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 0x41f53a72f5bfc1a1659e98e85215ac3a67b5c4f8e7a93dcaaf172ac57aac71ae. Chain 2 (Bitcoin): anchored in block 953707 (2026-06-14T23:22:21Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b4fe251-86ae-41d1-895f-ad7f1ba379c3.json and https://artists.proofprofile.net/proofs/artist/7b4fe251-86ae-41d1-895f-ad7f1ba379c3.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 0x586f0bea37d9470a6b618f3c5789e445de1f8c38fa27c5aedf0642a1b71dfabd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GXBAV2348558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f1d28c17b33bdf925fe428b7f68aa387ec63b519a143b52023cec15f93da1c. 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/QZTB22302704.
Carlos Danger presents: Irish Hash Mafia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd29c6ebde3d1f4c857a5335241733a72043892e937d95403a9ed7119942ba0f. 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/QZMEN2414610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0be791c5dcfa811fc17ca6c3c1fadf898e0e74abc0395e77079c5edf0f0c88. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZMEN2414612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca90e5db79fb8700ed9aacf0bb11e87b42df7736c441488b632c2eb529b89e82. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZMEN2414613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8075a551c99e68a395dbfaa5d13aa88077c27166e9872f4a3ef66f947e2a0049. 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/QZK6F2485133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c80da8f4340538ff0a7dd9c574524e91d4421326c91662a2ad4e3dfd30c5c69. 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/QZMEN2414619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5fcb36e96175401ebf195df01934ca089ac491bda6aef50789153b63228d2d. 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/QZTAZ2285543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8075a551c99e68a395dbfaa5d13aa88077c27166e9872f4a3ef66f947e2a0049. 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/QZK6F2485133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24be0e85e377d378e9604d3071c5c056ed99090d7763d890b927dec4ff2132ad. 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/FRDX62304980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91dba8086c14448fb450c4cc417b57a0d45be2b1c759c03049a47f4fb2f03289. 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/QZK6Q2334342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf843ab04804f5f1f84800a52922c9aa5dfb56d7ace941a360edb3db143fea7d6. 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/QZPLS2123000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8817c3ad4e5530b1c04a0312b218ef9a97338684fac314e001802f1f91dce166. 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/DEH742404428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fce21503b11a1c8f0f8bb56905ee260c85ecae5adabac81d076d99236a35d0. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEH742404538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e14941567fb4b738f7b827290a9912f2fa338322d2dee91b38e07ec06415023. 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/DEH742412387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced9f6e8fbf2691dfb84fa9d30916f94fa7be1eaa3875559cf3154d4f0b48eca. 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/DEH742406475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe998cd30436642b93aadba2aa386d471139bb580443c2361e530aacbc0153a12. 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/TCAGJ2292431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf01253d989dbccf302b4999c2adc36a0b6bf172e730a30a105bd9d1530a3783. 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/ITRHE2400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf207c04f068ecb9a92557ec7fd209e0280547bceca617db7b96a5cf22d258fcc. 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/QZWFR2448731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537b814194bd90c9ad66548a8cbaa6e11fdae8961dd41f9fa025b71c25254a51. 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/QZWFR2448733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3b2610931dabb1d142dfe7f387b57d2e7968a7a072d934f11b99718c83c424. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZK6M2032219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f94c258f37237dc121ffabd855eb1b62207cb533c3445c9426333a7a2c9e708. 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/CAENV2368337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a879fb5ae97ea24da6c1f51ca5bead26ec57fddeb360079e00615275b89244. 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/QZFZ72351959.