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 0x8263b9c41c533145916210238af95bd5497eb27b3670f61244e8dc7eae34f15b. 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/64b980cd-aa14-46cb-83d9-e94323a1dc48.json and https://artists.proofprofile.net/proofs/artist/64b980cd-aa14-46cb-83d9-e94323a1dc48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Into The Woods (2022 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 0x5ca74ff6bf6e2ef7b8f52cff06fa233483f1597ddd5b33942ed5acebe129556b. 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/USC4R2224086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c16a0b3683f130a925b4a57bb5a858710c50b8a4a8e6c8e30b492c79110543. 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/USC4R2224087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed6ad9563f82437bd21c4cb809b5b9e15d185b2d413172a089c081f0e7f9b03. 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/USC4R2224088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd246eccfbdee920513ad36b4c62533770c26c552c38d96c263fc1cd32eca3e0. 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/USC4R2224089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ec5e6d1402f055363046c9c65141d3e633ef6df4ed163c99b43266ae5f18be. 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/USC4R2224090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84917f0e9694a4696c279f3acbdb9fe1242d468dbcf0e1e856b28f87c197d61c. 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/USC4R2224091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383dff4c7dffe87678499b642a642b8808b489257e1f95336978659661ca7313. 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/USC4R2224092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d151914fa4924ff501c5b1b8bdbefaea0e4edd25235cb8ae445053f874531d. 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/USC4R2224093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660ba32ff784888fdf89b438c2796fdef36c8a9fbe1281a8480f04dcbf84fc6a. 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/USC4R2224094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780b0e4fe2db7926d754f1343d6e9cd6a1f29100a960501e24663d6789baae72. 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/USC4R2224095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aae958c8472bd34507bf1adb9fe21361e1513e9a56af5495b449604b6cc5ee3. 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/USC4R2224096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a507f39bd9a6e1f9d64792aa0df58accc13699e5c4884aef35bde5ff12fbae7. 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/USC4R2224097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1655c913c16a04004dc5625832743ae708616da5fe61f9750ae7cc35b14ba243. 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/USC4R2224098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703429ea0834b1f9d142ae525c92e08fca9e5c31252efe18173e8747849e128c. 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/USC4R2224099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74dc04a49860d0a98d4f15341af9351fe8553930d9ce78bf3521c35b356e9d42. 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/USC4R2224100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfd5d097576e5b9e789485c7a1381f7188f1e37e79e9bfa28220f0e997ee51e. 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/USC4R2224101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45230924a958496e6136d417daf6c89fec5152800c4302d7c3a76609bd740294. 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/USC4R2224102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cf3d48978fc50ef3b59c27024021cdb2c0f8f91f412f292ce4d67f9133033e. 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/USC4R2224103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7203f6960b1fbf5395b86f20370ff3798537ce1d15fcd44414534fce7459569. 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/USC4R2224104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb49b5fe501afc934e11fdc7dd46e8a9a02307d01c0085bd5bbce6aba6b53d33. 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/USC4R2224105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9314fdf3b0bd2fa8aa6d0356da55e2afc4cacc113bba36639354f13a4b3930c. 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/USC4R2224106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbccdac08adc7786af3c1675abe77651d9d93110f7e7f96e99ea7ea895cd7833. 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/USC4R2224107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba821a586b0ed86694a7e43cb545568596a4a5caeef55ae71ae96eb7224a3449. 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/USC4R2224108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5281f8141b743d75149f60c76aefc216e3ca6feaa25c5c1218e7fb7532f043. 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/USC4R2224109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596d0bf7a0dd1de1c8bd4cd6fd214600c2aec82f849e16de5d74a7d9027818d2. 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/USC4R2224110.