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 0xf3f090483a2afe3d81d719be62fc72d74c689da59fddac4f9761bb27fccbe5c5. 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/7eb3f8b9-89e2-4cd9-af5a-cf201e9c1a97.json and https://artists.proofprofile.net/proofs/artist/7eb3f8b9-89e2-4cd9-af5a-cf201e9c1a97.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2992129edd4f77ff31d7108d04e0d80b21a7ef8eab85093aae1586476121af. 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/NLCK41087407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7570dd09568c0daa0f0c05a0e272a77512bb148f273c9c9b9df3cb0e48f41d3b. 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/NLCK41087424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5c3ef8a8575b5f8d316d406de39ddb29353eed0a8c7a91f66ad582952d5a31. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/NLCK41087412.
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 0xda4ed2acec85037350fb91df44ce0602e6e4836b4419d1d4033e0f69441e8b5b. 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/FR9W12113138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c3c7312bd6ed64b35520bc9c6159243e4da7a9a7c0c87e294cc8d47b0ad254. 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/QZ5FN2232328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad155045e1b54a6067f787c497b2b9b940131ca703c24b02b01f160257fb1514. 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/QZ5FN2232337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc0efa4be4d7bb1e92882d2957401f4848fa5927a729dc46088f5abd3662a71. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZ5FN2233803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadebbf9e07c614eed64b777ad04f5d01e0a6cedfcad923ed9d9d3369a84446af. 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/QZMHN2220690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc380b93c3153a175d424c01a254236623e3efae3f8a32bc4d9f70f9fe0e953ba. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZS632243063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b0111f3ebb90acef093090fdbf494b01e4b2f2d20b23aea4ecae5dcf5cd871. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZS652228243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e04a4b6b8363b83afd181f3e2bca245132013b31f02e32305fdc890affb597. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZS642263216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3525c5641e35031c927d6164f09f023a50a5674574b8c055677c02c35d0a8bb0. 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/QZKDK2243968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d553ff44b4e044565a1842790d3940b9d05bb444671f64f91d77bdc22ab790. 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/QZKDK2267774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b3987ecfd18d356ab44a57b65170c841d778ad9a29dd7c2881ed9ffaf93e41. 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/QZKDK2288842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb38126beafae1b6c1d1e4944ade533c7866bd919294bd95654926f68783f4f. 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/QZKDK2287998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e7a9a9ecfae05a466244668d8dc660d617e67fa2241715dc62dbdbd6364097. 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/CAGOO2005242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c07aed4414341eb12b93fb7cdf082fa5b02d36e5d04b2602ae87cc6319d833. 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/QZHZD2070406.
Release The Pressure - Nobrac & Lemane Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a22a59a59b3a5415e11ad76d2804c68bc619a10ec2c2c89f5537d3c17e57175. 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/QZHZD2070445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b2ff5d5480686dfe5c2dda227380c07727084b8c8fe881901c0c0025847c82. 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/QZHZD2070418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95bbfe85e4ea57d213cc09c9eb4c1cea352cd8c1f9b231e8e2c945a78a92d2d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/QZHZD2070435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937e11f3f90d85e219642abf9baccd036175be4ff5c8c68e2b4ac5ef1ef57b57. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZFP52097338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fa7c7dc1c7846e302a7ad1c3a8876ec7354290f876c2f186842f9c9fb366d9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZFP52014129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd495a8ecd5e46ffc477cb7e6be0ad5df754eb9c97c1cfeee66118860ddeb8d11. 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/QZFP52055816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eff6f93f54967a1c65657b58ace9516fc782528047991e8487a15fbf215c1cb. 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/QZFP52087377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d83aedad8f0ccc4c54f57036b0876e6e2088122de2294d0305e1728dbcc458. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZFP52014130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057084f683b059a57824efe1f7d58e221299196ecc09e1f32b53bd72b4e402cc. 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/QZFP52055817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8854ffe811f5aef899730eba7424fadf86a85d2bfb118d7b1c383a8dc54c91. 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/CA5KR1934281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5056b7dbe48e30c672d6b35d609da4a6737c15a3351b2025f340552d67466962. 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/FRIDO2011032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bc700979e577d4f32f4da834a96bacc35f750f2776dc168449976a5b361bb2. 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/FRIDO2011039.
How to Fake Success - Midnight Vices Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd04328070e998e526208add9f7d5436ba1389398d9190513527092ee191b06. 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/FRIDO2011040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d8b1141264c894ee99e2f23858410d83a09c3353ed83e7320c4bac52ac6556. 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/DGA062025191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd8fd45bf3e8d731a8835f0480a571b8f6b1271371607c9b9035e116ce5fdeb. 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/DGA062025193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93ef4958843673167b6bf38f3b2702b8e64bd3654010d0152bb2df41ad1dd43. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DGA062025194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769499afc00fca4a6fd3af16d220c44d0655df7a3fec273506c942fef5989366. 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/CA5KR2149038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434c43666eac58aa0321e8e75567c46db1091a7a9595a3e02f7de62c7046a4c7. 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/CA5KR2149043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe480049d713c73ac6e3fef8b59c89828b65425b825b3d709a198e5ba775991c5. 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/NLCK41092439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0830530f3f2da14418ec5393e14f6f2487b7c986fc84ca62f3853f7631922b0e. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/NLCK41092438.