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 0x3c04a62036dba078d3c1388abf21049f8d08f688a1454cb4f44cb5dffb3f597d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffa77450-b763-4b6d-b4b0-5a0d2058ce15.json and https://artists.proofprofile.net/proofs/artist/ffa77450-b763-4b6d-b4b0-5a0d2058ce15.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 0x16643352d7e336d1f8bd3ae0b70e3ec4813568e1cbc4b0ef0f01eb9d1608522e. 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/JP92N2384901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f26ab69580aea5b9ca8bc7689cae18eca37938325bf9ae231f28bafeba7ec20. 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/JP92N2276487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f9a07c0d529b4a1385931643aaf8d44267fe96b957f3c5adbeabfb7c2bb4c6. 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/JP92N2329617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7029c04d9b501ac92ef0868d6318f5dd2a4706941c51d340fa557605db51bdcf. 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/JP92N2384902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b14f352d1ddc762dd084da18fd42d81f2d9b4b5a496fd8404a9a5e8cae5c3b8. 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/JP92N2384903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4a593ebc5855c609229be1c8fe0d2e8175c778bdd90bc8c093101bdd165d48. 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/JP92N2384904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199f3b91effea85d28d222e9dc7fce3b920d1f625541a2ee13544a6374a4c613. 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/JP92N2384905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7f931d2d863ab868316e5ee1ad963531329deffddf67cca3c97a618f9d14e9. 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/JP92N2384906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4250aa19f9dbd5c4e13c8d9b42f97dd8a358f4498428023edf24a402a6cf13. 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/JP92N2278532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ecf0dd158cb324b856112d9ba1ecda1025f8f8579babf9ac99d4a8b0337b81. 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/JP92N2384907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113691a81c00d3c2a31630d520c34fad18c07cb8a44e8043724a70354638be53. 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/JP92N2384908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651318dc5c0a66711c3595a74d8b66374f75cf4232b4cf9fa738d30a768de7f3. 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/JP92N2384909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e925b6a19403a0308b42a0a874c0fd59fcbce821049ea7ccfc55905e84e6fa5. 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/JP92N2231694.
テレキャスター・テレキャスター・テレキャスター
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19e8bb98579a42666d8dafabac8a049727b57fb15abdeb8645bb7e9c20aaec7. 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/TCJPN2161699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ce27a3cc5afa66ba0bb9f82a97662c4e800683e9d8424586c071f05433dc9d. 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/JP92N2231695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88db7b9cee061abcf7223eaa12c7f044df729058f379597afc1b344f4533c209. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCJPQ2100671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa850650ab74efb78c371f835b808a49be019d1a244428f7b5a830a2d7ce5ce6. 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/JP92N2227015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861a8a3511c1b6f1d68f09508150204b92b419001770611c3b89137fead860b1. 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/JPB602122416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b89686ee2328d54fb8fc5d2218896aeb52bd1e4d4a247abe9a7b8acbd8a050. 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/TCJPO2133632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670210253fa9d2cba7893ddd76a2fec699bd4d95914d36d05a72fca050010fa4. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:51:07Z), 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/JP92N2221134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796abc0a21235071989e7d0fcaa22ba06ca550b90b053f7032ecde7083ad70f8. 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/JP92N2231699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bebde0011165a4e712ce0f36a0f9beb50112315571e7ce41c5fa6a5f0d14d52. 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/JP92N2347455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c94de4b19ec6a2160373c1f8950d3d6c81d36e174fef6bf2861ca3ad036399. 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/JP92N2347456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476a846e6316257d81b472062208b5a48f9a041ba19a28e46d726fdce86b1296. 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/JP92N2347457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0656b1596a8cabbd0265ad0d3b0b1c7ec0ab51fce1fbdd38d4b1610a0a376cf. 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/JP92N2347458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f9a07c0d529b4a1385931643aaf8d44267fe96b957f3c5adbeabfb7c2bb4c6. 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/JP92N2329617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4250aa19f9dbd5c4e13c8d9b42f97dd8a358f4498428023edf24a402a6cf13. 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/JP92N2278532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f26ab69580aea5b9ca8bc7689cae18eca37938325bf9ae231f28bafeba7ec20. 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/JP92N2276487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa850650ab74efb78c371f835b808a49be019d1a244428f7b5a830a2d7ce5ce6. 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/JP92N2227015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861a8a3511c1b6f1d68f09508150204b92b419001770611c3b89137fead860b1. 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/JPB602122416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88db7b9cee061abcf7223eaa12c7f044df729058f379597afc1b344f4533c209. 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/TCJPQ2100671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b89686ee2328d54fb8fc5d2218896aeb52bd1e4d4a247abe9a7b8acbd8a050. 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/TCJPO2133632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19e8bb98579a42666d8dafabac8a049727b57fb15abdeb8645bb7e9c20aaec7. 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/TCJPN2161699.