Original Broadway Cast of Ragtime: The Musical
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 0x23d50db557cb318d2915a54aa14d8ff74ff0f7ed3da61fea62dc9657fd62ad48. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d6a187b-7843-4100-8155-5c30f9bf984b.json and https://artists.proofprofile.net/proofs/artist/6d6a187b-7843-4100-8155-5c30f9bf984b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ragtime: The Musical (Original Broadway Cast Recording)
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 0xae460b449f5283c7594188dc991d1caa48ca1bff148907ce02ac0a8f5938c389. 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/USBC19800929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80ce0f1cef96278f2a69d813028fd4f4bed99884fa1917698b9c8b01424abe2. 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/USBC19800950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d6e8b69a5da477bc05111bfbfb6cabcec52adc767ef79cdfc82a31abf37291. 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/USBC19800930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2ecacf013b8f9c06150501493c0cc9f5a098623180f3b37e9ce87b570342b7. 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/USBC19800951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc024fae81af1f18f150614bcffe389a57ea36b1e320a18eeedab3cffac65aa4e. 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/USBC19800952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbd873157a9c01931a95afb4c614210cc3d851c71a460ae7f2d4e57a46e3f4d. 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/USBC19800931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e9cc7f6dd509498e40248fa7470e07134b3c0bfd07439e7a1b6d3ca2ef0374. 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/USBC19800932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37793f9a00eeef2db84f96ca9f1c995417a758e70dc3de7dc40f30b6cd8da643. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USBC19800953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2e18a887e4338177a9927d407e3785cc3ae9af3888a7b4fb9d2607b1fa1e45. 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/USBC19800954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5112893841213c41d11a88e055b2a43f8b16ada37d96c897f17978632d2992bb. 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/USBC19800933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a63a91303d063f867c1a0c9fbda0a55452962dc6c4ec199c892c0488a2250d. 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/USBC19800955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65830649b3a8c85919ed81123842cfb40f8cb81bafaf6962693e6caa9a4459c. 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/USBC19800934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc1f6319042b92d69765d07b2712ca9e687501ad103a766f1e474c4c474e791. 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/USBC19800935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05297331582748965d5f37a3ee6ce6f828766e9d9c8393538e073f29a2b49362. 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/USBC19800956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84dde0d50421441eccb04d522da36bd86e1d1c4ae674435ae26cb1ee44e9ec3. 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/USBC19800936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b6eda3ef74265be88ea2e51646fdead7c4553ff6c2444aa1f488dc28a5012b. 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/USBC19800957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d3645e75405464c9c6c42ab6fd586b47343a0b5b32c9d33bcb9c8283d83f45. 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/USBC19800937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b150ab960d4f545b1b1fec20bf766bc939dd8570431698a2f25ecacd8e968c5. 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/USBC19800958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6477847351c8679390cfbc1ea29575d184809025b34dcb0d734a2c716e777eee. 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/USBC19800959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3ecb0658a32e98eb6cf7d338ce03e5a0e55f0318f3f4b53605870bcf603fc7. 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/USBC19800938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8673561fc96db62762169c4a81ebe661ee0580dc8c6cec83aeef13caf2dcbb17. 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/USBC19800939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084415a3c6942bd6cea3125db8e4a985c4897433d5b669fae6b86690095d7f09. 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/USBC19800960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c3d10b40baf9d53097901a582944f286c3de8d16768348adf43a619b2e12f9. 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/USBC19606893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ba043ba6d265f0d5ac248f0530569b9ee530921b2eae2d8274d76d8810812e. 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/USBC19800961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abf4e108fa5cd1d84f67da91ab0b39bd5058861fafa328840fcef7fed3e00b3. 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/USBC19800941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7dae0610dc6167af497370303ab1a5e468af2f2454d44c7228286556d9e19f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USBC19800962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4217b19b275389207f44c61dad42c3b17540e08f13cb2691e2ca57955232a3. 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/USBC19800963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f48f9925a44edcee5ff63b53e7dce4e62e715e2c4537949aa3ca5f8b12f5294. 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/USBC19606894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9dc8dbf827d28a74cfe2a11bb613f7c63ddefadb1c35b9fb9f1d5915f774d8. 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/USBC19800943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6072b3616db1d42e0370609327739d0b68de5a4d53f49c3e22020dd84026a8f5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USBC19800964.
The Night that Goldman Spoke at Union Square
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9061b80917e14cd9a0b9d67823dc4d4456682bccfa0a03f57c4aebd6a640db1c. 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/USBC19800944.
Epilogue: Ragtime (Reprise) / Wheels of a Dream (Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbffe9a1957278a238908be73e8583565a844985f8d0d4203993ae3d54bd38cb. 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/USBC19800965.
The Ragtime Symphonic Suite (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7de503ce51675b5657428f772e69e3eb2e30090f4424011c9407916de8f25e. 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/USBC19800966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7080af3968dd0f364b35a1446031dc34b61169e8e3e32fc149298d319d48645. 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/USBC19800945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa255a166c0bc66a35dded90d62d9797c39d70a3dda94582dfe99e8b7e2e0b799. 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/USBC19800946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d05cca82f62d754a02b89be81f2c7d92415d44776776067f2ea5d802a4155a. 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/USBC19800947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47643219a494452ef2840ef35f44f400fab90d2cd76bf4605c3e7ef7579eab0f. 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/USBC19800948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ae988a25b31cf8ee3cb8daebac537031a243b89a37fe8e0e7a2bbd5e0ac571. 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/USBC19800949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c3d10b40baf9d53097901a582944f286c3de8d16768348adf43a619b2e12f9. 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/USBC19606893.