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 0x87ca40c7fda7322bf1b8c7aafdb2d5a4660d56794095a271284d081b62e2187e. 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/b7003b6c-703c-4498-8855-939476619275.json and https://artists.proofprofile.net/proofs/artist/b7003b6c-703c-4498-8855-939476619275.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Producers (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 0xf8acdeb287d323f3c2557a25fc47923a5326820f1679fc5db19374f39d0fc983. 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/USSM10103204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364638929a8f90a112e5baaa686e1d864a7f81220f518b34e742204d20b046f8. 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/USSM10103205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cefc6003c86e50c94c97005ee1bb8891928618cbbcd6f59b3885c2eaa2bd8ba. 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/USSM10103206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c6fb8dfc48df59e4073cb627424416dca468254d30c1b231e1e40d15887358. 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/USSM10103207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ed0df8c5f666f14f235f552428da08c046174273fac75945e5c9de11482dec. 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/USSM10103208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00a42123ab1aebd168416bb18ffcc0e482ac8ca8a9a430f4c5e305a3f514553. 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/USSM10103209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b2ade49fcdbccea6f87ed4814b1b6438172530d557864404de98a6323f163c. 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/USSM10103210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506a2c3c5c37d39f979d78608c3d6252c482f7f95c3c360e3c7980c1732e95dd. 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/USSM10103211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7da4dc09d966357d09bf7a2f60c655ec703feea7443f7e6f4dbe51fad8d1e2c. 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/USSM10103212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d303dc6a054f56b5dbb9e8ab422adc93c863b2b468da1e01903543fced98cd2. 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/USSM10103213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6301ae132a9498916eb59bce5e2ef45f5088ae9496552c332fd20da25026220d. 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/USSM10103214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9761cf12843b06588f0583644eb72c02a6557841b621654ea901b40b4717cde. 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/USSM10103215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7709229dcf68c7b35a515446b50b3b0f346aaad134081f5e6e34907fcbce83ff. 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/USSM10103216.
You Never Say Good Luck on Opening Night
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01bd94b59326149fddc3869842f89770d23be11ad71626e1a451a69544d3fac. 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/USSM10103217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb094c1ac39ee918266531b85528379da4bf9a737174da14571402ba1b446f706. 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/USSM10103221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1ebe8546c4537526b55720df42b700c4780731beef04a8f09a6913f0df5694. 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/USSM10103218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f4ea366ba13b9dc7b2aad098d7da98b6afd8cdc2d8fde78b21491ab001149a. 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/USSM10103223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14d67cab87b7f716f6fe058d8995edd4b0a609c7ef672a0e357865cfaf6e1ad. 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/USSM10103219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c9fdc4c306c705abba82bace99f9d8fd37cbd4f5745057b836967f6c26df53. 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/USSM10103220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8c4881f2e998c14531f3059eee2c3f9c51a1dbb6f8b598b59eb138ac37f6e3. 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/USSM10103222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cefc6003c86e50c94c97005ee1bb8891928618cbbcd6f59b3885c2eaa2bd8ba. 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/USSM10103206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ed0df8c5f666f14f235f552428da08c046174273fac75945e5c9de11482dec. 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/USSM10103208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6301ae132a9498916eb59bce5e2ef45f5088ae9496552c332fd20da25026220d. 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/USSM10103214.