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 0xee76fba46bf44764c635cd273694e75ce3498a192d22f34adcf713f2d14b8819. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6bb66b3-5240-466d-b7b2-f36457be3608.json and https://artists.proofprofile.net/proofs/artist/b6bb66b3-5240-466d-b7b2-f36457be3608.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 0xea06e733f58aab7f05a6c7222d15ddd80916e9e4682d0949cc6d040d897098f9. 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/NLT2H2301035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770f0d34c8f181a75a69c6ec0bca3eb6080d76139404f9762bbfa794f7b67e06. 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/NLT2H2300784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d9d40b424db9203334a203369126e1266386a32bde535a2a071b48618170d6. 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/NLYK92300125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee35fa8054071c97cfb1f803c4838bfdd756d25b6518f0e9230c240a7e54b69. 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/GX8LE2356422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b5c60f0263eb3ec7a3e02b8592901a9ff96057a71adf770d820dbaed32598d. 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/DEXW62300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f708b658c5e56b286924a632c114b2e4e7fc8870daf456b1ca8fbd45e476ff7. 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/NLT2H2300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4e3b25589ab5cf69942fe3494ca8c9d10452f7c424d4a809ce1a01acb84a8f. 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/GX8KD2367002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4590730301ef41882d65108e2266e7b19272490f098718330ed6d1003c67d68. 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/QZFYZ2312915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6566afaddbb97503c7c6c74bb524e6278113f99873e2c0a6e588ec740f38eb. 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/NLT2H2200489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770b3be6845c3800e882705eb2c817219b9ebf4c20fc9946616c63efea6ec83d. 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/NL2QC2100633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa77f2c1975dd4063a2175521b9ca9008cfc5dd93bcbcbb863cf8265cec5d66. 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/BE8LH2200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23996f1dcf694b7909657780a326aefbaf95ee413b1c932f5e47c0045ffa9afb. 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/QZV362220248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a6048152db8ae6920b2cc570b1b6d8a5491b64d4e8a8840eaba9f57812137a. 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/NLT2H2100630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a0b0c7b6cd59fbfe0cb2b76e91e370d5e054bb9dd4bc801cb69a0b489fb25a. 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/QZDA82100171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304556a510013681c1e0daacdeeac063a95c3097f2d08ace250097ee389d8604. 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/USNW41200060.
Breaking Free (Icehouseindustries Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13667f3dfb5b8883729fbe0d682edd813fc01117966e09ca7ff51f3e39264e91. 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/GX4R52427932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304556a510013681c1e0daacdeeac063a95c3097f2d08ace250097ee389d8604. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USNW41200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f8741eb669d1595d7f7aa03445ae314b08f3ff353704cbb3d2dd0098e52406. 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/FRD602113120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5913581c77f7f8ce56801c9f5faa4250d5976e3ca90aa46feda6898af122e1c. 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/FRD602113126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d9f8d69d55fbf92ddb9a9b36c89a49a90ce491b34f85dab0eb209269ff709f. 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/FRD602113128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5197cc05931a2ce15a837459b80d5ef0d29a707f8dbb9331bd0e86ac1e2cbc52. 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/FRD602113131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f560eb49620350965db5d54f234fba2f740a7db5849a840118e376e11e68fd. 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/FRD602113134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb95f74b77dfa12fffc06da09669576c24435621c204f25f0eda6d680c60bde. 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/FRD602217946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af0103a688553d46b5dc19d6ebc527c998358134da73ef5e46af0026abced6b. 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/FRD602217947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c8b375c758434af6a782e1421e5be8b520936bc1f4a5940dc532323ef13552. 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/FRD602217948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325c74b94396c58d7dcdab3981c9a0734027574ce3e6dc052643caa70e13e501. 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/FRD602320608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c90b76d3e77238ffd0afe219d5955a898e8d03b3bdc41eb81fd67761a959502. 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/FRD602320613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064c4e6d2ccb02b1c4393697640df13ac46a3d2c166bc03c63f0d5000a5f13ad. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FRD602320614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce47932a75f4b9f062fd090a6a60c33cbc0ef228c80d248006f617d4fb25d423. 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/FRD602320615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7419e34929c5745e78f66d9c52656de7a0b3163fc20faeeadda528e15492fa. 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/QZNWX2346520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64621161584ee3829f297464126a082ae492db1cd200f6374d308351914057a0. 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/FXR252502216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4662c2865e1b43d80b0d24ba8863836931c1be88a38b3b9d24306d26b2bd3d8d. 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/FXR252502218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c32e206fb21a082257d23e0d0d66de2952fa8e03b89f9862496382fd0c70337. 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/FXR252502222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f736705f6100dae553ac6b88d00ac2bf6a13069583916968ae9e21a0a20c679. 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/FXR252502224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dcfd21f8fa3ded373d6ba85e170a51536838f67aae133bdcfda8308c051989. 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/FXR252502231.