019201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b2b2ca6b61f4e565d1455ae783a78ae88de1bd7633e572f46ac19c62f89ad8. 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/GBJCN2020301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5f9981ea6e3821a2dcbc4cf261353b513c12361b2bc82283e2c054091bd453. 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/GBJCN2019201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58043a0e5ff51ca0257f141b522fd9afc42d0303877fd5016646967c738342f9. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:08:57Z), 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/GBJCN2020502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b2b2ca6b61f4e565d1455ae783a78ae88de1bd7633e572f46ac19c62f89ad8. 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/GBJCN2020301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f9c85f4432178849f302e95608fc6ebd91ab9d98c8fa66dbff27b8d6eeff89. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBJCN2021201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78df5603804e805cc0d79d2a34d3e82a4b110696910192a7ec6c001f547d21e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBJCN2020501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2c1d64d0d9e50c322a1045b3dbf4ae13bb3f13b8bcecdf64410c3da0355097. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GBJCN2020503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77215410f8c17ec57fad5034bf079c3470462894da744aefcb7e65d1a68431a4. 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/GBJCN2020505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc2d6bb53d82710145e68f7ac67b808ad1cb2f965072846a6a2f8dbf88af839. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/GBJCN2020506.