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 0x1b305b0a0d1e3239cefae0a31598a2075fd89504b9091fad83d215c4d994c776. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8a93083-8eea-42e1-a655-359bbfaf0559.json and https://artists.proofprofile.net/proofs/artist/e8a93083-8eea-42e1-a655-359bbfaf0559.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 0x83aa205f5d551f67aae03d365dca8840845a9d74ea2c4caf6d9cfd3e17575950. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/GBBPB1606970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d7c8c7b7bb4252e1818f043bb86480513653b6dbbd2d18dbf84b3b7649bdef. 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/GBBPB1606971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8628cc7eeb3a4370d4b4ab483fbd8f43cc728ae276c1fca75fb63fe939824a. 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/GBBPB1606972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aed7eace2a58d7feca8ea17c444e6935e4f84d8a2d621f6bb645d01bb2ffc7f. 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/GBBPB1606973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6883c6d29e91b622f9213b547b92c5cf091d415ccee3b142595d05e94558f3. 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/GBBPB1606974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363bb01c9742c18791c1f69128c5c3996c83f4edefeb0345d228a5ad9c88a14d. 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/GBBPB1606975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d967180904b609b99c5c825fb062374ed8ec1a702d6c7fb89ad8a615a3b6fa. 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/GBBPB1606976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b6467554b66c0237a946127cb1849f5fceb5ae5d1897ed31629b293878e17d. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBBPB1606977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcfba47245d2843bd66b7e783eb4a40adb98e89a3cb801cf2cc64cdfe3e3c3b. 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/GBBPB1606978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b39d8b5341bea70194fc3fab60d8c58ad9ebf8b9521638962307070e39b336. 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/GBBPB1606979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a03511f136b44a9087c1c93159852a8172f2320b84bc989758076266d009bc. 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/GBBPB1505239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac4f8b619ca4c1667514c0366799df7f9af6c6b548f80357cf4218f967162fe. 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/GBBPB1505240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf078c77eacf99e6be848e53666e20a05231562d0b604a288211eaf8001cfe42f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBBPB1505241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd29c46c8767bde91e608bc5467271475f5761be242416048c7cc9f2221cb827. 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/GBBPB1505242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a890b6a00eddcff6e60cafeb41b109e2ead4bfa5a25cd783a3ba807983d9ac2. 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/GBBPB1505243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7738399755b2f5c5f22f0d64c887b2c68963a43e937ff30da99dc8e78935c4ac. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/GBBPB1505244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b67d9175c52687e0ec3df696b895624eaa2ff10bf38812944166f661854e477. 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/GBBPB1505245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fbac8c4aabf03df5aca0d775dd9464477e5750dbee427d785428ba95a00546. 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/GBBPB1505246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda773e49efc30ef1edbbcaf2f3b73cefec95ce66fe48f42bad27bab413a57964. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/GBBPB1505247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b37af42e1f4965eb602d3120027b40f8f189fabb99f5bb65b92940a5c6470df. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBBPB1505248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b9a2ae386cfd081c7817692a6661adedd3ea2661c8fef9b4e119f4377bd3d6. 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/TCACM1696972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5eab576373de12d1180c1fba57274221d8d26b8b29311ecef062e272d7e5013. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCACM1696973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf89f5ef6b7db8ca2170f4362723ca4bf4c5f1276372a535888f9993c0e0877. 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/TCACM1696976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12f740fab2b4cb2afc6e722075c64b9de5abf72e767952607ed44e8a37e107c. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/TCACM1696981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160ddc7366da80edf9a98851c996aa66199d7803ca82a0861030c90fd3ec4bb0. 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/TCACM1696987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c681e649c03c90979aa0eebb1fa5b25b4ab0fc8304cdd335d9525d6f48b7f65. 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/TCACM1696991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9677f823cd36d61672283b5e6738b4e7f3a921896a00100990283e6899132a6e. 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/TCACM1696993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6619952e01ccdb25d9585ba598e7d24b7e7f48ee60330f2dd61905dadf196a. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/TCABJ1284979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ce9ec92aa5c06bedba3353f6b1dd32c25671f387ceea9aa811e344c3f54f48. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/TCABJ1284980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73eb5493b5dea13e69a4a4cc64359c756b226c13810f638dc12db8b1ee1abcc2. 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/TCABJ1284981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45edce288a3ebbcc56441ec1204a0e21085aa92e6ccc32676e9cdcd316c1737. 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/TCACM1696862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12e1e7a97f22c3a523dfe9fb43a886507edc75d18062c1c4896f27fdba89313. 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/TCACM1696864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a7b920f65d5345577a8f2d52f51c9326762a5c828506205651090e01797249. 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/TCACM1696877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ceabcaee007e50347bdb68fef2af9d63dfa9bea028e49b91bb42d18e074a25. 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/TCADS1861173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57bd9f43ebb019ae692098b74778992192a39b8e72f6f5b4b8e00cd8cac3aed. 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/TCADS1861174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7154bcd2ba17fe377b40f131b3230008dc10fd23ab8cc6a3c69c170d8bbfcb63. 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/TCADS1861178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c05dcf2ea4c5cfcf96c3fac41d883a705e9e5f31db22a503212a576237f5be. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/TCADS1861182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78315a5fb2d98920fdac408f926be8e296cb50efaebd14789b78fd59fbf14e00. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/TCADS1861185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf1a32dd1d9485e2583855f2db6e428c22685aabdd8ca74b824bf76aa8cf48d. 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/TCACM1696718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a0c76dfea662bae62d95226af2de934f710840b0db80a95c2082c54263e9df. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/TCACM1696760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725652f29a51ac158b55eb8271bb93146734ec0a017d86920655b32c79aa0f37. 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/TCACM1696764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fff0ed9a6a05289d00d18d12f3fb14f35b2bcd54b0c61028acb1b93fa64698. 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/TCACM1696765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876434e91bb5a8083b2bc72d23e20a6e8b18223f214aff8624ae47816849694a. 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/TCACM1696767.