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 0xd6a6125ce9fb3ca028c933405ce1920c673f7f42cf8a6e3daac5d4aa5c14c54c. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/061224bd-cb30-47f0-bd3d-027c02eb8a5e.json and https://artists.proofprofile.net/proofs/artist/061224bd-cb30-47f0-bd3d-027c02eb8a5e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Golden Age of Light Music: Table for Two
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 0xc6f69202462c4f0604914df74f7a9e7da682a8ca3c01214105355915b9fe5426. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/CH6631552701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8064e45b9ce966c211cc9d3dd6bab943a8682ed27228ece6922b46980079fe. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/CH6631552703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d820c88ab8b6916ea2f25e7afa1f90427752f4da5cc6fc9ca9199ac14a9350. 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/CH6631552704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f454f0851fbb681c0ed64019446ba42e156e7363892d2307f15cead4cba9eb. 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/CH6631552705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501e1273265b523b76845f2914861c9b3c2b79b8007ef042d622b88bdd3aa6d4. 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/CH6631552706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548ef7d49d145f3149d755bc19faa1e68b15f9f2ffb831549c5f1d198363cb23. 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/CH6631552707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1597de2a8549d68fce80d1894264254b2123022d9ac40a794dfeb63116812e6a. 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/CH6631552708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c710757f28fa225ecaf44c3dbae1a231067c2f618aeada45cdfbf5e0792eb09. 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/CH6631552709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc30d8b15b5c715f06b2d22e3757bd32f26b152d02330cd187ffa0e245f5c15. 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/CH6631552711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaa271e0b012a2b7b4669f0cc192d87085da75e57df2ce048859e50d716a685. 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/CH6631552713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e040030f7953894b0b8fd2b6d1b96dbeac539c08a94f66dcfcb503de2a48a3a. 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/CH6631552714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1915727b2eed676de97e5be294312053945cdbe3eafd08275b73be0c7726fb. 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/CH6631552716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe781b414e1b6180f769c73b270ce3cd712aa3957a404d7908613af3508b69472. 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/CH6631552717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e90e9924577b18f2633af49d0d86a30f15bfd0cbac1f98d7fd900fe85aa2bb. 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/CH6631552718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cba1290fb4834fa7f0c4af89f52e647398a75cd5c1c9c268ba7c32119147bb. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/CH6631552725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5d4de003a2b68dbdb938c96aca69d69450053bfb8e8d072708fae487d96651. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/CH6631552702.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578a19962cb62108bbac1eb38979a058e789498633f57e4df26691d3af640aa5. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/CH6631552710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82da44753d27993629c9c0b8ee0ebe1099924f4f63785040448e88a19d91129b. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CH6631552712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6065bba16d2c83b56e0dc65e71c1ac6cb1828ab87afa00563cc768672e90d2b9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CH6631552715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bc7cba902d87cba63c2a2fd0af30a4744815b31b2825eee87fa13cc97098a4. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/CH6631552719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c11966617816e40852ee6ba382e058a6b36543d980bbde08bcaf282f2eb581. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CH6631552720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afe3fdb5d7592e4a03c33bbaaadc66ebe1c889617c76495701df35eebea6de6. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CH6631552721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf067c4197887080b9a1b10d3b3539b7ca812fd022bc8691c4c5e3bdc1b78a8b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CH6631552722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6f546d48b27f13986d04846c6365e907883af1869df7df933a725ec0c716e9. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CH6631552724.
The Golden Age of Light Music: Light Music from the Silver Screen
Early one Morning (featured in Spring in Park Lane)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1938aecb2e191257d89c2251f4e24e1c3790fb54d2af9f4a75e63684a3ffac1f. 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/CH6630450901.
Dancing in the Dark (Soundtrack-recording from the Band Wagon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7b69a86f7525617929f2ee32e30ea5a641c04f2ded02bb548b58900d0518b6. 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/CH6630450903.
Highlights from "My Fair Lady" and "The King and I"