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 0xc9e1d6a89e5d91aecf2b36991e203d539af897ea6991e450afd4363a740521e0. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2342143-0911-43bc-adb3-d446a3610ed4.json and https://artists.proofprofile.net/proofs/artist/f2342143-0911-43bc-adb3-d446a3610ed4.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 0x002ddef15c60b467f7ab011dfe76565e925246886fa99a63099c2ea241b444c8. 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/NLB602100319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a491ce9ceca6b1e9bf9a432400d8984db41b783b93a5d597ac639f0bcff29ab. 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/NLB602100322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e727ba2f07c0de4addbbaf57b61462072d1de0cf1baebc13eef19d23529bab. 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/NLB602100326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d10fc46fabaf45bf0bffe96c3229bf5d7b14d6552ffadcec619de82fa5d619. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/NLB602100069.
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 0xfb2ee760b99398fd475bb0403da689378a173bf47324facc737f7d4e2eb82916. 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/NLB602100318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8b5d69a646cd62dbf3bcb73dd6c74dd4f3b02ea7efec312a24b536d582efca. 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/NLB602100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a76b6129cf47f9654b325da4777ceb8434069f0af150972ebb255891a4e15e8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLB602100321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d647445a45c71e647454ade26dc4f8fe43452505dfe435d40a8c8b04dd5057. 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/NLB601900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a72002d47d145f29f3ad28189bd2874cd172e6fdd3e1a23c52b22e65735231. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/NLB601900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287ca0b5d1886794c390ea8789a2cea4d4e0875366b964441d92ad106abf6790. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLB601900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5341967cf254506acf12c6dc922dad5b24e469058ec70db4b3e0cd4281c33f1a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLB601900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfd8631b824ffd7abe01ac484b0e6b413fe2ebb35ca8adc2118fbc0c2e63a38. 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/NLB601800161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8024e3d8a161cdbbbec27aa385eb53ef4a8a74918eddb9a09eb1b6596b23c75. 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/NLB601800162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eded6927e1ea65606cb9346329220aed5c0ac9c3337d47eb89cbccd71adbabd. 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/NLB601800169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6b5db053ddc738676516dc6eb946de56cc5693e18b021c8cf041f8fc4fba58. 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/NLB601800170.
Suite No 2: I so Sad, II Drifting, III Gettin' in over My Head, IV so Sad (Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874b3a4ee2f4d2316b9ec42b98a2f2ae0b8f4471bd91341ece824d7319d152f1. 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/NLB601800171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260f52085a66750f62d59d3f94537427b01fd3bfa53b7ef73b8a4bbcea3adc4e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLB601800160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6915503de9aa8c289543d3bfc000b70e53d8d48e131a29395904eea7bdf389. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLB601800164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976bc6682f6e1850fcc9a32c1f814f9fa99a06d50454ecd4d557259f338e64bc. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLB601800166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0587b2b912b513db98631f914b62156a1c53d1413187f1692165ef69d9dce647. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/NLB601800165.
Suite No 1: I Unbelievable, II the Girl in the Window
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6777d33f009dcc9139203a746942d08eb739d0090fd1a67923448ddb88a8d986. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NLB601800167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf712a1c5e333808846dcbf35daeb4cfa499779be00e57e0086824b565b2cba8b. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/NLB601800163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5427858376c7b361e7fb911a90700971b4ce53a599cca23b239ace22a40384. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NLB601800168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d27c37ba13ab11e0a19219160fc904b3dd8ed9202209c19bba368f9b91beaf. 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/NLB601500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496f29caaab7186dc1ddda58bfe2146593ca288af2f83f17f0be14b58be5fc56. 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/NLB601500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8276443a07ba8cb757e2f949781fa489269cc21de6e9bda64f4f4d595f27bd34. 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/NLB601500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cdf6d726c2133d594d67a475e240e31c9eb0fb5c5e8e6d20d21c2938e70ca5. 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/NLB601500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a226cd051041b5cac51925b72e41c97bec147f0b366ce7ec5468c2332f818dd. 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/NLB601500061.
Immigration Man (Live - Onder Invloed Session)