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 0x91763e41583803c6a6207688219939d426af53ccc3db24d3eb7e8d4933e983dd. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9fd6191-f77b-49f2-95d1-fc99784cbba1.json and https://artists.proofprofile.net/proofs/artist/f9fd6191-f77b-49f2-95d1-fc99784cbba1.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 0x47b5ec16f30244ed9e45413daccd05d4fef2d468286f4404b641e0226c1d6c72. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/NLS761800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c93ce5bb0950111a9836a18f5a8fd11cd0293ad22fe1b6e7838e04fb0de6c4. 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/NLH3Q1700131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8951f71f210cf65de681d1e8f494e8ce6a3872c875a4bb97c39c20838fc98200. 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/NL3GR2202902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656f6d59170d654198a7f577b481d2e3a7e1841628cc5a55e14f6ce5033a3b59. 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/NL3GR2202502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a63a7d5844206a3ce3bf5a757194bd946cb96ccbcbabd03a6397624515b908c. 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/NL3GR2201102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e32b68eb993d0563c4d3a53050a3c9f6df9ac47afd00a60db8fccf12360175. 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/NL3GR2200702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b930bfc934ee497cc6b1b9bfb04a6e5162a72b1b54d759a943831c74d52115. 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/DEAR42215405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8c4d12951feffdf3447869964030fa5a0ac0b31063930e554761d2e4b856f3. 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/NL3GR2107202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cf06fe2f77ed639f0a431507265b9ce73e5fa3e96b7966f5c719c722ba6744. 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/NL3GR2106702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb5daa1be59d5ba9b8c80a6bbdfcb00b0a1bde7fc01a6791842e797732a344c. 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/NL3GR2106602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9b7d9a86ab4f609fe7a7fc75a9f7dbc06efd2cd0524095b68a166c7d4f8c3e. 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/NL3GR2106502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc4500346c80bc4ce5b2c84df8ac1c84805d018d04988f1faecd8f40e628507. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/NL3GR2100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1499c99675e4036ea960014493520439dc40c4a5e4165bc4232befe01c51b4. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/NLH2L2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17d10161935b0c76d453a01b2625558063156a5cb0b09f5642e7d446f1b13f6. 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/NL3GR2100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0ea0284cf3e9df51a59091188163b8c4634b53c382602fe3cc06e22248aacc. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/NL3GR2000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9986e7daabc6cb1cce92cb059b05f59c5a3a502b8407fc7da1bfa96f609e67c6. 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/NL3GR2000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811f2e6b77167cc5c529049aba5de204dee9feed312a7a0485fea062b86fbf2e. 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/NL3GR2000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b883454917c07d80b61a45cb94d6b1d28862fc72402ccd3e1c58a3efbd8855e. 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/NL3GR2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7096c8952e77862c9df9cd8903e39e15d0bba95c542a03ff6471c04cbec19a. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/NL3GR2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2223a127cce948a924192cd212f39f9c6d35a0ad26ff2788c43aa7c59c11ed6. 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/GBKQU2011265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962ae88c48a74e010cabdab357ce432cf6881c4acb3cc047d93053f53fff428c. 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/NLRD51960122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06abf6796bef253ae17cbee2508de483d09caa38eaf5fd8856b77864a6e2ef5. 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/NLRD51960116.
Shock Therapy (Official Cranq Anthem 2019)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0848674f6a4233defbf7a5df473b30e73bb8cdea1ef960ffbcb984fe7cf120e7. 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/NLRD51960101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2f3111c9d2d83f3adb858f90490d334a2df36b3904d18d5baf34e9118811a9. 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/GBKQU1967607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63ea2ec9599de87a98d11aab738d54aef8dc3aa04df847e98dbbb1be6755978. 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/NLRD51930788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fe35d7450c8be3b33059c1a07ee3066fadae68473030f446fbf18213002bf0. 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/NLRD51930718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f01c8d659e077f9c6b65dc4ac7071102c2ef0b94292c30df074566672f56cd. 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/GBKQU1923182.