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 0xfd27e140c3f3fc19f73db3b3b4127a11ed694184c7cf0d6d8a403ae840fbe32d. 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/35437ccb-d3ac-42e7-8968-5c106d4ea611.json and https://artists.proofprofile.net/proofs/artist/35437ccb-d3ac-42e7-8968-5c106d4ea611.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 0xacfe886911512dddad97b6c49210b152f617c2480d3153e4ec5caa47f6598c51. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GX5MX2227993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7703a8567408e2d3998dbd3acaf8b0ed5c30d14dad71314ebfb3d1d643be210c. 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/GX5MX2227986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7487e57c389f727612c2efa3761e9384976161c07c42b808212c3375ebfdbf52. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/GX5MX2227979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1034ae85014f6e97cb7528ff507075bfbf9af8db3385c9329bbaf9979f6f87d9. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GX5MX2241498.
Exit Music (For A Film) (Slowed + Reverb)
Undone - The Sweater Song (Slowed + Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16879837f110fa97802a76d44d749f85e9505643129ecbd8aa4cbb12a5326e7. 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/GX5MX2282982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670b94ac622b77e1c91f7c535af2beed2f8163f5a033bf6192fc59a0b0f31a47. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GX8KD2207387.
Street Spirit (Fade Out) (Slowed + Reverb)
Change (In the House of Flies) (Slowed + Reverb)
The Day I Tried To Live (Slowed + Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a65d6f734e29e1430ce43cc0a557436237803a239cec8c94312207da42b4bb. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/GX8LE2356849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d128cf7e3bce4404ace886e104c67723b6e290aaf829d52cbbcee6bec7cea9e. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GX3HH2362540.
Stay Together For The Kids (Slowed + Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84fb845626aab30d35a7ea042e882076d287dacea3b7495b0dc723b61d8cfbd5. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GX5MY2386523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd127f750386b2c8086bf6d7722d5fbbf0cd94994adb9c1b2846e55724b1c77. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GX5MY2366733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9776f004972bf404c955c3de8e3b279ecfdd318f221badd70f78ebd30729d78a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GX89G2482321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700c20ec7574b646660f5d23e81f64ecc1795afa4783e76a4401e8f3765c2820. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GX8LE2478734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3230e9b66ac3d0f66cd08fba32c1ee7e950dec2205fcfedf1d0b31689a27d9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX8LE2433443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c9e0978b54f5d976b40e5d966df4e4ed0167bf57c18cc39638b3ea243882f0. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GX8LE2428864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26591490e2de389518dbd633ca9fb1f7082508157f57b2d6e1537d7cb3227c0. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GX38U2456520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfadadcad6797636bb5929a70be29cd5500562e460e2ae8f86895163b0b479d. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GX3HH2491801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760f08b156a83fb4f22643120ba9e87127a04f7c5dccbc3db31e049167db0f56. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/GX3HH2463806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c78898ca82f6d20e512b131326bf23f46463d02d598d95b321ddccc3e014e83. 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/GX4R52484227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f9b9febbb91f524fd97e45c3168f09572e8e5cd4b2c1f7f87f90245c747500. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:51:22Z), 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/GX4R52404833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64e4f3df22021121887a08a7f0be711eeddb3fb359380d96d65a4cf4abd1216. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GX89G2528224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6185524b34f454a7b68fe2e5021084b56243a76ab9dc141cda9d5b819f1f357. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GX8KD2504881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6bad71f1ce2dfc211e1da743171b431ceb59de57f1eedb481eaffada6fb35b. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GX8KD2542282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af34ee5ca7c5f49b1cd6bb0cc865f4180d9bf5c857efb0e2ea8342ba0119335. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/GX8LD2559836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8c96c782e696f94a186a755ff6a899df2dbdf383ff9457086abb21e8363750. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GX8LD2515090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2d37b7699fa20843ecb5d1518fcd348d6d7f0d08d97179180ab1587099a4b7. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GX8LD2507994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6797e18c820b6014c95c1548def8baecfc90c7086b4fc7048de5b5a4cf9db5b9. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GX8LD2568244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbec3b4c0b852348dd37a09937473250d962d40dc54e541939d5847f09649d1. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GX8LE2594251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba635122cc5db93cdd3b69bfd733159d759563ce277da131fc8de25eaf731367. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GX8LE2563162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1ac4b5e4a23360a2145cfd29668b55ff7fa7e3ea1ff0f20cea7add119b3275. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GX8LE2527531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55d010c58f28e697e627177e7c007de20a7b3ea03701c71fed1a2f8c27e2cbd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GX8LE2555376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bde3ee47ab3eb5975d208c3219c53bc9c378432ac0b83d439a3b9ebe6648ee. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX8LE2553656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8b21646e1dd8e761e9755396c93b756b6ee424552f73eaf781a3890df9cdb3. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GX38U2518713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0782ab6dfa950e9ac184c56e660592fe2d7da38fc722704d172b3c7bfaefebcf. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GX38U2586774.