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 0x4a913384b6b06b212f24d67751c4949fe27494037311035999e286fd4c39be08. 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/4a63fab5-0ac9-421a-bb89-9876159aa20c.json and https://artists.proofprofile.net/proofs/artist/4a63fab5-0ac9-421a-bb89-9876159aa20c.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 0x4f9204b740fbb33253af6da0509857b59f45a2526b25b8f75c070565d3a07ed5. 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/GBKPL1668261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad2f229c4856ce1f32f5751479f96df8c67396ded2cd2ff3fdaf603c686c34b. 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/GBKPL1668259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bab49cd5bcb1b2b4ef99172856cf4a9cb919ad2da3377cc4146370123fe312. 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/GBKPL1668262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb66bb9e55bfe6f423a52fa1ad3e3e03c330c246eeefa27b20a9ba366d74fbf5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBKPL1668260.
Vacation with Bond in South of France, Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4388767a58bda66d728a5afb6ac16cc4ef7f4d4bb52c702937cdc31cbb4232e. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/GBKPL1945408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4320e8076cb3e67304b51dd0a50749f9221311a7dbfd608e9837077d48be91dd. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBKPL1945411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7b3cbff9c431e16b69945fa67d86d2da441417d550395c4c26f797edc7f99d. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GBKPL1945414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40ee6b68d300998001e2e1b6d47f2c4b1318923b8a4133476bb876d0fd4952a. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/GBKPL1945416.
Give me palm trees and inner peace / Lovesong
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5043a8c4a6d8ad0a3e59fca8a8e2f31ab3ac300ab5518c36a960fc7d84def8e. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/FRIDO2110431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20dc559876d159483ff2ced7e898f1fed1b082de32f1871821c95ff48787c29. 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/FRIDO2113456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dc897611f1e52adb3e3cb34a48faa101f984b93ece5e412599c271a53a73a2. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/FRIDO2113748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfb0a6353834da17870dd56587a431fe90bc1f9560914702347415ccbdbc7bf. 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/FRIDO2210328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a99a5b5551e99fcf2963da377106a43986019246488ba1b2573485dbca8766. 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/FRIDO2210329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d0613ea41aeb5be824bc36b071a15695a00bcabbb882e09817eaad48b375dd. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FRIDO2011690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b22b410946b7109bef6ecf2802a55b5715cedc14813dffee599927e3bbfaa9. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/FRIDO2210332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0b151087b41bbe2158c4159dd76f6683b0a21df217ef55956715ee75d0c4f0. 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/FRIDO2210327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6ff6f26aac74b5e5762003b779494cb3ebf7c13e8c66b9159ba35bfad59f76. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/FRIDO2311644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b67895d15856599f184b2599998125dddab74b9506906373df61e6ce1426729. 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/FRIDO2510711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6ff6f26aac74b5e5762003b779494cb3ebf7c13e8c66b9159ba35bfad59f76. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/FRIDO2311644.