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 0x53d0ed32624a8b8d9c19a9132c05c10e752ed09e98c0d380ad923c497b50c4af. 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/20fb6da9-8962-44cd-b431-32de216b3994.json and https://artists.proofprofile.net/proofs/artist/20fb6da9-8962-44cd-b431-32de216b3994.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 0xe82dd44b9763a210593cf17c49baa39bad8db78935ed86c8578b65bc8bdb66a3. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZAHP1795050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17473049b4b450d25d4740364b63029870be36cb8459ecec9993df061ff47a2d. 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/QZTH92105287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98837fcd56bb88e4e72ebcf878c4d42b4de6b83c5157f076910791c16f0bda33. 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/QZHN42251036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16aa54c46bfcbab0420c3f36f14a3d8b292754f43222044e10c2aba1d9709591. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:08:57Z), 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/QZFZ72372190.
Eat Your Ass In The Morning (Digatrip Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75a7470c3d895f2213a187bd1b7591f111123c8b130dc1c958f3a0b1fb60b72. 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/QZMHP2336684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e1061441399ba0c94ec79093192b82a3aefb297cad2999548919314b546117. 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/QZNWT2306321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9b1994b3963aa68df893ad4514baca78000ec5bf086239d530dd00f99869fc. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTBD2384185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724a3e55b06cb6d6862ef534073490c6dc9127978a977a7c20d850deb178cc66. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:27:26Z), 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/QZHN62568305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7580d93e8aff92053912dc76c6149717226741d2873927b438e77d1d0ec700d9. 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/BXZYA2400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ebbf4bba613e43f821072d052a0419b15751b6f125f4e3f95b4f0ecaf55b36. 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/BXZYA2400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f19fda8d7ac359009d523f583ae4afc81ee1b07418702a0c195facdd631aa0. 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/QM42K2286356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195a9eb4b9b8b6c756432b0e45518a4a20e8985225bbbd85769327640fc5666e. 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/QM42K2278023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebe4de97bb9f971fb4354b57e715fb31b64aa92a2b47793ac9de638ac6e33c9. 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/QZFZ32477454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cc661b35ea9c4ba464b4b199c3bbe4a5372c67893ea0122b3d27c08967896c. 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/QZFZ32477455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f49c5caf34a4f287131ac2fc44f82d4c0a17af4a950a5d895c57106be6f52f. 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/QZFZ32477456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9982bbbecc2dfe63081319f1e934c879508db380ec3a28f9a118f7c733bc229. 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/QZFZ32477458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cc3e06c9c5f1fb038bb0ad339b6526ebc8cdb4445f669a29f644c255762241. 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/QZFZ32477459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1787ffdd983b030208d8ab0241163fcfc44a020d614a37890e1d0523f6f66d96. 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/QZFZ32477460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b56db4fdda82984a51bd52d098c6a11ec3e11f47802a304919b34c68b8b457d. 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/QZFZ32477461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dda360820b4061a2a7ffdaf8bacb1f62482323244ad033bb35ee4958d6130f. 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/QZFZ32477462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87482f77070706e62e3cd953d392808a2eff5726b76e7846378c29c6902396af. 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/QZFZ32477463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2620ea4b74f7e40b6f6b39af12e713b3ebf1361da729cabe5728d2878d4932b8. 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/QZFZ32477464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa993f1354cf2b0222f5080193033b02c557f3cb80ef5ce05149d444fcaeeae22. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QZKDK2210911.
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 0x80a509ceac9781df7354e5e2d6bfe3287759a26b31a8d81bfdee8b410ee5be27. 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/QZKDK2286551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6369176901113d13ab427d6b6eb34dc483719926c4da552c98a222dfb7f336b9. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/QZKDK2279092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa655105995ddb2ddca596b65119ec3ef33f998ace1b504b287dd99685907e165. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QM42K2295247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08d2fb5b03ec2c461d9400ad8050354e8518ec1053dcc78fdb54768cba77153. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZKDK2231532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc414a3f67e8b4fabf592fd3710f41d2a8188dec61a6c15e25dc5498d3bfe4e. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QM42K2281342.